This product is a Regulated Product subject to the Foreign Exchange and Foreign Trade
Law of Japan. Outside Japan, Export restrictions may apply to the product. Contact the
authorities concerned for rules and regulations regarding export of this product.
Introduction
◇ Thank you for purchasing this Iwatsu’s instrument.
◇ Please read this manual before using the instrument, then keep the manual handy for future
reference.
◇ This operation manual mainly describes notes on use, operation method, examples of use and
specifications, RS-232C and GP-IB remote control.
Safety Precautions
To ensure safe operation of this instrument and to prevent injury to the user or damage to property,
read and carefully observe the
warnings and
cautions in the following section and
associated symbols marked on the panel diagrams.
Definitions of
warnings and
cautions used in this manual
WARNING
Incorrect operation or failure to observe the warning may result in
death or serious injury.
CAUTION
Incorrect operation or failure to observe the caution may result in
injury or damage to instrument.
Precautions
◇ Parts of the contents of this manual may be modified without notice for improvements in
performance and functions.
◇ Reproduction or reprinting of the contents of this manual without prior permission from Iwatsu
is prohibited.
◇ The display tube contains cold cathode fluorescent lamps.
Please follow local ordinances or regulations for its disposal.
◇ For questions about this instrument, contact IWATSU TEST INSTRUMENTS CORPORATION
at the address listed at the end of this manual or our sales distributors.
Revision History
◇ Feb 2003 : 1st edition
KML043811
A1-425500(B)
 I 
Read this page to ensure proper safety.
(Also read the following pages.)
WARNING
z Do not use in an environment with explosive gases.
This may result in explosion.
z If you notice smoke, abnormal smell or abnormal sound,
immediately turn off the power and unplug the power plug from
the receptacle.
Continued use under these circumstances may result in electric shock or fire. Turn off
the power, disconnect the power plug from the receptacle and contact Iwatsu office or
our sales distributors for repair. Repairing the product yourself is very dangerous. Do
not attempt to repair the product under any circumstances.
z Make sure no water gets on or inside the product.
Do not use the product if this happens. Failure to observe this precaution may result in
electric shock or fire. If water gets on or inside the unit, immediately turn off the power,
unplug the power plug from the receptacle and have the unit repaired. Contact Iwatsu
office or our sales distributors for repair.
z Do not touch the plug of the power cable if your hands are wet.
This may result in electric shock.
z Do not put any foreign objects, such as metallic or flammable
objects through the ventilation port.
If any foreign object is put through the ventilation port, this may result in electric shock,
fire, and/or malfunction.
If any foreign object enters the instrument, immediately turn OFF the power switch,
unplug the plug from the receptacle, and contact Iwatsu office or our sales distributors for
repair.
z Do not place this instrument on an unstable place such as a
shaky stand or inclined place.
Letting the instrument fall or topple down may result in electric shock, fire or injury. If
this instrument falls or its cover is damaged, turn off the power switch, unplug the power
plug from the receptacle and contact Iwatsu office or our sales distributors for repair.
z Do not remove the cover and panel.
If any part inside the instrument is touched, this may result in electric shock.
Iwatsu office or our sales distributors for inspections, calibrations.
 II 
Contact
Read this page to ensure proper safety.
(Also read the following pages.)
WARNING (Continued)
z Always connect the grounding line of the input connector of this
instrument to the ground potential level (ground) of an object to
be measured.
If the grounding line of the input connector of this instrument is connected to a level other
than the ground level of an object to be measured, this may result in electric shock
(damage to object to be measured, this instrument, or other connected devices).
z Do not measure the primary power supply.
The input circuit of this instrument is a type of unbalanced method. If electrically floating
two points, such as primary electric power supply, are connected, this may result in
electric shock, fire, and/or malfunction. Start the measurement after checking that the
grounding potential levels of an object to be measured are obtained correctly.
z Do not attempt to modify the instrument.
This may result in electric shock, fire or malfunction.
Requests to repair the unit may be refused if unauthorized modifications have been
made.
z Use the instrument at a specified supply voltage.
Table 1 Power voltage range
Mid-voltage
LINE VOLTAGE
100V
90V - 110V
110V
100V - 120V
220V
198V - 242V
240V
216V - 264V
Using the instrument at a voltage other than that
specified may result in electric shock, fire or
malfunction. The mid-voltage is shown on the rear
panel. Before connecting the power cord, always
check the power voltage. The instrument can be
operated in a voltage range shown in Table 1.
z When handling power code:
DO NOT ATTEMPT TO REPAIR CODES YOURSELF. This may result in fire or
electric shock. If the power cord is damaged, have repairs conducted. Contact Iwatsu
office or our sales distributors for repair.
•
•
•
•
•
•
•
•
Do not attempt to fabricate the power cord.
Do not forcibly bend the power cord.
Do not twist the power cord.
Do not bind the power cords together.
Do not pull power cord by the cord.
Do not heat the power cord.
Avoid getting the power cord wet.
Do not place heavy objects on top of the power cord.
 III 
Read this page to ensure proper safety.
(Also read the following pages.)
CAUTION
z Always use a 3-core power cord applicable to the power voltage.
When using a power cord not applicable to the power voltage, fire may result.
Unless otherwise specified at purchase, the power cord for the 100V system∗1 is supplied
with the instrument. If the instrument is operated with the power voltage changed to the
200V system∗2, always use the 3-core power cord for the 200V system (rating : 250V)
specified by our company.
Mid-voltages of 110, 220 and 240V are factory options.
∗1
∗2
The mid-voltage is 100V or 110V.
The mid-voltage is 220V or 240V.
z Turn off the power switch before connecting or disconnecting the power cord.
Connecting or disconnecting the power cord while the power switch is ON may result in
electric shock or malfunction.
z When disconnect the power cord from the receptacle, hold the plug to pull it out.
Pulling the power cord may result in electric shock or fire.
z When any cables are connected to the instrument, do not pull such cables so that
the instrument does not fall down. Always strictly observe this caution.
If the instrument is fallen down, this may result in electric shock, personal injury and/or
fire.
z Do not use any damaged cable or adaptor.
If any damaged cable or adaptor is used, this may result in electric shock and/or fire.
z If the instrument will not be used for an extended period of time, unplug the power
plug from the power receptacle for safety.
z If the function generator is fallen down, the impact may result in personal injury or
damage to other devices.
When transporting this instrument, always disconnect the cables and hold the center of
the grip firmly so that the instrument does not fall down.
z When transporting this instrument, use the packing material provided at the time
of purchase or packing material equivalent at least.
Excessive vibration or shock applied to this instrument during transportation may cause it
to malfunction, resulting in fire. If you do not have the proper packing materials needed to
ship the unit, contact Iwatsu office or our sales distributors for repair. When
having the unit transported by a shipping company, write "Precision Instrument - Handle
With Care" on each side of the packing box.
 IV 
Read this page to ensure proper safety.
(Also read the following pages.)
CAUTION (Continued)
z Do not attempt to use this product if is has become damaged.
This may result in electric shock or fire.
If the unit fails to operate properly, have it repaired. Contact Iwatsu office or our sales
distributors for repair
z Do not apply a voltage beyond the specified level to the input terminal.
If a voltage exceeding the specified level is applied, this may result in malfunction. The
maximum input voltage is 0V to 5Vpeak except the external modulating input on the rear
panel (The maximum input voltage of the external modulating input is +/-5V).
z Do not connect any deformed or damaged cable with the BNC connector to the
output plug when inputting the signal.
Doing so may result in damage to the OUTPUT, SUNC OUT, TRIG GATE IN or etc.
connectors.
z Do not connect the BNC output connector to a outputting signal.
If a voltage is applied to the output connector, this may result in malfunction.
 V 
Operation Manual
Contents
Operation Manual
Chapter 1 Overview ............................................................................................................................. 2
1.1 Features ......................................................................................................................................... 2
Chapter 2 Introduction ......................................................................................................................... 3
2.1 Before Using................................................................................................................................... 3
2.1.1
Safety Guidelines for Installation .......................................................................................... 3
2.1.2
About the isolation................................................................................................................. 4
2.2 Let’s Start Using the Instrument ..................................................................................................... 5
2.3 Front Panel ..................................................................................................................................... 7
2.3.1
[AMP] Area............................................................................................................................ 7
2.3.2
[Function] Area...................................................................................................................... 8
2.3.3
[MENU & FREQ] Area......................................................................................................... 10
2.3.4
[CH1 OUT], [CH2 OUT], [SYNC OUT-F] ............................................................................ 11
2.3.5
Arrow Keys .......................................................................................................................... 11
2.3.6
Status LEDs ........................................................................................................................ 12
2.3.7
Display................................................................................................................................. 12
2.4 Display Modes .............................................................................................................................. 13
2.4.1
Normal Display Mode.......................................................................................................... 13
2.4.2
Offset, Duty-Factor Setting Modes...................................................................................... 13
2.4.3
Detailed display mode......................................................................................................... 13
2.4.4
Menu Mode ......................................................................................................................... 14
2.5 Numeric Input of Setting Values................................................................................................... 18
2.5.1
Arrow Key and Rotary Knob Method .................................................................................. 18
2.5.2
Direct Input from the 10-key Method................................................................................... 21
2.6 Rear Panel ................................................................................................................................... 23
Chapter 3 Operating Procedures....................................................................................................... 25
3.1 Output Waveform Selection ......................................................................................................... 25
3.2 Frequency Setting ........................................................................................................................ 27
3.2.1
Arrow Key and Rotary Knob Method .................................................................................. 27
3.2.2
Direct Input from the 10-key Keypad Method ..................................................................... 28
3.3 Amplitude and DC Voltage Settings............................................................................................. 29
3.3.1
Arrow Key and Rotary Knob Method .................................................................................. 29
3.3.2
Direct Input from the 10-key Method................................................................................... 30
3.4 Waveform Output Method ............................................................................................................ 31
3.4.1
OUTPUT Channel ............................................................................................................... 31
3.4.2
About Generation Modes .................................................................................................... 31
3.5 Offset Setting................................................................................................................................ 33
3.5.1
Offset setting procedure...................................................................................................... 33
3.5.2
Caution ................................................................................................................................ 34
3.6 Duty-Factor Setting ...................................................................................................................... 35
3.6.1
Duty-Factor Setting Steps ................................................................................................... 35
3.6.2
Operational error message and Caution............................................................................. 36
3.7 Initial Phase Setting (PHA Menu)................................................................................................. 38
3.7.1
Initial Phase Setting Steps .................................................................................................. 38
3.8 Sweep Settings (SWEEP Menu).................................................................................................. 40
3.8.1
When the generation mode is continuous generation mode ([CONT] key is illuminated) .. 40
3.8.2
When the generation mode is triggered generation mode ([TRIG] key is illuminated)....... 41
3.8.3
When the generation mode is gate mode ([GATE] key is illuminated) ............................... 42
3.8.4
Sweep settings steps .......................................................................................................... 43
3.8.5
Rear panel output................................................................................................................ 47
3.8.6
SWEEP OFF Steps............................................................................................................. 47
3.8.7
Operational error message and Caution............................................................................. 48
3.9 Burst Settings (BURST Menu) ..................................................................................................... 50
3.9.1
Burst Settings Steps............................................................................................................ 50
3.9.2
BURST OFF Steps.............................................................................................................. 51
3.9.3
Operational error message and Caution............................................................................. 52
3.9.4
Generation Modes and Burst Operation: ............................................................................ 53
3.10 Modulation Settings (MODU Menu) ............................................................................................. 54
3.10.1 AM Modulation .................................................................................................................... 57
3.10.2 FM Modulation .................................................................................................................... 61
3.10.3 PM Modulation .................................................................................................................... 66
3.10.4 PWM Modulation................................................................................................................. 71
3.10.5 FSK Modulation................................................................................................................... 75
3.10.6 PSK Modulation .................................................................................................................. 79
3.10.7 Pulse Motor Modulation Settings (MT Menu)...................................................................... 83
3.11 Bank Settings (BANK ON/OFF Menu) ......................................................................................... 92
3.11.1 Bank settings steps ............................................................................................................. 92
3.12 Arbitrary waveform's Settings (ARB Menu).................................................................................. 97
3.13 Generation Control by External Signal......................................................................................... 99
3.13.1 Trigger Controlled Generation ............................................................................................ 99
3.13.2 Gate Controlled Generation .............................................................................................. 101
3.14 Save and Recall of Panel Settings (SETUP Menu) ................................................................... 102
3.14.1 Save of Panel Settings...................................................................................................... 102
3.14.2 Recall of Panel Settings .................................................................................................... 103
3.14.3 Initialization of Panel Settings ........................................................................................... 104
3.15 System Settings (SYSTEM Menu) ............................................................................................. 109
3.15.1 Output Control................................................................................................................... 109
3.15.2 Remote Control (GPIB, RS232)........................................................................................ 109
3.15.2.1 GPIB Settings.................................................................................................. 110
3.15.2.2 RS232 Settings ............................................................................................... 110
3.15.3 POWER ON Settings ........................................................................................................ 112
3.15.4 Beep Sounds..................................................................................................................... 113
3.15.5 Low-power Mode............................................................................................................... 113
3.15.6 Frequency range (FREQ-RANGE) ................................................................................... 114
3.15.7 Synchronous Output (SYNC OUT) ................................................................................... 115
3.16 Noise waveform.......................................................................................................................... 117
Chapter 4 Specifications .................................................................................................................. 118
Remote Manual
1. Remote Control .................................................................................................................................. 1
2. Remote Control Through RS-232 Interface........................................................................................ 3
3. Remote Control Through GP-IB Interface .......................................................................................... 7
4. Remote Control Commands............................................................................................................. 12
Appendix
1. ABOUT ARB..................................................................................................................................A - 1
2. MODULATION OF ARB DATA TO IMPLEMENT MOTOR SPEED CONTROL...........................A - 4
3. PULSE MOTOR MODULATION (PMC OPTION SG-507) ...........................................................A - 8
Symbols used in this manual
• [
] indicates an operation key on the front panel.
• The
[sin] key indicates sin .
• [NUM＋
] indicates an action while the [NUM] key is illuminated.
The operation of each key is indicated in blue text.
In the operation [NUM＋sin], the [sin] key operates as a “1” input key.
[NUM ＋ sin] actually indicates pressing the [sin] key while the [NUM] key is
illuminated.
• [↑], [↓], [←] and [→] symbolize [up], [down], [left] and [right].
These keys are used for moving between setting items or changing a setting value in the
fluorescent display.
[up]
[left]
[right]
[down]
• 100mV : Flashing of the letter m is indicated with an under bar.
• [AMP] area arrow keys are indicated as [Amp >] and [Amp <]. These keys are used for
setting the amplitude.
• [MENU & FREQ] arrow keys are indicated as [FREQ >] and [FREQ <].
• These keys are used for setting various values including frequency.
The unit of the voltage is Vp-p not Vrms.
VFD stands for Vacuum Fluorescent Display.
 1 
Chapter 1
1.1
Overview
Features
This function generator uses DDS (Direct Digital Synthesis) for superior frequency
stability.
■
1 mHz - 15 MHz wide generation range (sine wave, square wave)
■
2CH Out (The generation mode and TRIG can be independently set).
■
Arbitrary waveform function (12 bits, 4 waveforms, and frequency ranges
1mHz-1.6MHz)
■
Vacuum Fluorescent Display that can simultaneously display voltage and frequency
■
Frequency accuracy ±10 ppm
■
Frequency and amplitude can be input from a 10-key (waveform does not become
discontinuous even when frequency is changed)
■
Variable maximum offset (when output terminal is open) +10 V, –10 V
■
Equipped with linear/log SWEEP function (can be used over entire range of
frequencies for which generation is possible)
■
DUTY 0 - 100% (pulse wave, ramp wave)
■
Various modulation functions
■
This instrument is isolated between the case earth and GND of the signal. The
maximum voltage is ±42V.
■
Options
・ Pulse motor control function
・External modulation input
・ Supply voltage change(110V, 220V, 240V)
 2 
Chapter 2
2.1
Introduction
Before Using
2.1.1 Safety Guidelines for Installation
● Always operate this instrument within its specified operating range.
Operating this instrument outside the specified range may result in damage to the
instrument.
The following shows the operating temperature and humidity ranges.
For indoor use only
Temperature : 0°C to +40°C (no condensation)
Humidity :
85% RH (0°C to +40°C) or less
● Do not place this instrument in an area where large amounts of moisture or
dust exists.
Operating this instrument in an area where large amounts of moisture or dust exists
may result in electric shock and/or fire.
● Do not place any objects on top of this instrument.
Placing objects on top of this instrument may cause the cover to make contact with
the internal circuitry, resulting in electric shock, fire, and/or damage to the instrument.
● Do not place objects close to the cooling vent.
If an object is placed close to the cooling vent, the temperature inside the instrument
will increase and may result in fire and/or damage to the instrument.
● Maintain sufficient space behind and on both sides of this instrument.
If this instrument is mounted in a rack or on top of another measuring unit, pay special
attention so that the temperature does not rise. Failure to do so may result in
malfunction or degraded performance. For further information, contact IWATSU at
the address listed at the end of the manual or our sales distributors.
● Dropping this instrument may result in bodily
injury or damage to the unit itself.
When transporting this instrument, always disconnect
the cables and hold the center of the grip firmly, being
careful not to drop the instrument.
● Positioning of this instrument
 3 
Always position the instrument horizontally or use the stand as shown in the figure
below. When using the stand, pull the feet toward the front panel and lock them into
place as shown in the figure.
Do not operate with the rear panel facing down.
Bad
Good
Good
2.1.2 About the isolation
● To decrease the influence of the noise by the GND loop, each BNC earth is
isolated from GND of the case earth. The insulation resistance is about 1MΩ.
● Be careful not to exceed ±42V between GND of the case earth and each BNC, this
isolation does not have aimed at floating of a high voltage, failure to observe this
precaution result in electric shock.
● Use this instrument with noticing the following points.
GND of each BNC is common GND.
The same ground as the case earth is :
shell and signal GND of the GPIB connector, and shell and signal GND of
RS-232 connector.
The same ground as the each BNC is :
the rear terminal of pulse motor modulation option.
 4 
2.2
Let’s Start Using the Instrument
(1) Connect the power supply
Turn OFF the power switch and then plug the power cord into an electrical outlet. Use
the 3-prong power cord supplied with this instrument.
(2) Turn ON the POWER switch.
After the [SG-4115 xxx yyy] message appears, the setting value of the currently
selected waveform will be displayed on the fluorescent display. (refer to “3.15.3 the
setting at the POWER ON”, numerical value set at power supply OFF).
Pressing the [ON] key causes it to illuminate, and the waveform to be output from this
instrument.
If the OUTPUT CONTROL is set to BOTH in the SYSTEM menu, the both channels
change at the same time when the either channel is set to ON/OFF.
For example, if the panel display is (VFD)1: 100 mV 1.0000 kHz and the [sin]
FUNCTION key is illuminated, a sine wave of 100 mV, 1.00 kHz is being output from
this instrument. (For details, refer to chapter 2.4, “Display Modes.”)
 5 
The waveform can be verified by connecting three BNC cables to an oscilloscope.
BNC Cable
(3) Changing the channel
Pressing the [CH] key changes the channel to CH1 or CH2, the menu can set the
condition of being output waveform for the selected channel.
(4) Changing the waveform
Pressing the [square] key or [triangle] key changes the waveform to a square wave or
triangular wave respectively. (For details, refer to chapter 3.1, “Output Waveform
Selection.”)
(5) Changing the frequency
Rotating the frequency knob varies the frequency of the output waveform. (For
details, refer to chapter 3.2, “Frequency Setting.”)
(6) Changing the amplitude
Rotating the AMP knob varies the amplitude of the output waveform. (For details,
refer to chapter 3.3, “Amplitude and DC Voltage Settings.”
Note) See the chapter 3.15.3 “POWER ON settings of the system menus”, if this
instrument will not start up with the settings that were effective at the time of the
previous power shutdown, start up with the initialized settings.
 6 
2.3
Front Panel
2.3.7 Display
2.3.2 [FUNCTION] Area
2.3.6 Status LEDs
2.3.1 [AMP] Area
2.3.3 [MENU & FREQ] Area
2.3.4 [CH1OUT]
[CH2OUT]
[SYNC OUT-F]
2.3.5 Arrow keys
2.3.1 [AMP] Area
[AMP]
Sets the amplitude of the output waveform.
[Amp <]
Moves the underbar of the digit for output
amplitude setting to the left.
[NUM + AMP<]
Operates as a [mV] key.
[Amp >]
Moves the underbar of the digit for output amplitude setting to the
right.
[NUM + AMP>]
Operates as a [V] key.
AMP knob
Rotating to the right increases the amplitude and rotating to the left
decreases the amplitude.
 7 
2.3.2 [Function] Area
* While the [NUM] key is illuminated, the keys operate as 10-keys with value indicated
above [[x]] .
・ Waveform selection keys
The only one key is illuminated corresponding to the currently selected waveform.
DC
[sin] key
[ [1 key] ]
([NUM + sin])
[square] key
[ [2 key] ]
([NUM + square])
[pulse] key
[ [3 key] ]
([NUM + pulse])
[triangle] key
[ [4 key] ]
([NUM + triangle])
[ramp] key
[ [5 key] ]
([NUM + ramp])
[DC] key
[ [+/−] ]
([NUM + DC])
NOISE
[NOISE] key
ARB
[ARB] key
For waveform selection, refer to chapter 3.1, “Output Waveform Selection.”
 8 
・ Generation mode keys
These keys are to select the generation mode of the waveform.
One of the three mode keys, [CONT], [ GATE] or [TRIG] is illuminated.
CONT
[CONT] key
[ [6 key] ] ([NUM + CONT])
GATE
[GATE] key
[ [7 key ] ] ([NUM + GATE])
TRIG
[TRIG] key
[ [8 key] ] ([NUM + TRIG])
MAN
[MANUAL] key
[ [9 key] ] ([NUM + MAN])
Refer to chapter 3.4.1, “About Generation Modes” and to chapter 3.13, “Generation Control
by External Signal.”
・ Offset key
Sets the offset of the output waveform. Refer to chapter 3.5, “Offset Setting.”
[OFS] key
[ [0 key] ]
([NUM + OFS])
When the key is illuminated, an offset can be added to the waveform.
・ Duty key
Sets the duty-factor of the output waveform. Refer to chapter 3.6, “Duty-Factor Setting.”
[DUTY] key
[ [. key] ]
([NUM + DUTY])
When the key is illuminated, the DUTY has been set except an initial value.
・ Numeric keys
[NUM] key
Enables use of the 10-key.
The operation of each key when pressed, while the [NUM] key is illuminated, is shown in blue
text.
・ [ENT] key
Validates and enters the setting value. Refer to chapter 2.5, “Numeric Input of Setting
Values.”
 9 
2.3.3 [MENU & FREQ] Area
・ MENU keys
[MENU (ESC)] key
[ [mHz/mS] ]
([NUM + MENU (ESC)]), ([ [LOCAL] ])
Used for each menu setting. (Refer to chapter 2.4, “Display Modes,” section (3) “Menu
Mode.”)
([ [LOCAL] ] is used to cancel the remote mode.)
[BACK] key
[ [Hz/s key] ]
([NUM + BACK])
Used for setting numeric values and menu items. (Refer to chapter 2.5, “Numeric Input of
Setting Values.”)
[FREQ <] key
[ [kHz key] ]
([NUM + frequency<])
Moves the underbar of the numeric value or menu item digit setting to the left.
[FREQ >] key
[ [MHz key] ]
([NUM + frequency>])
Moves the underbar of the numeric value or menu item digit setting to the right.
Frequency Knob
Used to increase/decrease or change numeric values and menu items. Rotating to the right
increases the value and rotating to the left decreases the value.
[DISP] key
In this mode, the frequency appears with nine digits or less when
[DISP] key is illuminated. (The amplitude is not displayed. )
 10 
2.3.4 [CH1 OUT], [CH2 OUT], [SYNC OUT-F]
[CH]
Selects the channel. The key is illuminated when the channel is
changed.
[CH COPY]
Copies the setting of the channel in specification with the CH key
into the other channel.
The key is illuminated when pushing it once, and the copy is
executed when pushing again.
[CH1OUT]
[CH2OUT]
[ON] key
Controls ON/OFF of being output. (Refer to chapter 3.4,
Waveform Output Method.”
When it is ON (the key is illuminated), the waveform is output.
The waveform output becomes the following according to the
setting of OUTPUT CONTROL in the system menu.
EACH: Each CH can be independently turned on and off.
BOTH: Both CH can be turned on and off at the same time.
[SYNC OUT-F]
Synchronous output. (Refer to 3.7 Initial Phase Setting and
chapter 3.13.5, “Synchronous Output (SYNC OUT).”)
Can be switched ON/OFF by menu settings.
Phase is 0゜that SYNC OUT changes to “H”, 180゜to “L”.
2.3.5 Arrow Keys
Used to move items and change settings in the menu mode.
[←] key
[→] key
[↑] key
[↓] key
Note) [←] key can be used as a backspace when the direct input from 10-key Method.
 11 
2.3.6 Status LEDs
REMOTE
When illuminated, this instrument is in the remote mode. (Refer to chapter
3.15.1, “Remote Control (GPIB, RS232).”
SWEEP
When illuminated, this instrument is in the sweep mode. (Refer to chapter
3.8, “Sweep Settings.”)
BURST
When illuminated, this instrument is in the burst mode. (Refer to chapter
3.9, “Burst Settings.”)
MODU
When illuminated, this instrument is in the modulation mode. (Refer to
chapter 3.10 “Modulation Settings.”)
2.3.7 Display
The 16-digit fluorescent display indicates the output waveform’s setting values or the
menu.
The channel that can set and
change the settings is shown.
 12 
2.4
Display Modes
This instrument has the following 3 display modes.
2.4.1 Normal Display Mode
This display mode becomes active immediately after power is turned on. In the
normal display mode, the display is as shown below.
Normally, this display mode is used. The frequency and amplitude of the output
waveform can be set in this display mode. The current values of the amplitude and
frequency of the output waveform are displayed. Six digits or less in a detailed
display are rounded off and displayed.
2.4.2 Offset, Duty-Factor Setting Modes
When the [OFS] key or [DUTY] key is pressed, the offset or duty-factor setting mode
is entered, enabling the respective offset or duty-factor of the output waveform to be
set (duty-factor is only valid for square wave, pulse wave and ramp wave). Pressing
any key during these modes will initiate a return to the normal display mode. Refer to
chapter 3.5, “Offset Setting” and chapter 3.6, “Duty-Factor Setting.”
2.4.3 Detailed display mode
Displays the frequency with nine digits.
If the [DISP] key is pushed with the amplitude display mode that becomes nine digits display
mode, and then that returns to the normal display mode when pushing the [DISP] key again.
 13 
2.4.4 Menu Mode
When the [MENU] key is pressed and becomes illuminated, the menu mode is
entered and various settings can be made. Pressing the [MENU] key again
un-illuminates this key. Then the normal display mode appears. The menu tree and
its setting items are shown on the next page. For details, refer to the specific
chapters.
The channel that can set and
change the settings is shown.
 14 
[Menu tree]
 15 
MODU: modulation menu
 16 
Use the arrow keys and frequency knob to move within the menu mode.
When such movement is possible, pressing the [→] key moves down one layer.
Pressing the [←] key or [BACK] key moves up one layer.
Pressing the [↑] and [↓] keys or rotating the frequency knob moves cyclically among items within
the same layer.
・ The following message might be displayed in a set change by the menu when time passes.
1:！ＳＥＴＴＩＮＧ！
Note : Do not turn off the power during changing the menu.
When the power is turned off by any chance, SG-4115 might be initialized.
After that, SG-4115 starts up with the initialized setting.
Set POWER-ON SETUP LAST , SG-4115 start up with the previous power
shutdown.
See [3.15.3] POWER ON Settings.
 17 
2.5
Numeric Input of Setting Values
Numeric setting
For the numeric setting of frequency, amplitude, and other various parameters, there are
the “arrow key and rotary knob method” and the “direct input from the 10-key method.”
2.5.1 Arrow Key and Rotary Knob Method
(1) Setting the voltage
Setting Procedure
Output waveform
Step 2: set the units
Setting Procedure
Display
1
Press the [Amp >] or [Amp <] key to cause the blinking underbar to 100mV
move directly to the left of V.
2
Rotate the AMP knob and set the units. Units can be changed 10× 100mV
1.00 _ V
or 1/10×.
10.0 _ V
3
Press the [Amp >] or [Amp <] key to cause the underbar to blink at 500mV
the desired digit for setting.
4
Rotate the AMP knob to the desired numeric value setting.
502mV
5
Repeat steps 3 and 4 for each digit to set the desired voltage value 632mV
(peak value).
(50Ω 0dBm)
Values exceeding the setting range cannot be set.
 18 
(2) Setting the frequency
Output waveform
Step 2: set the frequency units
1
2
3
4
5
Setting Procedure
Press the [FREQ >] or [FREQ <] key to cause the blinking
underbar to move directly to the left of Hz.
Rotate the frequency knob and set the units. Units can be
changed 10× or 1/10×.
Press the [FREQ >] or [FREQ <] key to cause the underbar to
blink at the desired digit for setting.
Rotate the frequency knob to the desired numeric value setting.
Repeat steps 3 and 4 for each digit to set the desired frequency
value.
Values exceeding the setting range cannot be set.
 19 
Display
10.000kHz
10mHz
100.00_ Hz
・
・
・
100.00kHz
15.000MHz
1.0000kHz
1.003kHz
12.30kHz
(3) Setting other parameters
Various settings such as offset, duty-factor, sweep time, etc.
(Units vary depending on each parameter.)
1
2
Setting Procedure
Press the [FREQ >] or [FREQ <] key to cause the underbar to
blink.
Rotate the frequency knob and set the units. Units can be
changed 10× or 1/10×.
Units can also be changed with the [↑] key or [↓] key.
3
Display
100ms
100ms
1.00_s
10.0_s
100_s
10.0s
Press the [FREQ >] or [FREQ <] key to cause the underbar to
blink at the desired digit for setting.
4
Rotate the frequency knob to the desired numeric value setting. 10.3s
The value can also be incremented and decremented with the [↑]
and [↓] keys.
5
Repeat steps 3 and 4 for each digit to set the desired frequency 12.3s
value.
For all parameters, values exceeding the setting range cannot be set.
 20 
2.5.2 Direct Input from the 10-key Method
Press the [NUM] key illuminates this key.
While the [NUM] key is illuminated, input the desired numeric value.
Next, press the units key to make the setting value effective. If there are no units, press
the [ENT] key.
In cases where the setting of a negative value is possible, use the [+/−] key to set the
polarity. Each press of the [+/−] key toggles the polarity.
* The [+/−] key is only accepted when signed values are valid for the setting.
* If an incorrect numeric value is input, use the [←] key (which operates as a backspace
key) to delete the number and then re-input the correct number.
* After the value has been input, it is set when the unit’s key (or the [ENT] key) is
pressed. Prior to pressing the units key or the [ENT] key, if the [NUM] key is pressed
causing it to become unlit, the numeric value that had been input becomes invalid and
the display returns to its original state.
Example 1) Setting the amplitude or DC voltage of the waveform being output to 10 mV
With the [NUM] key illuminated, press the [1] and [0] keys in sequence. (In other words,
press [sin] and then [OFS].) Press the [mV] units key (the [Amp <] key). When the units
key is pressed, the [NUM] key becomes unlit. When setting the amplitude of the
waveform being output, if the [ENT] key is pressed instead of a unit’s key, the operational
error message appears, prompting a valid units key to be pressed.
！
S
Ｅ
Ｌ
Ｅ
C
T
Ｕ
Ｎ
Ｉ
Ｔ Ｋ
Ｅ
Ｙ
!
Select a valid units key of [mV] or [V].
Example 2) Setting the frequency of the waveform being output to 123.4 kHz
With the [NUM] key illuminated, press the [1], [2], [3], [.] and [4] keys in sequence. (In
other words, press [sin], [square], [pulse], [DUTY], and then [triangle].)
Press the [kHz] units key (the [FREQ <] key). When the units key is pressed, the [NUM]
key becomes unlit. When setting the frequency of the waveform being output, if the
[ENT] key is pressed instead of a units key, the operational error message appears,
prompting a valid units key to be pressed.
！
S
Ｅ
Ｌ
Ｅ
C
T
Ｕ
Ｎ
Select a valid units key of [mHz], [Hz], [kHz] or [MHz].
 21 
Ｉ
Ｔ Ｋ
Ｅ
Ｙ
！
Example 3) Setting the time to 10 ms
With the [NUM] key illuminated, press the [1] and [0] keys in sequence. (In other words,
press [sin] and then [OFS].)Press the [ms] units key (the [MENU] key). When the units
key or the [ENT] key is pressed, the [NUM] key becomes unlit.
When setting values other than the amplitude or frequency, the [ENT] key operates the
same as selecting the unit suffix multiplier prior to entering the 10-key input.
If a numeric setting is attempted that exceeds the upper or lower limits for a setting item,
an error beep will sound, a operational error message will be displayed, and the value
will be set at the upper limit value or the lower limit value, whichever is closer.
Operational error message:
!！
U
Ｕ
P
Ｐ
P
Ｐ
E
Ｅ
R
Ｒ
L
Ｌ
IＩ
M
Ｍ
IＩ
T
!
Ｔ
！
上限値を超えた設定値の場合
For signed values which are above upper limit
!！
Ｏ
LＬ O
Ｗ
W
Ｅ
E
Ｒ
R
Ｌ
L
IＩ
Ｍ
M
IＩ
下限値を超えた設定値の場合
For signed values which are under lower limit
 22 
Ｔ
！
T
!
2.6
Rear Panel
(1) TRIG/GATE input
Inputs the signal for generation control.
(H:2.1Vmin, L:0.9Vmax, input impedance: 1 kΩ or more, input voltage range: 0V to 5V.)
For details, refer to chapter 3.13, “Generation Control by External Signal.”
Controls the generation of the channels corresponding to the TRIG SEL menu.
・TRIG1/GATE1 INPUT: at the left of the above figure on the rear panel.
・TRIG2/GATE2 INPUT: at the right of the above figure on the rear panel.
(2) SWEEP SYNC OUTPUT /SWEEP MARKER OUTPUT
While sweep is ON, the SWEEP SYNC signal and SWEEP MARKER signal are output.
・SWEEP SYNC OUTPUT : Outputs a “H” level TTL signal from the rear panel during the
transition interval from the start frequency for sweeping until the
stop frequency for sweeping. (Refer to the “Rear panel output”
section of chapter 3.8, “Sweep Settings and ” 3.8.5, “Rear Panel
Output”.)
As this output terminal is sharing with SYNC-R OUTPUT, if the
sweep is ON, outputs signals as SWEEP SYNC OUTPUT.
The channel is set with SYNCOUT-R in the SYSTEM menu.
・SWEEP MARKER OUTPUT:
Outputs a “H” level TTL signal from the rear panel during the
transition interval from the start frequency for sweeping until the
marker frequency. (Refer to the “Rear panel output” section of
chapter 3.8, “Sweep Settings.” and ” 3.8.5, “Rear Panel
Output”).
The channel is set with SYNCOUT-R in the SYSTEM menu.
 23 
(3)
EXT MODU INPUT
Input the signal for an external modulation.
Refer to details to "Setting of 3.10 modulations".
・EXT MODU INPUT:
The input voltage changes into ±2V and levels of TTL, etc.
according to the type of the modulation.
Input impedance is about 1MΩ or more, and the range of the
maximum input voltage is ±5V.
(Refer to details of the MODU of Chapter 4 input specification.)
(4)
SYNC-R
OUTPUT:
The terminal for a trigger output.
SYNC-R OUTPUT is a common terminal to SWEEP SYNC
OUTPUT.
・SYNC-R OUTPUT:
Refer to "3.15.5 synchronous output SYNC OUT".
The channel is set with SYNCOUT-R in the SYSTEM menu.
(5)
Remote I/O :
Connects with the external control equipment (personal
computer etc.), and to control it. (The latter part of this manual
and refer to "Remote chapter". )
(6)
・RS232 interface:
RS-232 connector for remote control
・GPIB interface:
GPIB connector for remote control
PULSE MOTOR CONTROL
If equipped with the pulse motor control option that can control the modulation and drive for
the pulse motor etc. by connecting those signals with the terminals at the left of the rear
panel. (Refer to 3.10.7 "Setting of the pulse motor modulation ". )
・CW, CCW: The pulse signal for the driver of the pulse motor is output with an open collector.
(<maximum output voltage 50V> maximum output current-100mA)
(TTL level) The direction of the rotation can be controlled by either CW or CCW.
・IN1
: Control signal for pulse motor modulation. When the generation mode is TRIG, the
TRIG signal to start generation is input.
(TTL level, input impedance: 5 kΩ or more)
・IN2
: Control signal for pulse motor modulation. Its purpose changes depending on the
pulse motor modulation MODE setting. (Refer to chapter 3.10, “Pulse Motor
Modulation Settings.”)
(TTL level, input impedance: 5 kΩ or more)
 24 
Chapter 3
3.1
Operating Procedures
Output Waveform Selection
The output waveform can be changed using the [sin], [square], [pulse], [triangle], [ramp] ,
[DC],[NOISE] and [ARB] keys.
key
Key name
Content
Frequency Range
Outputs sine waves
High-mode *
10mHz-15MHz
Low-mode *
1mHz-100kHz
[Outputs square waves
10mHz-15MHz
1mHz-100kHz
[pulse] key
Outputs pulse waves.
10mHz-100kHz
1mHz-100kHz
[triangle] key
Outputs triangular waves.
10mHz-100kHz
1mHz-100kHz
[ramp] key
Outputs ramp waves.
10mHz-100kHz
1mHz-100kHz
[NOISE] key
Outputs The Gaussssian noise
waveform.
---
---
[DC] key
Outputs DC signals.
---
---
[ARB] key
Outputs An arbitrary
waveform.
[sin] key
[square] key
100kHz-1.6MHz
1mHz-100kHz
Note) The mode changes by the setting of the frequency range.
Press the desired output waveform key among the above keys. The selected key will
illuminate and the waveform will change.
・ When sine wave or triangular wave is selected,
the duty-factor setting is forcibly turned OFF. However, values of the duty-factor setting
parameters are saved including the ON/OFF status of the duty-factor and are applied the next
time a waveform (square wave, pulse wave, or ramp wave) is selected for which duty-factor
setting is valid.
・ When DC is selected,
sweep, burst, offset and duty-factor settings are forcibly turned OFF. However, the values of
setting parameters are saved including their ON/OFF status and are applied the next time a
waveform is selected for which those settings are valid.
 25 
Note:
* About Waveform Parameters
For a newly selected waveform, invalid settings are ignored but the setting values are saved.
Those settings are restored the next time a waveform is selected for which they are valid.
Example:
During output of a 60% DUTY ramp wave, the waveform is changed to sine wave.
↓
A sine wave is output.
(DUTY 60% is ignored and the setting values are saved.)
↓
The waveform is changed back to a ramp wave.
The output waveform is a ramp wave with 60% DUTY.
* If the waveform’s upper limit value is exceeded due to changing the waveforms:
If the upper limit frequency is exceeded due to the waveform selection, an error beep sounds
and a operational error message appears, and then the frequency is set to the upper limit of
the selected waveform.
!
U
P
P
E
R
L
I
M
I
T
!
Upper limit operational error message
Here, even if the waveform is changed back to a sine wave, the frequency does not change.
Example:
During output of a 1MHz sine wave, the waveform is changed to a triangular wave
↓
An upper limit value warning appears and the frequency becomes 100 kHz (upper limit
frequency value with a triangular wave).
↓
The waveform is again changed back to a sine wave.
Even if the output waveform is changed back to a sine wave, the frequency remains at 100 kHz.
 26 
3.2
Frequency Setting
The setting of frequency is accomplished by the “arrow key and rotary knob method” or
the “direct input from the 10-key method.”
Pressing the [DISP] key changes the frequency display to the nine digits display.
3.2.1 Arrow Key and Rotary Knob Method
With this setting method, the frequency changes in real-time.
The channel that can set
and change the settings
is shown.
Frequency Setting Procedure
1
Display
Press the [FREQ >] or [FREQ <] key to cause the blinking 10.000kHz
underbar to move directly to the left of Hz.
Rotate the frequency knob and set the units. Units can be 10mHz
changed 10× or 1/10×.
100 mHz
2
1.00Hz_Hz
.
.
.
1.0000MHz
10.000
MHz
3
Press the [FREQ >] or [FREQ <] key to cause the underbar 1.0000kHz
to blink at the desired digit for setting.
4
Rotate the frequency knob to the desired numeric value 1.003kHz
setting.
5
Repeat steps 3 and 4 for each digit to set the desired 12.30kHz
frequency.
Note: Values exceeding the setting range cannot be set.
 27 
3.2.2 Direct Input from the 10-key Keypad Method
Press the [CH] key to select the channel to change the desired settings.
Press the [NUM] key to cause it to illuminate.
While the [NUM] key is illuminated, enter the desired frequency setting with the 10-key in the
[FUNCTION] area.
Set the units with a units key in the [MENU & FREQ] area. When the units key is pressed,
the frequency instantly changes to the frequency that was set. ([NUM] key is unlit.)
Valid units keys are [mHz], [Hz], [kHz] and [MHz].
A frequency that has already been displayed is the frequency set the numerical value at
power shutdown or last time.
Examples
Setting the frequency to 123.4 kHz
Press the [NUM] key to cause it to illuminate, and then press the [1], [2], [3], [.] and [4] keys in
sequence. (In other words, press [sin], [square], [pulse], [DUTY] and then [triangle].)
Press the [kHz] units key (the [FREQ <] key).
When a numeric value that exceeds the setting range is set:
The operational error message 1: !UPPER LIMIT! appears, if the frequency setting exceeds
the upper limit, and the operational error message 1: !LOWER
LIMIT! appears, if the
frequency setting exceeds the lower limit; then the frequency is set to the respective upper or
lower limit value of the selected waveform.
*
If DC or NOISE is selected as the waveform, the display will be similar to 1: +50mV DC ,
1: +50mV NOISE and the frequency cannot be set.
*
If SWEEP is set to ON, the frequency cannot be set. If an attempt is made to change the
frequency using the direct input from the 10-key method, an error beep is sounded and a
operational error message appears:
1:
!
S
W
E
E
P
O
 28 
N
!
3.3
Amplitude and DC Voltage Settings
The setting of amplitude and DC voltage values is accomplished by the “arrow key and
rotary knob method” or the “direct input from the 10-key method.”
(Note) The range of the setting for the waveform is 50mV to 10V (peak value) and the DC output
is -5.00V to +5.00V .
(Note) When the offset setting is ON, settings are possible within the range satisfied by ｜offset
voltage｜ + amplitude/2 ≦ 5.025 V (into a 50Ω termination). For offset setting details,
refer to chapter 3.5, “Offset Setting.”
3.3.1 Arrow Key and Rotary Knob Method
Press the [CH] key to select the channel
to change the desired settings.
Setting Procedure
Press the [Amp >] or [Amp <] key to cause the blinking
underbar to move directly to the left of V.
Display
100mV
2
Rotate the AMP knob and set the units. Units can be
changed 10× or 1/10×.
100mV
1.00 _ V
10.0 _ V
3
Press the [Amp >] or [Amp <] key to cause the underbar to
blink at the desired digit for setting.
500mV
4
Rotate the AMP knob to the desired numeric value setting.
502mV
5
Repeat steps 3 and 4 for each digit to set the desired voltage 632mV
value (peak value).
(50Ω 0dBm)
Values exceeding the setting range of the waveform cannot be set.
1
 29 
3.3.2 Direct Input from the 10-key Method
Press the [CH] key to select the channel to
change the desired settings.
Press the [NUM] key to cause it to illuminate.
While the [NUM] key is illuminated, enter the desired amplitude (peak value) or voltage value
setting with the 10-key in the [FUNCTION] area.
If setting a DC voltage, the polarity can be switched by the [±] key.
Set the units with a units key ([mV] or [V]) in the [AMP] area.
When the units key is pressed, the amplitude (or the voltage value in the case of DC)
changes to the amplitude (or voltage value in the case of DC) that was set. ([NUM] key is
unlit.)
Example
Setting the amplitude to 1.23 V
Press the [NUM] key to cause it to illuminate, and then press the [1], [.], [2], [3] and [V] keys in
sequence.
(In other words, press [sin], [DUTY], [square], [pulse] and then [Amp>].)
When a numeric value that exceeds the setting range is set:
The operational error message 1: !UPPER LIMIT! appears if the voltage value setting
exceeds the upper limit, and the operational error message 1: !LOWER
LIMIT!
appears if the voltage value setting exceeds the lower limit; then the value is set to the respective
upper or lower limit value of the selected waveform.
 30 
3.4
Waveform Output Method
3.4.1 OUTPUT Channel
Press the [CH] key to select the channel to
change the desired settings.
If no waveform is output even when the [ON] key is illuminated, check the following
“About Generation Modes.”
Check the settings of OUTPUT CONTROL in the system menu.
Pushing the [ON] key to either of CH can be turned on and off:
EACH ; OUTPUT of the each channel is independently turn on and off
BOTH ; When either channel is switched, both channels are turn on and off at the
same time.
Check the generation mode of OUTPUT CONTROL in the system menu.
EACH : While both CH turned on, pushing the [CONT] key again synchronizes both
CH. (Skew operation)
BOTH : Both CH can be turned on and off always synchronously.
3.4.2 About Generation Modes
This instrument has the following 3-generation modes. Pressing any one of the
generation mode keys illuminates its key, which causes the generation to switch to the
corresponding generation mode. Each channel can be set independently. (Other
generation mode keys are unlit.)
Synchronous output (SYNC OUT) can be turned on and off by the system menu.
Refer to chapter 3.15.7 “synchronous output (SYNC OUT)”
Generation Mode
Continuous Generation Mode
Gate Generation Mode
Triggered Generation Mode
Corresponding Key
[CONT] key
[GATE] key
[TRIG] key
(1) Continuous Generation Mode ([CONT] key is illuminated)
This mode outputs a continuous waveform.
When the [ON] key is illuminated, a waveform is output from this instrument.
(2) Gate Generation Mode ([GATE] key is illuminated)
 31 
Controlled by external signal input or key operation, this mode generates the waveform only
during the interval while the gate is open.
When the gate is open and the [ON] key is illuminated, a waveform is output from this
instrument. (Refer to chapter 3.13.2, “Generation Control by External Signal.”)
(3) Triggered Generation Mode ([TRIG] key is illuminated)
Controlled by external signal input or key operation, this mode generates the waveform
when a valid trigger is input.
If a valid trigger is captured while the [ON] key is illuminated, a waveform is output from this
instrument. (Refer to chapter 3.13.1, “Generation Control by External Signal.”)
 32 
3.5
Offset Setting
Using the [OFS] key, an offset can be added to the waveform.
While the [OFS] key is illuminated, the offset setting is valid and the offset is added to the
output waveform.
While the [OFS] key is turned off, the offset setting is invalid and an offset is not added to
the output waveform.
3.5.1 Offset setting procedure
Press the [CH] key to select the channel to
change the desired settings.
(1) Press the [OFS] key.
The display enters the offset/duty-factor setting display mode. (Refer to chapter 2.4, “Display
Modes,” section (2), “Offset, Duty-factor Setting Modes.”)
(VFD)1: OFS P###V XXX
In the above fluorescent display, press the [→] key or [←] key to cause XXX to blink.
(2) Operate the [↑] key, [↓] key, or frequency knob to set XXX to ON.
(VFD)1: OFS P###V ON (The “ON” characters are blinking.)
When set to ON, the offset setting becomes valid.
(3) When the OFS setting is a value other than zero volts, the [OFS] key is illuminated and the
offset is added to the waveform.
Press the [→] key to cause P### to illuminate. (One digit within P###V will blink.)
(VFD)1: OFS P###V ON
(4) Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit, and operate the [↑] key,
[↓] key or frequency knob to set the desired value of each digit. (In this case, the offset
changes in real-time.)
Setting range
: Range of｜offset voltage｜ + amplitude/2 ≦ 5.025 V
(when there is a 50Ω termination)
Setting resolution : 3 digits (minimum 1 mV)
Direct input via the 10-key is also possible. (Refer to chapter 2.5, “Numeric Input of Setting
Values.”)
For example, in the case where it is desired to set an offset of 10 mV, press the [NUM] key to
cause it to illuminate, and then press the [1], [0] and [mV] keys in sequence.
 33 
Then (VFD)1: OFS +10mV ON appears.
In the case where the setting value is 0 V, since there is no offset, the [OFS] key is unlit even
if the right edge field of the display is ON.
(5) Press the [MENU] key to return to the normal display mode.
When (VFD)1: OFS P###V OFF appears, the setting value is ignored and operation is the
same as when the offset is 0. (Even when it is OFF, the actual operation of setting the offset
voltage can be performed.)
3.5.2 Caution
・ When DC output has been selected for the waveform, it is not possible to enter the OFFSET
setting menu. Attempting to do so will cause an error beep to sound and the operational
error message appears.
!
I
N
V
A
L
I
D
I
To disable the offset
Follow steps (1) to (2), (VFD)1: OFS P###V OFF appears.
 34 
N
D
C
!
3.6
Duty-Factor Setting
Using the [DUTY] key, the duty-factor of the waveform can be set.
Illuminated [DUTY] key indicates that the duty-factor setting is ON.
(This key is illuminated when the setting for square waves and pulse waves is a value
other than 50.0% or when the setting for ramp waves is a value other than 100.0%.)
[Example] Comparison of duty-factors
3.6.1 Duty-Factor Setting Steps
Press the [CH] key to select the channel to
change the desired settings.
(1) Press the [DUTY] key.
The display enters the offset/duty-factor setting display mode. (Refer to chapter 2.4,
“Display Modes,” section (2), “Offset, Duty-factor Setting Modes.”)
(VFD)1: DUTY ###% XXX
In the above fluorescent display, press the [→] key or [←] key to cause XXX to blink.
(2) Operate the [↑] key, [↓] key, or frequency knob to set XXX to ON.
(VFD)1: DUTY ###% ON (The “ON” characters are blinking.)
When set to ON, the duty setting becomes valid. When the DUTY setting of ### is a value
other than 50.0% (other than 100.0% in the case of a ramp wave), the [DUTY] key is
illuminated.
(3) Press the [→] key to cause ### to blink. (One digit within #### will blink.)
(VFD)1: DUTY ###% ON
 35 
(4) Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit, and operate the [↑] key,
[↓] key or frequency knob to set the desired value of each digit.
Setting ranges:
Square wave
40.0% to 60.0%
(over 5 MHz, 15 MHz and below)
Square wave (5 MHz and below)
20.0% to 80.0%
(When the generation mode is TRIG or GATE, or when BURST is ON,
performance is guaranteed over the range of 1 MHz and below.)
Pulse wave, ramp wave
0.0% to 100.0%
Setting resolution:
0.1%
Direct input via the 10-key is also possible. With the duty-factor setting, the only valid units
key is the [ENT] key. (Refer to chapter 2.5, “Numeric Input of Setting Values.”)
For example, in the case where it is desired to set a 30% duty-factor, press the [NUM] key to
cause it to illuminate, and then press the [3], [0] and [ENT] keys in sequence, and
(VFD)1: DUTY 30.0% ON appears.
(5) Press the [MENU] key to return to the normal display mode.
3.6.2 Operational error message and Caution
When sine wave, triangular wave, or DC is selected, the duty-factor cannot be set.
(1) When sine wave, triangular wave or DC is selected, pressing the [DUTY] key causes an
error beep to sound and the corresponding operational error message below to be
displayed.
Invalid DUTY setting operational error message (in the case of a sine wave)
1:
!
I
N
V
A
L
I
D
I
N
S
I
N
!
Invalid DUTY setting operational error message (in the case of a triangular wave)
1:
!
I
N
V
A
L
I
D
I
N
T
R
I
!
D
C
!
Invalid DUTY setting operational error message (in the case of DC)
1:
!
I
N
V
A
L
I
D
I
N
When (VFD)1: DUTY ###% OFF appears, setting values are ignored. (Even when it is OFF,
the actual operation of setting the duty-factor can be performed.)
 36 
When the setting value is the same as the initial value, the “DUTY” key will not be illuminated
even if the field at the right side of the display is ON.
Duty-factor initial values
Square wave, pulse wave
50%
Ramp wave
100%
A ramp wave with 100.0% duty factor has the following waveform.
Values of the duty-factor settings for square waves, pulse waves and ramp waves are saved
individually. When a waveform is selected, individual setting values are applied.
(2) While a pulse wave, triangular wave or ramp wave is being output in the gate or triggered
generation modes, if the duty-factor changes during generation, the waveform output is
terminated and then the trigger wait state is entered. When the next trigger is captured, a
waveform is output with the duty-factor that has been set.
Also refer to chapter 3.13, “Generation Control by External Signal.”
Waveform output and offset/duty (enable = can be set, - - - = cannot be set)
Duty
Offset
--enable
enable
enable
enable
enable
--enable
enable
enable
---
---
 37 
---
---
enable
enable
3.7
Initial Phase Setting (PHA Menu)
Setting of the initial phase is performed in the menu mode. (Refer to chapter 2.4,4
“Display Modes, section (3), “Menu Mode.”)
Setting of the initial phase can be performed in the PHA menu of the menu mode.
* The phase value set here is utilized for the generating the phase of start or stop
during the TRIG mode, GATE mode, BURST generation and SWEEP mode. (Not
utilized for generation stop phase via the [ON] key.)
3.7.1 Initial Phase Setting Steps
Press the [CH] key to select the channel to
change the desired settings.
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the PHA mode.
Operate the [↑] key, [↓] key or frequency knob to display
(VFD)1: PHA XXX +/-####° .
(The “PHA” characters are blinking.)
Press the [→] key to cause XXX to blink.
(VFD)1: PHA XXX +/-####°
(3) Change the setting to ON.
Operate the [↑] key, [↓] key or frequency knob to display
(VFD)1: PHA ON
+/-####° .
(The “ON” characters are blinking.)
When (VFD)1: PHA OFF +/-####° appears, the setting value is invalid and operation is
the same as when the initial phase is 0°.
(4) Press the [→] key to cause +/-### to blink. (One digit within P#### will blink.)
(VFD)1: PHA ON
+/-####°
(5) Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit, and operate the [↑] key,
[↓] key or frequency knob to set the desired value of each digit.
Setting range : −359.9° to 359.9°
 38 
Direct input via the 10-key is also possible. (Refer to chapter 2.5, “Numeric Input of Setting
Values.”)
For example, in the case where it is desired to set the initial phase 90°, press the [NUM] key
to cause it to become illuminated, and then press the [9], [0] and [ENT] keys in sequence,
and (VFD)1: PHA ON + 90.0° appears.
(6) Press the [MENU] key to return to the normal display mode.
Sine wave when initial phase is +/-90°
*
The initial phase setting becomes valid upon exiting the PHASE menu.
*
While DC is selected as being output the waveform, even if the initial phase setting is set to
ON, there is no effect.
 39 
3.8
Sweep Settings (SWEEP Menu)
This instrument can output a sweep waveform with sweeping frequency from a start
frequency to a stop frequency.
The operation of the sweep is different according to the type of the generation mode.
The chapter 3.8.1 to 3.8.3 explains the sweep operation, CONT, TRIG, GATE.
3.8.1 When the generation mode is continuous generation mode ([CONT] key is
illuminated)
Refer
to
chapter 3.8.5
“Rear panel”
output
SWEEP SYNC SIGNAL
SWEEP MARKER SIGNAL
SWEEP TIME
REPEAT TIME INTERVAL
START FREQUENCY
MARKER
FREQUENCY
STOP FREQUENCY
(1) Pressing the [MENU] key to exit the SWEEP menu will automatically start the generation.
Each item in the above figure is set in the sweep menu.
The factory default settings for sweeping are as follows.
Sweep setting items
Sweep mode
Sweep time
Repeat time interval
Start frequency for sweeping
Stop frequency for sweeping
Marker frequency
Generation type after sweep ends
Menu
MODE
TIME
INT
START
STOP
MARK
TYPE
Factory default settings
LINEAR
100 ms
200 ms
1.0000 kHz
10.000 kHz
5.0000 kHz
CONTNUE
(2) Sweep stop interval and TYPE
Generation TYPE after a sweep is ended is set as follows.
Operation of the * parts in the above figure will differ depending upon the generation TYPE
setting after the sweep has been stopped.
CONTNUE
STOP
* part continues generation at the post-sweep frequency.
* part stops generation. (Stops at the phase which was set in the PHA
menu.)
(3.7 Refer to the PHA menu)
 40 
3.8.2 When the generation mode is triggered generation mode ([TRIG] key is
illuminated)
<In the below figure, TRIGSEL POLARITY is set to +>
SIGNAL INPUT
Refer
to
chapter 3.8.5
“Rear panel”
output
SWEEP SYNC SIGNAL
SWEEP MARKER SIGNAL
SWEEP TIME
START FREQUENCY MARKER
FREQUENCY
STOP FREQUENCY
(1) Sweep starts when a TRIG signal is input to the TRIG1/GATE1 or TRIG2/GATE2 input, on
the rear panel. However, specified by the TRIGSEL menu. TRIG signals input during a
sweep are ignored.
(2) If TRIG is set in the TRIGSEL menu, the sweep will also start manually when the [MAN] key
on the front panel is pressed.
Each item in the above figure is set in the sweep menu.
The factory default settings for sweeping are as follows.
Sweep setting items
Sweep mode
Sweep time
Repeat time interval
Start frequency for sweeping
Stop frequency for sweeping
Marker frequency
Generation type after sweep ends
Menu
MODE
TIME
INT
START
STOP
MARK
TYPE
Factory default settings
LINEAR
100 ms
200 ms
1.0000 kHz
10.000 kHz
5.0000 kHz
CONTNUE
(3) Sweep stop interval and TYPE
Generation TYPE(CONTNUE, STOP) after a sweep is ended is set as follows.
Operation of the * parts in the above figure will differ depending upon the generation TYPE
setting after the sweep has been stopped.
SWEEP starts if the trigger signal is input for the trigger generation mode. The menu for
sweep parameter INT is ignored.
CONTNUE
STOP
* part continues generation at the post-sweep frequency.
* part stops generation. (Stops at the phase which was set in the PHA
menu.)
(3.7 Refer to the PHA menu)
 41 
3.8.3 When the generation mode is gate mode ([GATE] key is illuminated)
<In the below figure, TRIGSEL POLARITY is set to +>
Refer
to
chapter 3.8.5
“Rear panel”
output
(1) Sweep starts when a GATE signal is input to the either input of the TRIG1/GATE1 or
TRIG2/GATE2 on the rear panel, specified in the TRIGSEL menu. (Refer to 3.13 the
TRIGSEL menu.)
(2) When TRIG1 is specified in the TRIGSEL menu and if the [MAN] key is pushed, generation
starts and will be maintained during the interval while the [MAN] key is pushed.
(After the generator reaches the sweep end frequency, the frequency is maintained. )
(3) Even if the stop frequency for sweeping is reached, during the interval while a GATE signal
is input, the generator will be maintained at the stop frequency for sweeping. Generation
stops (however, when the sweep time is LINEAR SWEEP of 1s or more, stops at once.)
when the GATE signal is discontinued.
(4) When the sweep mode is “log”, if the GATE signal is discontinued during the sweep interval,
the sweep is terminated. The next time a GATE signal is input, sweep starts from the
beginning.
(5) When the sweep mode is “linear”, if the GATE signal is discontinued during the sweep
interval, the sweep is terminated. However, the next time a GATE signal is input, the sweep
may start from a midway point.
Each item in the above figure is set in the sweep menu.
The factory default settings for sweeping are as follows.
Sweep setting items
Sweep mode
Sweep time
Repeat time interval
Start frequency for sweeping
Stop frequency for sweeping
Marker frequency
Generation type after sweep ends
Menu
MODE
TIME
INT
START
STOP
MARK
TYPE
 42 
Factory default settings
LINEAR
100 ms
200 ms
1.0000 kHz
10.000 kHz
5.0000 kHz
CONTNUE
(6) When the generation mode is gate mode, whether generation will continue or stop in the
SWEEP mode is performed by the gate signal so that TYPE and INT, the menus for the sweep
parameters, are ignored.
3.8.4 Sweep settings steps
Sweep settings are performed in the SWEEP menu of the menu mode. (Refer to chapter 2.4,
“Display Modes,” section (4), “Menu Mode.”)
The sweep can be set in the SWEEP mode.
The display is the normal display mode; the amplitude is shown on the left side, and the
frequency is shown on the right side. When the sweep is ON, the frequency display is as follows.
・ When the sweep time is less than 1 sec, the start frequency and stop frequency for
sweeping are displayed alternately.
・ When the sweep time is 1 s or more,
time, displayed.
the current frequency is monitored and, at the same
Press the [CH] key to select the channel to
change the desired settings.
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the SWEEP menu.
Operate the [↑] key, [↓] key or frequency knob to display (VFD)1: SWEEP XXX ??? .
(The “SWEEP” characters are blinking.)
Press the [→] key to cause XXX to blink.
(VFD)1: SWEEP XXX ???
Display of ???
When XXX is OFF:
Nothing is displayed.
When XXX is ON:
MORE→ is displayed.
(3) Change the setting to ON.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: SWEEP ON MORE→ .
(The “ON” characters are blinking.)
(4) Enter the SWEEP detail menu and set each sweep item.
Press the [→] key to enter the SWEEP detail menu. (VFD)1: MODE XXX appears.
(The “MODE” characters are blinking.)
 43 
(a) Sweep mode setting
Selects linear sweep or log sweep.
Selection values: LINEAR or LOG (linear sweep or log sweep)
Operate the [↑] key, [↓] key or the frequency knob to display (VFD)1: MODE XXX . (The
“MODE” characters are blinking.)
Press the [→] key to cause XXX to blink.
(VFD)1: MODE XXX (The “XXX” characters are blinking.)
Operate the [↑] key, [↓] key or the frequency knob to select the desired sweep mode
(LINEAR or LOG). Press the [←] key to cause the MODE characters to blink.
Press the [←] key to cause MODE to blink.
(b) Start frequency setting for sweeping
Sets the frequency that starts the sweep.
Setting range:
sine wave, square wave
10 mHz to 15.0000 MHz
pulse wave, ramp wave, triangular wave 10 mHz to 100.000 kHz
ARB
10mHz to 1.6MHz
When the setting of FREQ-RANGE in the SYSTEM menu is
SLOW, the setting range of all waveforms is 1mHz to 100kHz.
Valid number of digits: 6 digits (minimum resolution 10 mHz)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: START #####Hz .
(The “START” characters are blinking.)
Press the [→] key to cause ##### to blink. (One digit within ##### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit, and operate the [↑] key,
[↓] key or frequency knob to set the desired value of each digit.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause START to blink.
(c) Stop frequency setting for sweeping
Sets the frequency that stops the sweep. The setting range is the same as the range of the
start frequency for sweeping.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: STOP #####Hz .
(The “STOP” characters are blinking.)
 44 
Press the [→] key to cause ##### to blink. (One digit within ##### will blink.)
Set the numeric value by moving the position of the blinking digit.
The setting method is the same as (b), “Start frequency setting for sweeping.”
Press the [←] key to cause STOP to blink.
*
Whether the sweep is an UP or DOWN sweep is determined according to the relative sizes
of the start frequency and stop frequency for sweeping. If the start frequency for sweeping =
stop frequency for sweeping, there is no real sweep.
(d) Sweep time setting
Sets the time from the sweep start until the sweep stop.
Setting range : 1 ms to 500 s
In the case where the SWEEP MODE is linear and the sweep is a DOWN sweep, the
following restrictions are placed on the sweep time according to the Stop frequency for
sweeping.
Stop frequency for sweeping
High-speed mode
Low-speed mode
Sweep time
≥ 2/Stop frequency for sweeping (Hz)
≤ 0.1/Frequency (Hz)
Valid number of digits : 3 digits (minimum resolution 1 ms)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: TIME #####s .
(The “TIME” characters are blinking.)
Press the [→] key to cause #####s to blink. (1 digit with ##### will blink.)
Set the numeric value by moving the position of the blinking digit.
The setting method is the same as (b), “Start frequency setting for sweeping,” only the units
are different.
Press the [←] key to cause TIME to blink.
(e) Repeat time interval setting
Sets the repeat time interval for the sweep.
Setting range : 1 ms to 500 s
If the sweep time and repeat time are set to the same time, the repeat time may in some
cases be twice as long.
Valid number of digits : 3 digits (minimum resolution 1 ms)
Operate the [↑] key, [↓] key or the frequency knob to display
 45 
(VFD)1: INT #####s .
(The “INT” characters are blinking.)
The setting method is the same as (d), “Sweep time setting.”
Press the [←] key to cause INT to blink.
(f) Selection of generation type after sweep completion
Sets whether generation will continue or stop after completion of the sweep (after arriving at
the stop frequency for sweeping).
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: TYPE ##### .
(The “TYPE” characters are blinking.)
Press the [→] key to cause ##### to blink, and then select CONTNUE (continue generation)
or STOP (stop generation).
If the [↑] key, [↓] key or the frequency knob is operated to select
(VFD)1: TYPE CONTNUE , generation will continue even after the sweep is completed.
If the [↑] key, [↓] key or the frequency knob is operated to select
(VFD)1: TYPE STOP , generation will stop after the sweep is completed.
Press the [←] key to cause TYPE to blink.
(g) Marker frequency setting
Sets a marker frequency for the sweep. Also refer to “2.6 Rear panel output”.
Setting range:
Start frequency for sweeping ≦ Marker frequency ≦ Stop frequency for sweeping, or
Start frequency for sweeping ≧ Marker frequency ≧ Stop frequency for sweeping
If outside the setting range, the marker setting will take the value of either the start frequency
or stop frequency for sweeping, whichever is closer.
Valid number of digits : 6 digits (minimum resolution 10m Hz)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) MARK #####Hz.
(The “MARK” characters are blinking.)
Press the [→] key to cause #####Hz to blink. (One digit within ####X will blink.)
Set the numeric value by moving the position of the blinking digit.
The setting method is the same as (b), “Start frequency setting for sweeping.”
Press the [←] key to cause MARK to blink.
(5) Pressing the [MENU] key un-illuminates this key. Then (VFD) ! SETTING ! and “the normal
display mode” appears.
 46 
Pressing the [BACK] key during the SWEEP detail menu, or pressing the [←] key while
items on the left side of the SWEEP detail menu are blinking, causes a return to the SWEEP
menu.
・ Even in any case as follows, sweep settings are valid upon exiting the SWEEP menu.
At the same time, the SWEEP status LED will become illuminated.
■
When the [↑] key, [↓] key or the frequency knob is operated to enter another
menu while SWEEP is blinking.
■
When pushing the [MENU] key causes the normal display mode appears.
3.8.5 Rear panel output
SWEEP SYNC OUTPUT /SWEEP MARKER OUTPUT
While sweep is ON, the SWEEP SYNC signal and SWEEP MARKER signal are output.
・SWEEP SYNC OUTPUT : Outputs a “H” level TTL signal from the rear panel during the
transition interval from the start frequency for sweeping until the
stop frequency for sweeping.
・SWEEP MARKER OUTPUT:
Outputs a “H” level TTL signal from the rear panel during the
transition interval from the start frequency for sweeping until the
marker frequency.
3.8.6 SWEEP OFF Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the SWEEP menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: SWEEP ON MORE→ .
(The “SWEEP” characters are blinking.)
Press the [→] key to cause XXX to blink.
(VFD) 1: SWEEP ON MORE→ .
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: SWEEP OFF .
(The “OFF” characters are blinking.)
(4) Pushing the [MENU] key causes SWEEP to set OFF and a return to the normal display
mode, at the same time, the SWEEP status LED will be unlit.
 47 
3.8.7 Operational error message and Caution
(1) Operational error message
While the BURST, modulations except AM or BANK setting is “ON”, SWEEP cannot be set
to “ON.”
If SWEEP is set to “ON” while the BURST, modulations except AM or BANK setting is “ON”,
a operational error message (shown below) appears for 1 second and then BURST,
modulations or BANK is forcibly set to “OFF.”
If the SWEEP setting is returned to “OFF” after the operational error message appears, the
BURST, modulations except AM or BANK setting will remain “ON.”
Case where SWEEP is set to “ON” while BURST is “ON”:
1:
!
B
U
R
S
T
O
N
→
O
F
F
!
Case where SWEEP is set to “ON” while modulations except AM is “ON”:
1:
!
M
O
D
U
O
N
→
O
F
F
!
→
O
F
F
!
Case where SWEEP is set to “ON” while BANK is “ON”:
1:
*
!
B
A
N
K
O
N
SWEEP cannot be set to “ON” while the waveform is selected as DC or NOISE.
If an attempt is made to set SWEEP to “ON” while the waveform is DC or NOISE, an error
beep is sounded and the operational error message appears.
1:
!
S
W
E
E
P
D
I
S
A
B
L
E
!
However, when the setting of the menu is saved, and if the waveform is set to except DC or
NOISE, the setting of SWEEP is turned on.
(2) Caution
When sweep is operated under the following types of conditions, amplitude distortion may occur
immediately after starting a sweep or immediately prior to completion of a sweep, however this is
not a malfunction.
(a) UP sweep
Generation type (TYPE) after the sweep is ended is “STOP.”
Stop frequency for sweeping (STOP) is between 1 and 15 MHz.
With the above types of conditions, amplitude distortion may occur in the last cycle
immediately prior to completion of the sweep.
 48 
(b) Generation type (TYPE) after the sweep is ended is “CONTNUE.”
Either the start frequency for sweeping (START) or the stop frequency for sweeping (STOP)
is in the range of 1 to 15 MHz.
With the above types of conditions, amplitude distortion may occur immediately after sweep
restarts.
Even when the generation type (TYPE) after the sweep is ended is “STOP”, similar
phenomenon may be observed if due to the triggered generation mode or gate generation
mode, the sweep stop timing and next sweep start timing are close to one another.
(c) SWEEP TIME might not become accurate in the following conditions.
In that case, please shorten SWEEP TIME.
* High-speed mode
STARTfrequency( Hz ) − STOPfrequency ( Hz )
2
< SWEEP TIME ( s )
* Low-speed mode
STARTfrequency( Hz ) − STOPfrequency ( Hz )
0.02
（Refer to chapter 3.15.6 FREQ-RANG）
 49 
< SWEEP TIME ( s )
3.9
Burst Settings (BURST Menu)
This instrument can output a waveform as a burst generation. Generation starts and
stops at the phase set in the initial phase setting menu. (Refer to chapter 3.7, Initial
Phase Setting.”)
Sine wave with burst setting
Square wave with burst setting
The burst can be set in the BURST menu of the menu mode. (Refer to chapter 2.4,
“Display Modes,” section 2.4.4, “Menu Mode.”)
3.9.1 Burst Settings Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the BURST menu.
Operate the [↑] key, [↓] key or the frequency knob to display (VFD) 1: BURST XXX .
(The “BURST” characters are blinking.)
Press the [→] key to cause XXX to blink. (VFD) 1: BURST XXX
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: BURST ON MORE→ .
(The “ON” characters are blinking.)
(4) Enter the BURST detail menu and set each burst item.
Press the [→] key to enter the BURST detail menu. (VFD)1: ON-COUNT ##### appears.
(The “ON-COUNT” characters are blinking.)
(a) Set the BURST ON wave count
Set the burst generation interval with a wave count (integer value).
Setting range: 1 to 65536 (setting resolution: 1)
 50 
・ Press the [→] key to cause ##### to blink. (One digit within ##### will blink.)
・ Set the numeric value by moving the position of the blinking digit.
・ Press the [FREQ >] and [FREQ <] keys to move the blinking digit, and operate the [↑] key,
[↓] key or frequency knob to set each digit to the desired numeric value.
Direct input via the 10-key is also possible. (Refer to chapter 2.5, “Numeric Input of Setting
Values.”)
・ Press the [←] key to cause ON-COUNT to blink.
(b) Set the BURST OFF wave count
Set the burst off interval with a wave count (integer value).
Operate the [↑] key, [↓] key or the frequency knob to display (VFD)1: OFF-COUNT ##### .
(The “OFF-COUNT” characters are blinking.)
Setting range: 1 to 65536 (setting resolution: 1)
・ Press the [→] key to cause #### to blink. (One digit within #### will blink.)
・ Set the numeric value by moving the position of the blinking digit.
・ The setting method is the same as that for the BURST ON wave count.
(5) Pressing the [MENU] key un-illuminates this key. Then (VFD) 1:! SETTING ! and “the
normal display mode” appears.
Pressing the [BACK] key during the BURST detail menu, or pressing the [←] key while items
on the left side of the BURST detail menu are blinking, causes a return to the BURST menu.
・ Even in any case as follows, burst settings are valid upon exiting the BURST menu.
At the same time, the BURST status LED will become illuminated.
■
When the [↑] key, [↓] key or the frequency knob is operated to enter another
menu while BURST is blinking.
■
When pushing the [MENU] key causes a return to the normal display mode.
3.9.2 BURST OFF Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the BURST menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: BURST ON MORE→ .
(The “BURST” characters are blinking.)
Press the [→] key to cause ON to blink.
 51 
(VFD) 1: BURST ON MORE→ .
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: BURST OFF .
(The “OFF” characters are blinking.)
(4) Pushing the [MENU] key causes BURST to set OFF and a return to the normal display mode,
at the same time, the BURST status LED will be unlit.
3.9.3 Operational error message and Caution
(1) Operational error message
While the BURST, modulations except AM or BANK setting is “ON”, SWEEP cannot be set
to “ON.”
If SWEEP is set to “ON” while the BURST, modulations except AM or BANK setting is “ON”,
a operational error message (shown below) appears for 1 second and then BURST,
modulations or BANK is forcibly set to “OFF.”
If the SWEEP setting is returned to “OFF” after the operational error message appears, the
BURST, modulations except AM or BANK setting will remain “ON.”
Case where BURST is set to “ON” while SWEEP is “ON”:
1:
!
S
W
E
E
P
O
N
→
O
F
F
!
Case where BURST is set to “ON” while the each modulation is “ON”:
1:
!
M
O
D
U
O
N
→
O
F
F
!
→
O
F
F
!
Case where BURST is set to “ON” while BANK is “ON”:
1:
*
!
B
A
N
K
O
N
BURST cannot be set to “ON” while the waveform is selected as DC or NOISE.
If an attempt is made to set BURST to “ON” while the waveform is DC or NOISE, an error
beep is sounded and the operational error message appears.
1:
*
!
B
U
R
S
T
D
I
S
A
B
L
E
!
BURST cannot be set to “ON” while the generation mode is the gate generation mode.
If an attempt is made to set BURST to “ON”, an error beep is sounded and the operational
error message appears.
1:
!
B
U
R
S
T
D
I
S
A
B
L
E
!
For further information regarding the gate generation mode, refer to chapter 3.4.1, “About
Generation Modes” and chapter 3.13.2, “Gate Controlled Generation.”
 52 
3.9.4 Generation Modes and Burst Operation:
(1) When the generation mode is continuous generation mode ([CONT] is illuminated):
Example: ON wave count＝4 BURST OFF wave count＝3
BURST ON waveform
BURST OFF waveform
As can be seen in the figure, the waveform generates for the number of cycles set with the
BURST ON wave count and then generation stops for the number set with the BURST OFF
wave count.
(2) When the generation mode is triggered generation mode ([TRIG] is illuminated):
Example: ON wave count＝4
TRIG/GATE signal input
As can be seen in the figure, each time a trigger signal is input to the TRIG1/GATE1 or
TRIG2/GATE2, set in the TRIGSEL menu, the waveform generates for the number of cycles
set with the BURST ON wave count. (Refer to chapter 3.13 TRIGSEL menu)
A trigger signal input during burst generation will be ignored.
If TRIG1 is set in the TRIGSEL menu, burst generation can also be implemented manually
by pressing the [MAN] key on the front panel.
The BURST OFF wave count setting will be ignored.
When the waveform is selected as sine wave or square wave and BURST is ON,
performance is guaranteed over the frequency range of 10 mHz to 1 MHz.
BURST signal cannot occur when the generation mode is a gate generation mode.
 53 
3.10 Modulation Settings (MODU Menu)
This instrument can output AM, FM, PM, PWM, FSK, PSK, and the pulse motor modulation
using SIN,SQUR,TRI,RAMP,PULS and ARB as a modulating waveform.
The pulse motor modulation is necessary option (SG-507).
Press the [CH] key to select the channel to
change the desired settings.
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the MODU menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU XXX ??? .
(The “MT-MODU” characters are blinking.)
Press the [→] key to cause XXX to blink. (VFD) 1: MT-MODU XXX ???
Display of ???
When XXX is OFF:
Nothing is displayed.
When XXX is ON:
MORE→ is displayed.
(3) Selecting the type of the modulation
Operate the [↑] key, [↓] key or the frequency knob to select from AM, FM, PM, PWM, FSK,
PSK, and MT and to display (VFD) 1: MODU XXX MORE→ .
(The “ON” characters are blinking.)
Note: MT appears only when pulse motor control option (SG-507) is installed.
(4) Pressing the [MENU] key un-illuminates this key. Then
(VFD) 1:! SETTING ! and “the normal display mode” appear again.
If the [→] key is pushed after step (3) causes the display to enter the MODU detailed menu
corresponding to various modulations, and a detailed setting can be done.
(Refer chapter 3.10.1 AM modulation to 3.10.7 Pulse motor modulation. )
Pressing the [BACK] key during the MODU detail menu, or pressing the [←] key while items
on the left side of the MODU detail menu are blinking, causes a return to
(VFD) 1: MODU-ON MORE→ .
・ Even in any case as follows, modulation settings are valid upon exiting the modulation
menu.
 54 
At the same time, the MODU status LED will become illuminated.
■
When the [↑] key, [↓] key or the frequency knob is operated to enter another
menu while MODU is blinking.
■
When pushing the [MENU] key causes a return to the normal display mode.
Operational error message and Caution
(1) Operational error message
While the BURST, modulations except AM or BANK setting is “ON”, SWEEP cannot be set
to “ON.”
If SWEEP is set to “ON” while the BURST, modulations except AM or BANK setting is “ON”,
a operational error message (shown below) appears for 1 second and then BURST,
modulations or BANK is forcibly set to “OFF.”
If the SWEEP setting is returned to “OFF” after the operational error message appears, the
BURST, modulations except AM or BANK setting will remain “ON.”
If MODU is “ON” while BURST is set to “ON”:
1:
!
B
U
R
S
T
O
N
→
O
F
F
!
O
N
→
O
F
F
!
If MODU is “ON” while BANK is set to “ON”:
1:
!
M
O
D
U
Generation mode and Modulation
ON/OFF
(enable: can be set, - - -:can not be set)
Modulation
Generation mode
CONT
TRIG
GATE
AM
FM
PM
PWM
FSK
PSK
MT
enable
enable
enable
enable
enable
enable
---
---
---
---
---
---
enable
enable
enable
enable
enable
enable
enable
enable
---
(Note)
If an attempt is made to set the generation mode to “ON” with the above-mentioned
combination, an error beep is sounded for 1 second and the operational error message
(shown below) appears.
However, if the setting of the modulation menu remains “ON.” when the generation mode is
changed, the modulation is changed into ON again
1: !
M
O D
U
D
I S A B L E
Note: Generation mode automatically changes into CONT.
Waveform output and Modulation ON/OFF
 55 
!
If the PWM modulation and the pulse motor modulation are set to ON, the waveform output
automatically changes into the pulse wave
If an attempt is made to set the modulations other than PMW and the pulse motor
modulations to “ON” while the waveform is DC or NOISE, an error beep is sounded and the
operational error message appears and each modulation becomes OFF.
However, if the setting of the modulation menu remains “ON.” when the generation mode is
changed, the modulation is changed into ON again
1: !
M
O
D
U
D
I
S
 56 
A B L E
!
3.10.1 AM Modulation
Waveform of output and modulating
(modulation depth)
Check the setting channel and press [CH] key to set the desired channel.
The setting channel 1: 1: MODU XXX ???→ , The setting channel 2: 2: MODU XXX ???→
Set XXX to AM in the MODE menu, (VFD) 1: MODU AM MORE→ .
Select each item (SOURCE, F=, DENSITY, SHAPE, DUTY) in the AM modulation related menu.
Press the [→] key to enter the AM detail menu and cause YYY to blink,
(VFD) 1: AM YYY ??? .
(1) Setting SOURCE of the modulating waveform
Select either waveform of the internal or external for the source of a modulating waveform.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1:AM SOURCE ??? .
 57 
(The “SOURCE” characters are blinking.)
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob to select INT or EXT.
(The “INT or EXT” characters are blinking.)
INT : The AM wave is varied by the internal modulating waveform
EXT : The AM wave is varied by the external modulating waveform from the external
modulation input (EXT MODE) on the rear panel.
(The external modulations is standard for the only AM modulation.)
Press the [←] key to cause SOURCE to blink.
(2) Setting frequency of the modulating waveform
This sets the modulating frequency.
If the SOURCE settings is EXT or the SHAPE settings is NOISE, the “F=” menu does not
display.
Setting range : 10 mHz to 1.00000 MHz
Valid number of digits : 6 digits (Minimum resolution 10mHz)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: AM F=
######Hz .
(The “F=” characters are blinking.)
Press the [→] key to cause ###### to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause F= to blink.
(3) Setting DENSITY
This sets the density (modulation depth).
Setting range : 0 to 120%
Setting resolution: 1%
DENSITY menu dose not appear when SOURCE is set to EXT. The Input voltage for the
external modulation automatically fixes the density. For example the +/- 2.4V input
generates 120% density. The +/- 2.0V input generates 100% density.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: AM DENSITY ###% .
 58 
(The “DENSITY” characters are blinking.)
Press the [→] key to cause ###% to blink. (One digit within ####% will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
(VFD) 1: AM DENSITY ### % .
Direct input via the 10-key is also possible. (Refer to chapter 2.5.2, “Numeric Input of Setting
Values.”)
For instance, to set the density to 10%, first press the [MEN] key. After illuminating the
[MENU] key, press in sequence each key; [1], [0], [ENT]. Then
(VFD) 1: AM DENSITY 1 0% appears.
Press the [←] key to cause DENSITY to blink.
(4) Setting SHAPE
SHAPE setting can be set while SOURCE is INT.
SIN: The modulating wave is an internal sine wave.
SQUR: The modulating wave is an internal square wave.
TRI: The modulating wave is an internal triangular wave.
RAMP: The modulating wave is an internal ramp wave.
PULS: The modulating wave is an internal pulse wave.
NOIS: The modulating wave is an internal noise wave
ARB: The modulating wave is an internal arbitrary wave
Note: This selected ARB number is set in the ARB menu (refer to chapter 3.12).
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: AM SHAPE ??? .
(The “SHAPE” characters are blinking.)
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob to select one of the shapes.
Press the [←] key to cause SHAPE to blink.
(5) Setting DUTY
If SOURCE is set to INT and if the modulating wave is set among SQUARE, RAMP and
PULSE, and DUTY of the modulating wave can be selected.
Setting range : 20 to 80% (at the modulating wave is square wave)
0.0% to 100.0% (at the modulating wave is pulse or ramp)
Setting resolution: 0.1%
 59 
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: AM DUTY ###% .
(The “DUTY” characters are blinking.)
Press the [→] key to cause ###% to blink. (One digit within ####% will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause DUTY to blink.
(6) Pressing the [MENU] key un-illuminates this key. Then
(VFD)
1:!
SETTING
!
and
“the
normal
Then MODU LED is illuminated and AM is set to ON.
display
mode”
appears.
(VFD) 1: MODU AM MORE→ reappears when you press the [BACK] key during the AM
detail menu, or when you press the [←] key while items on the left side of the AM detail menu
are blinking.
With operating the [↑] key, [↓] key or the frequency knob while the “MODU” characters are
blinking, if the menu is moved to the other menu or the [MENU] key is pressed, causes
(VFD) 1:! SETTING ! and “the normal display mode” appears. Then MODU LED is
illuminated and AM is set to ON.
The AM modulation is ineffective either if the generation mode is TRIG and/or the waveform
is NOISE or DC.
1:
!
M O
D
U
D I S
A B L E
!
An error beep is sounded and the operational error message appears for one second.
Please change the selective waveform or the generation mode. After those changes, the
modulation becomes effective.
AM modulation OFF Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the MODU menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU AM MORE→ .
(The “MODU” characters are blinking.)
 60 
Press the [→] key to cause XXX to blink, (VFD) 1: MODU AM MORE→ .
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU OFF .
(The “OFF” characters are blinking.)
(4) Pushing the [MENU] key causes MODU to set OFF and a return to the normal display
mode, at the same time, the MODU status LED will be unlit.
3.10.2 FM Modulation
Waveform of output and modulating
Check the setting channel and press [CH] key to set the desired channel.
The setting channel 1: 1: MODU XXX ???→ , The setting channel 2: 2: MODU XXX ???→
Set XXX to FM in the MODE menu, (VFD) 1: MODU FM MORE→ .
Select each item (SOURCE, C=, F=, D=, SHAPE, DUTY) in the FM modulation related wave.
Press the [→] key to enter the FM detail menu and cause YYY to blink.
(VFD) 1: FM YYY ???
(1) Setting SOURCE of the modulating waveform
The SOURCE menu can be set only having the option of the external modulation.
Select either waveform of the internal or external for the source of a modulating waveform.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: FM SOURCE ??? .
 61 
(The “SOURCE” characters are blinking.)
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob to select INT or EXT.
(The “INT or EXT” characters are blinking.)
INT : The FM wave is varied by the internal modulating waveform
EXT : The FM wave is varied by the external modulating waveform from the external
modulation input (EXT MODE) on the rear panel.
Press the [←] key to cause SOURCE to blink.
(2) Setting frequency of the carrier waveform
This sets the carrier frequency.
If the SOURCE settings is EXT or the SHAPE settings is NOISE, the “C=” menu does not
display.
Setting range : 10 mHz to 14.9999 MHz (Note 1)
Valid number of digits : 6 digits (Minimum resolution 10mHz)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: FM C=
######Hz .
(The “C=” characters are blinking.)
Press the [→] key to cause ###### to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause C= to blink.
If FM is set to ON, the setting frequency of the carrier waveform is displayed in the normal
displayed mode and the detail displayed mode. In FM mode, the carrier frequency and the
setting frequency in the normal displayed mode are equal.
(3) Setting frequency of the modulating waveform
This sets the modulating frequency.
If the SOURCE settings is EXT or the SHAPE settings is NOISE, the “F=” menu does not
display.
Setting range : 10 mHz to 100.000 kHz (Note 1)
Valid number of digits : 6 digits (Minimum resolution 10mHz)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: FM C=
######Hz .
 62 
(The “F=” characters are blinking.)
Press the [→] key to cause ###### to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause C= to blink.
(4) Setting the peak deviation frequency of the modulating waveform
This sets the peak deviation frequency.
Setting range : 10 mHz to 7.50000 MHz (Note 1)
Valid number of digits : 6 digits (Minimum resolution 10mHz)
If SOURCE is EXT and ±2.0V for the external modulation is input, FM wave is modulated by
the corresponding peak deviation frequency.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: FM D=
######Hz .
(The “D=” characters are blinking.)
Press the [→] key to cause ###### to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause D= to blink.
Note (1) Peak deviation and Carrier in the allowable Range
Carrier Wave
Allowable Frequency Range
High speed mode ( Refer to chapter 3.15.6 "Frequency range of system menu". )
Sine and Square
Peak deviation +Carrier generation≦15.0000MHz
and Peak deviation ≦ Carrier generation
Pulse, Lamp, and Triangular
Peak deviation + carrier generation≦100.000kHz
and Peak deviation ≦ Carrier generation
Arbitrary
Peak deviation + carrier generation≦1.60000MHz
and Peak deviation ≦ Carrier generation
Low-speed mode ( Refer to chapter 3.15.6 "Frequency range of system menu")
 63 
Sine, Square Pulse, Lamp,
Peak deviation + carrier generation≦100.000kHz
Triangular and Arbitrary
and Peak deviation ≦ Carrier generation
Returning to the normal display mode while FM modulation is effective, the frequency carrier is
displayed. In this case, when the frequency is changed, the carrier frequency is changed too.
(5) Setting SHAPE
SHAPE setting can be set while SOURCE is INT.
SIN:
The modulating wave is an internal sine wave.
SQUR:
The modulating wave is an internal square wave.
TRI:
The modulating wave is an internal triangular wave.
RAMP:
The modulating wave is an internal ramp wave.
PULS:
The modulating wave is an internal pulse wave.
NOIS:
The modulating wave is an internal noise wave
ARB:
The modulating wave is an internal arbitrary wave
Note:
This selected ARB number is set in the ARB menu (refer to chapter 3.12).
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: FM SHAPE ??? .
(The “SHAPE” characters are blinking.)
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob to select one of the shapes.
Press the [←] key to cause SHAPE to blink.
(6) Setting DUTY
If SOURCE is set to INT and the modulating wave is among SQUARE, RAMP and PULSE,
and DUTY of the modulating wave can be set.
Setting range : 20 to 80% (at the modulating wave is square wave)
0.0% to 100.0% (at the modulating wave is pulse or ramp)
Setting resolution: 0.1%
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: FM DUTY ###% .
(The “DUTY” characters are blinking.)
Press the [→] key to cause ###% to blink. (One digit within ####% will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
 64 
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause DUTY to blink.
(7) Return to the normal display mode
Pressing the [MENU] key un-illuminates this key. Then
(VFD)
1:!
SETTING
!
and
“the
normal
Then MODU LED is illuminated and FM is set to ON.
display
mode”
appears.
Pressing the [BACK] key during the MODU detail menu, or pressing the [←] key while items
on the left side of the FM detail menu are blinking, causes a return to
(VFD) 1: MODU FM MORE→ .
With operating the [↑] key, [↓] key or the frequency knob while the “MODU” characters are
blinking, if the menu is moved to the other menu or the [MENU] key is pressed, causes
(VFD) 1:! SETTING ! and “the normal display mode” appears. Then MODU LED is
illuminated and FM is set to ON.
Even if exiting the menu when the generation mode is TRIG and the waveform is NOISE or
DC, the FM modulation does not become effective.
1: !
M O
D
U
D I S
A B L E
!
An error beep is sounded and the operational error message appears for one second.
Please change the selective waveform or the generation mode. After those changes, the
modulation becomes effective.
FM modulation OFF Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the MODU menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU FM MORE→ .
(The “MODU” characters are blinking.)
Press the [→] key to cause FM to blink. (VFD) 1: MODU FM MORE→ .
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU OFF .
(The “OFF” characters are blinking.)
 65 
(4) Pushing the [MENU] key causes MODU to set OFF and a return to the normal display
mode, at the same time, the MODU status LED will be unlit.
3.10.3 PM Modulation
Waveform of output and modulating
Check the setting channel and press [CH] key to set the desired channel.
The setting channel 1: 1: MODU XXX ???→ , The setting channel 2: 2: MODU XXX ???→
Set XXX to PM in the MODE menu, (VFD) 1: MODU PM MORE→ .
Select each item (SOURCE, F=, MIN, MAX, SHAPE, DUTY) in the PM modulation related wave.
Press the [→] key to enter the PM detail menu and cause YYY to blink.
(VFD) 1: PM YYY ???
(1) Setting SOURCE of the modulating waveform
The SOURCE menu can be set only having the option of the external modulation.
Select either waveform of the internal or external for the source of a modulating waveform.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) PM SOURCE ??? .
(The “SOURCE” characters are blinking.)
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob to select INT or EXT.
(The “INT or EXT” characters are blinking.)
INT : The PM wave is varied by the internal modulating waveform
EXT : The PM wave is varied by the external modulating waveform from the external
modulation input (EXT MODE) on the rear panel.
 66 
Press the [←] key to cause SOURCE to blink.
(2) Setting frequency of the modulating waveform
This sets the modulating frequency.
If the SOURCE settings is EXT or the SHAPE settings is NOISE, the “C=” menu does not
display.
Setting range : 10 mHz to 100.000 kHz
Valid number of digits : 6 digits (Minimum resolution 10mHz)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PM F=
######Hz .
(The “F=” characters are blinking.)
Press the [→] key to cause ###### to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause F= to blink.
If PM is ON, the setting frequency of the carrier waveform is displayed with the normal
displayed mode and the detail displayed mode.
(3) Setting the minimum value of the phase deviation for modulating
This sets the minimum value of the phase deviation for modulating.
If the SOURCE settings is EXT or the SHAPE settings is NOISE, the “F=” menu does not
display.
Setting range : -359.9゜ to +359.9゜
Setting resolution: 0.1゜
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PM MIN
±####゜.
(The “MIN” characters are blinking.)
Press the [→] key to cause ±#### to blink. (One digit within ±####゜will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
 67 
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause MIN to blink.
(4) Setting the maximum value of the phase deviation modulating
This sets the phase deviation.
Setting range : -359.9゜ to +359.9゜
Setting resolution: 0.1゜
If SOURCE is set to EXT and if +2V is input into the external modulation, the phase is the
value previously set by the “MAX” menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PM MAX
±####゜.
(The “MAX” characters are blinking.)
Press the [→] key to cause ±#### to blink. (One digit within ±####゜will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause MAX to blink.
(5) Setting SHAPE
SHAPE setting can be set while SOURCE is INT.
SIN: The modulating wave is an internal sine wave.
SQUR: The modulating wave is an internal square wave.
TRI: The modulating wave is an internal triangular wave.
RAMP: The modulating wave is an internal ramp wave.
PULS: The modulating wave is an internal pulse wave.
NOIS: The modulating wave is an internal noise wave
ARB: The modulating wave is an internal arbitrary wave
Note: This selected ARB number is set in the ARB menu (refer to chapter 3.12).
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PM SHAPE ??? .
(The “SHAPE” characters are blinking.)
 68 
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob to select one of the shapes.
Press the [←] key to cause SHAPE to blink.
(6) Setting DUTY
This sets the duty-factor. If SOURCE is set to INT and the modulating wave is among
SQUARE, RAMP and PULSE, DUTY of the modulating wave can be set.
Setting range : 20 to 80% (at the modulating wave is square wave)
0.0% to 100.0% (at the modulating wave is pulse or ramp)
Setting resolution: 0.1%
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PM DUTY ###% .
(The “DUTY” characters are blinking.)
Press the [→] key to cause ###% to blink. (One digit within ####% will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
Values that exceed the setting range cannot be set. Direct input via the 10-key is
also possible. (Refer to chapter 2.5, “Numeric Input of Setting Values.”)
Through direct input via the 10-key, if a setting range is made which exceeds the setting
range, that setting becomes the value of either the upper limit and lower limit value, which is
closer.
Press the [←] key to cause DUTY to blink.
(7) Return to the normal display mode
Pressing the [MENU] key un-illuminates this key. Then
(VFD)
1:!
SETTING
!
and
“the
normal
Then MODU LED is illuminated and PM is set to ON.
display
mode”
appears.
Pressing the [BACK] key during the MODU detail menu, or pressing the [←] key while items
on the left side of the PM detail menu are blinking, causes a return to
(VFD) 1: MODU PM MORE→ .
With operating the [↑] key, [↓] key or the frequency knob while the “MODU” characters are
blinking, if the menu is moved to the other menu or the [MENU] key is pressed, causes
(VFD) 1:! SETTING ! and “the normal display mode” appears. Then MODU LED is
illuminated and PM is set to ON.
Even if exiting the menu when the generation mode is TRIG and the waveform is NOISE or
DC, the PM modulation does not become effective.
 69 
1: !
M
O D
U
D
I S A B L E
!
An error beep is sounded and the operational error message appears for one second.
Please change the selective waveform or the generation mode. After those changes, the
modulation becomes effective.
PM modulation OFF Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the MODU menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU PM MORE→ .
(The “MODU” characters are blinking.)
Press the [→] key to cause PM to blink. (VFD) 1: MODU PM MORE→ .
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU OFF .
(The “OFF” characters are blinking.)
(4) Pushing the [MENU] key causes MODU to set OFF and a return to the normal display
mode, at the same time, the MODU status LED will be unlit.
 70 
3.10.4 PWM Modulation
Waveform of output and modulating
Check the setting channel and press [CH] key to set the desired channel.
The setting channel 1: 1: MODU XXX ???→ , The setting channel 2: 2: MODU XXX ???→
Set XXX to PWM in the MODE menu, (VFD) 1: MODU PWM MORE→.
Select each item (SOURCE, F=, MIN, MAX, SHAPE, DUTY) in the PWM modulation related
wave.
Press the [→] key to enter the PWM detail menu and cause YYY to blink.
(VFD) 1: PWM YYY ???
(1) Setting SOURCE of the modulating waveform
The SOURCE menu can be set only having the option of the external modulation.
Select either waveform of the internal or external for the source of a modulating waveform.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PWM SOURCE ??? .
(The “SOURCE” characters are blinking.)
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob to select INT or EXT.
(The “INT or EXT” characters are blinking.)
INT : The PWM wave is varied by the internal modulating waveform
EXT : The PWM wave is varied by the external modulating waveform from the external
modulation input (EXT MODE) on the rear panel.
Press the [←] key to cause SOURCE to blink.
(2) Setting frequency of the modulating waveform
This sets the modulating frequency.
 71 
If the SOURCE settings is EXT or the SHAPE settings is NOISE, the “F=” menu does not
display.
Setting range : 10 mHz to 100.000 kHz
Valid number of digits : 6 digits (Minimum resolution 10mHz)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PWM F=
######Hz .
(The “F=” characters are blinking.)
Press the [→] key to cause ###### to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause F= to blink.
(3) Setting the minimum value of DUTY
Setting range : 1.0% to 99.0%
Setting resolution: 0.1%
If SOURCE is set to EXT and if –2V is input into the external modulation, DUTY is the value
previously set by the “MIN” menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PWM MIN
±####゜.
(The “MIN” characters are blinking.)
Press the [→] key to cause ±#### to blink. (One digit within ±####゜will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause MIN to blink.
(4) Setting the maximum value of DUTY
Setting range : 1.0% to 99.0%
Setting resolution: 0.1%
If SOURCE is set to EXT and if +2V is input into the external modulation, DUTY is the value
 72 
previously set by the “MAX” menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PWM MAX
±####゜.
(The “MAX” characters are blinking.)
Press the [→] key to cause ±#### to blink. (One digit within ±####゜will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause MAX to blink.
(5) Setting SHAPE
SHAPE setting can be set while SOURCE is INT.
SIN: The modulating wave is an internal sine wave.
SQUR: The modulating wave is an internal square wave.
TRI: The modulating wave is an internal triangular wave.
RAMP: The modulating wave is an internal ramp wave.
PULS: The modulating wave is an internal pulse wave.
NOIS: The modulating wave is an internal noise wave
ARB: The modulating wave is an internal arbitrary wave
Note: This selected ARB number is set in the ARB menu (refer to chapter 3.12).
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PWM SHAPE ??? .
(The “SHAPE” characters are blinking.)
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob to select one of the shapes.
Press the [←] key to cause SHAPE to blink.
(6) Setting DUTY
If SOURCE is set to INT and the modulating wave is among SQUARE, RAMP and PULSE,
DUTY of the modulating wave can be set.
Setting range : 20 to 80% (at the modulating wave is square wave)
 73 
0.0% to 100.0% (at the modulating wave is pulse or ramp)
Setting resolution: 0.1%
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PWM DUTY ###% .
(The “DUTY” characters are blinking.)
Press the [→] key to cause ###% to blink. (One digit within ####% will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause DUTY to blink.
(7) Return to the normal display mode
Pressing the [MENU] key un-illuminates this key. Then
(VFD)
1:!
SETTING
!
and
“the
normal
Then MODU LED is illuminated and PWM is set to ON.
display
mode”
appears.
If PWM is set to ON, the shape is set to PULSE automatically.
Pressing the [BACK] key during the MODU detail menu, or pressing the [←] key while items
on the left side of the PWM detail menu are blinking, causes a return to
(VFD) 1: MODU PWM MORE→ .
With operating the [↑] key, [↓] key or the frequency knob while the “MODU” characters are
blinking, if the menu is moved to the other menu or the [MENU] key is pressed, causes
(VFD) 1:! SETTING ! and “the normal display mode” appears. Then MODU LED is
illuminated and PWM is set to ON.
Even if exiting the menu when the generation mode is TRIG, the PWM modulation does not
become effective.
1:
!
M O
D
U
D I S A B L E !
An error beep is sounded and the operational error message appears for one second.
Please change the selective waveform or the generation mode. After those changes, the
modulation becomes effective.
PWM modulation OFF Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
 74 
(2) Enter the MODU menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU PWM MORE→ .
(The “MODU” characters are blinking.)
Press the [→] key to cause PWM to blink. (VFD) 1: MODU PWM MORE→ .
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU OFF .
(The “OFF” characters are blinking.)
(4) Pushing the [MENU] key causes MODU to set OFF and a return to the normal display
mode, at the same time, the MODU status LED will be unlit.
3.10.5 FSK Modulation
Waveform of output and modulating
Check the setting channel and press [CH] key to set the desired channel.
The setting channel 1: 1: MODU XXX ???→ , The setting channel 2: 2: MODU XXX ???→
Set XXX to FSK in the MODE menu. (VFD) 1: MODU FSK MORE→
Select each item (SOURCE, R=, F=, DUTY) in the FSK modulation related wave.
Press the [→] key to enter the FSK detail menu and cause YYY to blink.
(VFD) 1: FSK YYY ???
(1) Setting SOURCE of the modulating waveform
The SOURCE menu can be set only having the option of the external modulation.
Select either waveform of the internal or external for the source of a modulating waveform.
 75 
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) FSK SOURCE ??? .
(The “SOURCE” characters are blinking.)
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob to select INT or EXT.
(The “INT or EXT” characters are blinking.)
INT : The FSK wave is varied by the internal modulating waveform
EXT : The FSK wave is varied by the external modulating waveform from the external
modulation input (EXT MODE) on the rear panel.
Press the [←] key to cause SOURCE to blink.
(2) Setting of the key rate using the internal frequency
This sets the key rate using the internal frequency.
If the SOURCE settings is EXT or the SHAPE settings is NOISE, the “R=” menu does not
display.
Setting range : 10 mHz to 100.000 kHz
Valid number of digits : 6 digits (Minimum resolution 10mHz)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: FSK R=
######Hz .
(The “R=” characters are blinking.)
Press the [→] key to cause ###### to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
Press the [←] key to cause R= to blink.
(3) Setting the shift frequency
This sets the key rate wit the internal frequency.
Selecting waveform and Setting range :
Selecting Waveform
Setting Range
High-speed mode
Square wave and sine wave
10mHz to 15.0000MHz
Triangular wave, ramp wave,
and pulse wave
10mHz to 100.000kHz
 76 
Arbitrary wave
10mHz to 1.60000MHz
Low-speed mode
All waves
10mHz to 100.000kHz
Note) The selecting waveform is a carrier not a modulating wave. Refer to the system menu for a
low-speed mode /high-speed mode.
Valid number of digits : 6 digits (Minimum resolution 10mHz)
When SOURCE is EXT:
(1) if the 2.1V or more voltage is input into EXT MODU INPUT, the modulating frequency is
set to the shift frequency.
(2) if the O.9V or less voltage is input into EXT MODU INPUT, the modulating frequency is
set to the frequency in the normal display mode.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: FSK F=
######Hz .
(The “F=” characters are blinking.)
Press the [→] key to cause ###### to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limits, through direct input via the 10-key, the setting is pushed back
the upper or lower limit value.
Press the [←] key to cause F= to blink.
(4) Shift DUTY by the internal frequency setting
This sets Shift DUTY when SOURCE is set to INT.
Setting range : 1.0% to 99.0%
Setting resolution: 0.1%
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: FSK DUTY
±####゜.
(The “DUTY” characters are blinking.)
Press the [→] key to cause ### to blink. (One digit within ### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limits, through direct input via the 10-key, the setting is pushed back
the upper or lower limit value.
 77 
Press the [←] key to cause DUTY to blink.
(5) Return to the normal display mode
Pressing the [MENU] key un-illuminates this key. Then
(VFD)
1:!
SETTING
!
and
“the
normal
Then MODU LED is illuminated and FSK is set to ON.
display
mode”
appears.
Pressing the [BACK] key during the MODU detail menu, or pressing the [←] key while items
on the left side of the FSK detail menu are blinking, causes a return to
(VFD) 1: MODU FSK MORE→ .
With operating the [↑] key, [↓] key or the frequency knob while the “MODU” characters are
blinking, if the menu is moved to the other menu or the [MENU] key is pressed, causes
(VFD) 1:! SETTING ! and “the normal display mode” appears.
Then MODU LED is illuminated and FSK is set to ON.
Even if exiting the menu when the generation mode is TRIG and the waveform is NOISE or
DC, the FSK modulation does not become effective.
1:
!
M O
D
U
D I S A B L E !
An error beep is sounded and the operational error message appears for one second.
Please change the selective waveform or the generation mode. After those changes, the
modulation becomes effective.
FSK modulation OFF Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the MODU menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU FSK MORE→ .
(The “MODU” characters are blinking.)
Press the [→] key to cause FSK to blink. (VFD) 1: MODU FSK MORE→ .
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU OFF .
(The “OFF” characters are blinking.)
 78 
(4) Pushing the [MENU] key causes MODU to set OFF and a return to the normal display
mode, at the same time, the MODU status LED will be unlit.
3.10.6 PSK Modulation
Waveform of output and modulating
Check the setting channel and press [CH] key to set the desired channel.
The setting channel 1: 1: MODU XXX ???→ , The setting channel 2: 2: MODU XXX ???→
Set XXX to PSK in the MODE menu, (VFD) 1: MODU PSK MORE→ .
Select each item (SOURCE, R=, F=, DUTY) in the PSK modulation related wave.
Press the [→] key to enter the PSK detail menu and cause YYY to blink.
(VFD) 1: PSK YYY ???
(1) Setting SOURCE of the modulating waveform
The SOURCE menu can be set only having the option of the external modulation.
Select either waveform of the internal or external for the source of a modulating waveform.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) PSK SOURCE ??? .
(The “SOURCE” characters are blinking.)
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob to select INT or EXT.
(The “INT or EXT” characters are blinking.)
INT : The PSK wave is varied by the internal modulating waveform
EXT : The PSK wave is varied by the external modulating waveform from the external
modulation input (EXT MODE) on the rear panel.
Press the [←] key to cause SOURCE to blink.
(2) Setting of the key rate with the internal frequency
 79 
This sets the key rate with the internal frequency.
If the SOURCE settings is EXT or the SHAPE settings is NOISE, the “R=” menu does not
display.
Setting range : 10 mHz to 100.000 kHz
Valid number of digits : 6 digits (Minimum resolution 10mHz)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PSK R=
######Hz .
(The “R=” characters are blinking.)
Press the [→] key to cause ###### to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limits, through direct input via the 10-key, the setting is pushed back
the upper or lower limit value.
Press the [←] key to cause R= to blink.
(3) Setting the shift phase
This sets the shift phase with the internal frequency.
Setting range : -359.9゜to +359.9゜
Setting resolution: 0.1゜
When SOURCE is EXT:
(1) if the 2.1V or more voltage is input into EXT MODU INPUT, the modulating frequency is
set to the shift frequency.
(2) if the O.9V or less voltage is input into EXT MODU INPUT, the modulating frequency is
set to the frequency in the normal display mode.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PSK PHA
##### .
(The “PHA=” characters are blinking.)
Press the [→] key to cause ###### to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limit, through the 10-key, the setting is pushed back to either the
upper limit value or the lower one.
 80 
Press the [←] key to cause PHA= to blink.
(4) Shift DUTY by the internal frequency setting
This sets Shift DUTY when SOURCE is set to INT.
Setting range : 1.0% to 99.0%
Setting resolution: 0.1%
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: PSK DUTY
±####゜.
(The “DUTY” characters are blinking.)
Press the [→] key to cause ### to blink. (One digit within ### will blink.)
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
The value that exceeds the setting range cannot be set.
If the value is out of the limits, through direct input via the 10-key, the setting is pushed back
the upper or lower limit value.
Press the [←] key to cause DUTY to blink.
(5) Return to the normal display mode
Pressing the [MENU] key un-illuminates this key. Then
(VFD)
1:!
SETTING
!
and
“the
normal
Then MODU LED is illuminated and PSK is set to ON.
display
mode”
appears.
Pressing the [BACK] key during the MODU detail menu, or pressing the [←] key while items
on the left side of the PSK detail menu are blinking, causes a return to
(VFD) 1: MODU PSK MORE→ .
With operating the [↑] key, [↓] key or the frequency knob while the “MODU” characters are
blinking, if the menu is moved to the other menu or the [MENU] key is pressed, causes
(VFD) 1:! SETTING ! and “the normal display mode” appears. Then MODU LED is
illuminated and PSK is set to ON.
Even if exiting the menu when the generation mode is TRIG and the waveform is NOISE or
DC, the PSK modulation does not become effective.
1:
!
M O
D
U
D I S
A B L E
!
An error beep is sounded and the operational error message appears for one second.
Please change the selective waveform or the generation mode. After those changes, the
modulation becomes effective.
 81 
PSK modulation OFF Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the MODU menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU PSK MORE→ .
(The “MODU” characters are blinking.)
Press the [→] key to cause PSK to blink. (VFD) 1: MODU PSK MORE→ .
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU OFF .
(The “OFF” characters are blinking.)
(4) Pushing the [MENU] key causes MODU to set OFF and a return to the normal display
mode, at the same time, the MODU status LED will be unlit.
 82 
3.10.7 Pulse Motor Modulation Settings (MT Menu)
This function is optional. The MT-MOD menu only appears when the motor control option
has been installed.
Moreover, this menu does not appear when the setting of FREQ-RANGE in the SYSTEM
menu is SLOW (low-speed mode).
With this function, a pulse motor modulation waveform can be output.
Setting of the pulse motor modulation is performed in the MT menu of the menu mode.
(Refer to “the Appendix pulse motor modulation”.)
Check the setting channel and press [CH] key to set the desired channel.
The setting channel 1: 1: MODU XXX ???→ , The setting channel 2: 2: MODU XXX ???→
Set XXX to MT in the MODE menu. (VFD) 1: MODU MT MORE→
Select each item (CTL, MODE, VP-CRV, DW-CRV, L=, H=, UP, DOWN, STP, WAIT) in the
MT modulation related wave.
Press the [→] key to enter the MT detail menu and cause YYY to blink.
(VFD) 1: MT YYY ???
(1) Setting the pulse motor control mode
This selects the method of outputting from the CW/CCW terminal on the rear panel.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MT CTL ???.
(The “CTL” characters are blinking.)
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob and select the desired pulse motor
modulation mode.
CW/CCW : Method to output pulse of CW/CCW.
PLS/DIR+ : Method to output PULSE and DIR signal (DIR initial value: ON)
PLS/DIR+ : Method to output PULSE and DIR signal (DIR initial value: ON)
Press the [←] key to cause CTL to blink.
Note) CH1 and CH2 both become common set in this menu. (If CH1 is changed, CH1 and
CH2 become the same settings).
(2) Setting the pulse motor modulation mode
This selects the sequence of the pulse motor modulation.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MT MODE ???.
(The “MODE” characters are blinking.)
 83 
Press the [→] key to cause ??? to blink.
Operate the [↑] key, [↓] key or the frequency knob and select the desired pulse motor
modulation mode.
LIN-A: Trapezoidal control of speed, slowdown according to sensor input.
LIN-B: Trapezoidal control of speed, slowdown according to pulse count.
ARB-A: The modulation waveform of ARB-A or the speed control by the curve working a
letter like “S”, slowdown according to sensor input.
ARB-B: The modulation waveform of ARB-B or the speed control by the curve working a
letter like “S”, slowdown according to pulse count.
Press the [←] key to cause MODE to blink.
Note) CH1 and CH2 both become common set in this menu. (If CH1 is changed, CH1 and
CH2 become the same settings).
(3) Selecting the curve of acceleration
This selects the curve of acceleration.
The UP-CRV menu only appears when the MODE settings is set to ARB-A or ARB-B. The
menu does not appear besides those menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MT UP-CRV ??? .
(The “UP-CRV” characters are blinking.)
Operate the [↑] key, [↓] key or the frequency knob and press the [→] key to cause ??? to
blink.
Operate the [↑] key, [↓] key or the frequency knob to select the desired curve.
ARB 0 to 3: The 0 to 3 of the ARB memories is used as the curve of acceleration. Note 1
ARB S: The rising curve by the curve waking a letter like “S”
Press the [←] key to cause UP-CRV to blink.
Refer to the Appendix; "Make the curve of acceleration and deceleration by the ARB
waveform".
(4) Selecting the curve of deceleration
This selects the curve of deceleration.
The DW-CRV menu only appears when the MODE settings is set to ARB-A or ARB-B. The
menu does not appear besides those menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MT DW-CRV ??? .
(The “DW-CRV” characters are blinking.)
Operate the [↑] key, [↓] key or the frequency knob and press the [→] key to cause ??? to
blink.
 84 
Operate the [↑] key, [↓] key or the frequency knob to select the desired curve.
ARB 0 to 3: The 0 to 3 of the ARB memories is used as a curve of deceleration. Note 1
ARB S: The rising curve by the curve waking a letter like “S”
Press the [←] key to cause DW-CRV to blink.
Note2; Refer to the Appendix; "Make the curve of acceleration and deceleration by the ARB
waveform".
(5) Setting the initial frequency
This sets the initial frequency.
Setting range : 10 mHz to 100.00 kHz (where the range satisfies the condition “initial
frequency ≦ maximum frequency”)
Valid number of digits : 6 digits
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) MT L= ######Hz .
(The “L=” characters are blinking.)
Press the [→] key to cause ###### to blink.
Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
Direct input via the 10-key is also possible. (Refer to chapter 2.5.2, “Numeric Input of Setting
Values.”)
Press the [←] key to cause L= to blink.
(6) Setting the maximum frequency
This sets the maximum frequency.
Setting range : 10 mHz to 100.00 kHz (where the range satisfies the condition “initial
frequency ≦ maximum frequency”)
Valid number of digits : 6 digits
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) MT H= ######Hz .
(The “H=” characters are blinking.)
Press the [→] key to cause ######Hs to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
The method of setting is the same as (5), “Setting the initial frequency.”
Press the [←] key to cause H= to blink.
(7) Setting the acceleration time
 85 
This sets the acceleration time.
Setting range : 1 ms to 100 s
Valid number of digits : 3 digits (Minimum resolution is 1ms)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MT UP ###s .
(The “UP” characters are blinking.)
Press the [→] key to cause ###s to blink. (One digit within ### will blink.)
Set the numeric value by moving the position of the blinking digit.
The method of setting is the same as (5), “Setting the initial frequency”, only the units are
different.
Press the [←] key to cause UP to blink.
(8) Setting of the deceleration time
This sets the deceleration time.
Setting range : 1 ms to 100 s
Valid number of digits : 3 digits (Minimum resolution is 1ms)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: MT DOWN ###s .
(The “DOWN” characters are blinking.)
Press the [→] key to cause ###s to blink. (One digit within ###### will blink.)
Set the numeric value by moving the position of the blinking digit.
The method of setting is the same as (7), “Setting the acceleration time.”
Press the [←] key to cause DOWN to blink.
(9) Setting the pulse count until slowdown
(This menu appears only when the mode is set to “LIN-B” or “ARB-B”.)
This sets the number of pulses until slowdown as a wave count (integer value).
Setting range : 1 to 16777216 (integer) (See note.)
Resolution:
1
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: MT 1ST ######## . (The “1ST” characters are blinking.)
Press the [→] key to cause ######## to blink. (One digit within ######## will blink.)
Set the numeric value by moving the position of the blinking digit.
The method of setting is the same as (5), “Setting the initial frequency.”
Press the [←] key to cause 1ST to blink.
 86 
(Note) The following conditions must be satisfied.
“L=” is set to the value of F1,
“H=”is set to the value of F2, and where “UP” is the time until maximum frequency,
UP ≦ When 60ms
60ms < When UP
1ST count > UP×(F1+F2)/2 + 6ms×F2
1ST count > UP×(F1+F2)/2 + UP×0.1×F2
(10) Setting the pulse count until generation stop
This sets the number of pulses until generation stops as an integer value.
Setting range : 1 to 16777216 (integer) (See note 2.)
Resolution:
1
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: MT STP ######## .
(The “STP” characters are blinking.)
Press the [→] key to cause ######## to blink. (One digit within ######## will blink.)
Set the numeric value by moving the position of the blinking digit.
The method of setting is the same as (5), “Setting the initial frequency.”
Press the [←] key to cause STP to blink.
(Note 2) The following conditions must be satisfied.
During LIN-A mode and ARB-A mode
“L=”is set to the value of F1,
“H=”is set to the value of F2
UP≦When 60ms
STOP count > UP×(F1+F2)/2 + 6ms×F2
When UP≧60ms
STOP count > UP×(F1+F2)/2 + UP×0.1×F2
During LIN-B mode and ARB-B mode
“L=” is set to the value of F1,
“H=” is set to the value of F2
DOWN≦When 60ms
STOP count > DOWN×(F1+F2)/2 + 6ms×F1
60ms < When DOWN
F1
STOP count > DOWN×(F1+F2)/2 + DOWN×0.1×
(11) Setting the wait time
This sets the wait time.
Setting range : 10 ms to 100 s
Valid number of digits : 3 digits (minimum resolution 10ms)
Operate the [↑] key, [↓] key or the frequency knob to display
 87 
(VFD)1: MT WAIT ###s .
(The “WAIT” characters are blinking.)
Press the [→] key to cause ###s to blink. (One digit within ### will blink.)
Set the numeric value by moving the position of the blinking digit.
The method of setting is the same as (5), “Setting the initial frequency.”
Press the [←] key to cause WAIT to blink.
(12) Return to the normal display mode
Pressing the [MENU] key un-illuminates this key. Then
(VFD)
1:!
SETTING
!
and
“the
normal
Then MODU LED is illuminated and FM is set to ON.
display
mode”
appears.
Pressing the [BACK] key during the MODU detail menu, or pressing the [←] key while items
on the left side of the FM detail menu are blinking, causes a return to
(VFD) 1: MODU MT MORE→ .
With operating the [↑] key, [↓] key or the frequency knob while the “MODU” characters are
blinking, if the menu is moved to the other menu or the [MENU] key is pressed, causes
(VFD) 1:! SETTING ! and “the normal display mode” appears. Then MODU LED is
illuminated and FM is set to ON.
At the same time, the setting status of this instrument will become as follows.
Selected waveform : Pulse wave ([pulse] key is illuminated)
Generation mode
: Continuous generation mode ([CONT] key is illuminated), or
triggered generation mode ([TRIG] key is illuminated)
(In the case of gate generation, the mode switches to the continuous
generation mode.)
(Refer to chapter 3.4.1, “About Generation Modes.”)
Display
: Normal display mode
The display is similar to the following.
1:
5
0
.
0
m
V
M
T
M
O
D
U
Operational error message and Caution
While SWEEP or BURST is “ON”, pulse motor modulation cannot be set to ON.
If pulse motor modulation is set to “ON” while the SWEEP or BURST setting is “ON”, a
operational error message (shown below) appears for 1 second and then SWEEP, BURST
or BANK is forcibly set to “OFF.”
If the pulse motor modulation setting is returned to “OFF” after the operational error
message appears, the SWEEP, BURST or BANK setting will remain “ON.”
 88 
Case where pulse motor modulation is set to “ON” while SWEEP is “ON”:
1:
!
S
W
E
E
P
O
N
→
O
F
F
!
F
!
F
!
Case where pulse motor modulation is set to “ON” while BURST is “ON”:
1:
!
B
U
R
S
T
O
N
→
O
F
Case where pulse motor modulation is set to “ON” while BANK is “ON”:
1:
!
B
A
N
K
O
N
→
O
F
Implementing either of the following operations while pulse motor modulation is set to “ON” will
cause an error beep to sound,
1:
!
M
T
C
A
N
C
E
L
E
D
!
to be displayed, and if the following operation is done, the pulse motor modulation to be forcibly
set to “OFF.”
・ Pressing a waveform selection key other than pulse wave
・ Pressing the [GATE] key
•
During operation in the pulse motor modulation mode, the MT wave is output from the CH1
and CH2 of the front panel the same frequency and DUTY as the output as a pulse wave
from CH1 and CH2 of.
The waveform of DUTY of the same frequency is output from CH1 and the CH2 output of the
front side according to the setting of the motor control signal during operating by the pulse
motor modulation.
When CW/CCW:
The CH1 output corresponds to the CW output, and, similarly, CH2
corresponds to CCW.
When the pulse motor modulation is turning on only to one CH, it is the
same as this.
When PLS/DIR+:
When CCW (DIR output) is ON, CW is output to CH1 and,
When CCW (DIR output) is OFF, CW is output to CH2.
When PLS/DIR-:
When CCW (DIR output) is OFF, CW is output to CH1 and,
When CCW (DIR output) is ON, CW is output to CH2.
•
The CW/CCW pin of the rear panel is an open collector output. The signal output from the
CH1 and CH2 pin of the front panel is a normal pulse wave output with variable amplitude
and OFFSET.
•
The CH1 and CH2 ON key located on the front panel simultaneously turns ON/OFF the
output of both the front panel CH1 and CH2 pin and the rear panel CW/CCW pin.
 89 
Pulse motor modulation OFF Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the MODU menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU MT MORE→ .
(The “MODU” characters are blinking.)
Press the [→] key to cause MT to blink.
(VFD) 1: MODU MT MORE→ .
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: MODU OFF .
(The “OFF” characters are blinking.)
(4) Pushing the [MENU] key causes MODU to set OFF and a return to the normal display
mode, at the same time, the MODU status LED will be unlit.
Operation of pulse motor modulation
CW/CCW pin
The CW/CCW pin is used being connected to the pulse motor driver.
Because pulse motor drivers often have a photo-coupled input, this instrument has an open
collector output that the maximum input voltage is +50 V or less.
Power Supply
Motor Drive
Function Generator
Power Supply
Motor Drive Circuit
CW/CCW
CW/CCW Input
If the input of the motor driver side is PLS/DIR, the CW output of this instrument is connected to
the PLS input of the driver and the CCW output to the DIR input of the driver.
When a voltage output is required, connect the output signal from the OUT pin through a resistor
to the power supply.
 90 
The maximum input voltage of the CW/CCW pin is +50V or less and a maximum current of 100
mA, select the power supply and resistor values carefully.
Power Supply
Function Generator
CW/CCW
Voltage Output
GND for Power Supply
IN1 pin
The IN1 terminal is input from the photo center signal etc..
In accordance with the pulse motor modulation mode, the IN1 pin is used to initiate slowdown or
control generation stopping of *CCW (CH2 side).
Use TTL levels to control this pin. The polarity conforms to the TRIG POLARITY setting. (Note)
* When PLS/DIR+, CCW(DIR) is OFF.
* When PLS/DIR-, CCW(DIR) is ON.
IN2 pin
The IN2 terminal is input from the photo center signal etc..
In accordance with the pulse motor modulation mode, the IN2 pin is used to initiate slowdown or
control generation stopping of **CW (CH1 side).
Use TTL levels to control this pin. The polarity conforms to the TRIG POLARITY setting. (Note)
** When PLS/DIR+, CCW(DIR) is ON.
** When PLS/DIR-, CCW(DIR) is OFF.
Note:
Pulse motor modulation and TRIG SEL menu
When the pulse motor modulation is turned on, TRIG of CH1 is set to TRIG1 and TRIG of CH2 to
TRIG2 automatically.
The polarity is the same before the pulse motor modulation is turned on.
Even if TRIG SEL menu is changed while the pulse motor modulation is set to ON,
Be careful not to be reflected until the pulse motor modulation is turned off next.
Therefore, switch the polarity to the previous setting before turning on the pulse motor
modulation.
 91 
3.11 Bank Settings (BANK ON/OFF Menu)
An arbitrary waveform is stored to four containers with the desired order, and can be
switched and output to four containers; BANK0, BANK1, BANK2, BANK3.
The switching of an arbitrary waveform can be set by three methods using each waveform;
the external TRIG input, the frequency of the generation and the time.
The breakdown simulation (an abnormal waveform every 1000 times) can be performed by
using the BANK menu, for instance, the steps are: (1) a normal waveform and an abnormal
waveform are made and forwarded to the two banks as an arbitrary waveform, (2) an
abnormal waveform is output once whenever a normal waveform is output 1000 times.
The bank is set in the menu mode.
3.11.1 Bank settings steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the BANK.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: BANK XXX .
(The “BANK” characters are blinking.)
Press the [→] key to cause XXX to blink.
(VFD) 1: BANK XXX .
(3) Setting to the ON
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: BANK ON MORE → .
(The “ON” characters are blinking.)
(4) Entering the BANK detailed menu, and each item of the bank is set.
Press the [→] key to cause to START BANK blink.
(VFD) 1: START BANK # .
(a) Setting of the bank value
For instance, four kinds of arbitrary waveforms are switched by using four banks of BANK3,
BANK2, BANK1, and BANK0 when three is set.
Moreover, two kinds of arbitrary waveforms are switched by using two banks of BANK1 and
BANK0 when one is se
The number of banks is set by the integer value.
 92 
Setting range : 1 to 3
Press the [→] key to cause # to blink and set the numeric value in the BANK detailed menu.
(One digit within # will blink.)
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
Values that exceed the setting range cannot be set. Direct input via the 10-key is also
possible. (Refer to chapter 2.5, “Numeric Input of Setting Values.”)
Press the [←] key to cause START BANK to blink.
(b) Setting the bank trigger “BANK-TRIG”
This sets the switching method of the bank.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: BANK-TRIG #### .
(The “BANK-TRIG” characters are blinking.)
Press the [→] key to cause ###### to blink and set the desired method of the bank.
COUNT:
TRIG, which changes the bank, depends on the number of generations.
TIME:
TRIG, which changes the bank, depends at specified time.
EXT:
TRIG, which changes the bank, becomes external TRIG input (TRIG input
specified by the TRIG SEL menu).
When TRIG1 is set by the TRIGSEL menu, it is possible to change with [MAN] key manually.
Press the [←] key to cause BANK-TRIG to blink.
(c) Setting the bank0
Bank 0 is set.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: BANK0 YYY #### .
(The “BANK0” characters are blinking.)
i. Setting the SHAPE
Press the [→] key to cause YYY to blink.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: BANK0 SHAPE #### .
(The “SHAPE” characters are blinking.)
Press the [→] key to cause #### to blink.
Operate the [↑] key, [↓] key or the frequency knob to set he BANK signals.(ARB0 to ARB3)
 93 
ARB0
Arbitrary waveform 0 is stored in bank 0.
ARB3
Arbitrary waveform 3 is stored in bank 0.
Press the [←] key to cause SHAPE to blink.
ii. Set the BANK count
Set the bank count (integer value).
The BANK count can be set when the bank trigger is COUNT.
(Do not appear to the menu besides.)
The count of generation in the BANK0 is set.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: BANK0 COUNT #### .
(The “COUNT” characters are blinking.)
Setting range: 1 to 892
・ Press the [→] key to cause #### to blink. (One digit within #### will blink.)
・ Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
Values that exceed the setting range cannot be set. Direct input via the 10-key is also
possible. (Refer to chapter 2.5, “Numeric Input of Setting Values.”)
Press the [←] key to cause COUNT to blink.
iii. Set the BANK time
Set the bank time (integer value).
The BANK time can be set when the bank trigger is TIME.
(In the others setting, do not appear the menu.)
The TIME of generation in the BANK0 is set.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: BANK0 TIME ###s .
(The “TIME” characters are blinking.)
Setting range: 10ms to 500s
Valid number of digits : 3 digits
・ Press the [→] key to cause #### to blink. (One digit within #### will blink.)
・ Set the numeric value by moving the position of the blinking digit.
Press the [FREQ >] and [FREQ <] keys to move the blinking digit and operate the [↑] and [↓]
keys or frequency knob to set each digit to the desired numeric value.
 94 
Values that exceed the setting range cannot be set. Direct input via the 10-key is also
possible. (Refer to chapter 2.5, “Numeric Input of Setting Values.”)
Press the [←] key to cause TIME to blink.
(d) Setting of “BANK1 to BANK3”
SHAPE, COUNT, and TIME of “BANK1 to BANK3” are set respectively in a similar way as
the setting of BANK0.
(5) Return to the normal display mode
Pressing the [MENU] key un-illuminates this key. Then
(VFD)
1:!
SETTING
Then BANK is set to ON.
!
and
“the
normal
display
mode”
appears.
Pressing the [←] key while items on the left side of the BANK detail menu are blinking,
causes a return to the BANK menu, or if the menu is moved to the other menu causes BANK
to set ON.
3.11.2
Operational error message and Caution
(1) Operational error message
The setting of the bank becomes effective at the same time when it leaves the BANK menu.
While the BURST, modulations except AM or SWEEP setting is “ON”, BANK cannot be set
to “ON.”
If BANK is set to “ON” while the BURST, modulations except AM or BANK setting is “ON”, a
operational error message (shown below) appears for 1 second and then BURST,
modulations or BANK is forcibly set to “OFF.”
However, if the BANK setting is returned to “OFF” after the operational error message
appears, the SWEEP, the BURST and modulations except AM setting will remain “ON.”
If BANK is “ON” while SWEEP is set to “ON:
1:
!
S
W
E
E
P
O
N
→
O
F
F
!
N
→
O
F
F
!
→
O
F
F
!
If the BANK is “ON” while BURST is set to “ON”:
1:
!
B
U
R
S
T
O
If BANK is “ON” while the modulations is set to “ON”:
1:
!
M
O
D
U
O
N
(2) BANK and Generation mode
While the bank trigger is set to TIME, if the generation mode is set to TRIG, the settings is not
switched by the time set in the BANK TIME, is switched by TRIG input specified in the
TRIGSEL menu.
 95 
(The setting of the bank trigger works as the same operation of EXT.)
*
BANK cannot be used while the gate mode is selected in the generation mode.
If the bank is turned on when the generation mode is GATE mode, the generation mode
automatically becomes CONT.
If an attempt is made to set the generation mode to “GATE” while the BANK is ON, an error
beep is sounded and the operational error message appears.
1:
!
B
A
N
K
C
A
N
C
E
L
E
D
!
When bank is OFF, the ARB waveform is output a usual state according to the setting by the
ARB menu . (Refer to "3.12 the ARB menu".)
(3) BANK and Selective waveform
The bank is a function to use the waveform of ARB.
Therefore, if the bank is turned on, the selective waveform automatically becomes ARB.
Pressing the [sin],[square],[pulse],[triangle],[ramp],[DC],[noise],[ARB]key while BANK is
“ON”, an error beep is sounded and the operational error message appears for one second.
1:
!
B
A
N
K
C
A
N
C
E
L
E
D
!
Pressing the [ARB] key to become BANK to OFF, the ARB waveform is output a usual state
according to the setting by the ARB menu. (Refer to "3.12 the ARB menu".)
BANK OFF Steps
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the BANK menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: BANK ON MORE→ .
(The “BANK” characters are blinking.)
Press the [→] key to cause ON to blink.
(3) Change the setting to OFF.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: BANK OFF .
(The “OFF” characters are blinking.)
(4) Pushing the [MENU] key causes BANK to set OFF and a return to the normal display
mode.
 96 
3.12 Arbitrary waveform's Settings (ARB Menu)
This instrument can set an arbitrary waveform of each CH. (Refer to "About ARB". )
Press the [CH] key to select the channel to
change the desired settings.
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the ARB menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: ARB XXX YYY .
(The “ARB” characters are blinking.)
Press the [→] key to cause XXX to blink.
(VFD) 1: ARB XXX YYY .
When XXX is MEMORY, arbitrary waveform's memory number is set.
When XXX is MODE, jitterless or the capacity priority mode is set.
(3) Enter the MEMORY menu.
Memory number (0-3) of ARB is set.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: ARB MEMORY YYY .
(The “MEMORY” characters are blinking.)
Press the [→] key to cause YYY to blink.
Operate the [↑] key, [↓] key or the frequency knob and select the desired memory number
(#0 to #3)of ARB.
Press the [←] key to cause MEMORY to blink.
(4) Enter the MEMORY menu.
The waveform output mode of ARB is switched. (Refer to the Appex "ARB". )
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD) 1: ARB MODE YYY .
(The “MODE” characters are blinking.)
Press the [→] key to cause YYY to blink.
Operate the [↑] key, [↓] key or the frequency knob to select JTLESS or NORMAL.
・ Modes
 97 
There are two arbitrary waveform output modes, a capacity-priority mode (NORMAL) and a jitterless
mode (JTLESS). Characteristics of each mode are listed in the chart below. (Refer to chapter 3.12,
“Arbitrary Waveform Menu”)
Jitterless mode
MODE
CONT or
Capacity-priority
mode
TRIG
GATE
Jitter
Jitter generated for 1
system clock
Not
generated
Memory capacity
Small
Large
(same
mode)
(Refer to separate
as
Large
capacity-priority
sheet)
Bandwidth
Low
High
Abrupt waveform
Ascend time will be slow, but waveform
will be smooth
Ringing will occur
Note: In the case of the low-speed mode, the mode will always change to the capacity-priority mode but
characteristics will be the same as for the TRIG in the jitterless mode.
(5) Return to the normal display mode
Pressing the [MENU] key un-illuminates this key. Then
(VFD)
1:!
SETTING
!
and
“the
normal
Then MODU LED is illuminated and FM is set to ON.
display
mode”
appears.
Pressing the [BACK] key during the ARB detail menu, or pressing the [←] key while items on
the left side of the ARB detail menu are blinking, causes a return to ARB menu.
If the waveform is selected to ARB, this instrument is output an arbitrary waveform with the
mode specified.
 98 
3.13 Generation Control by External Signal
With this instrument, generation of the waveform output and stopping of the generation
can be controlled by external signal input or manual operation. There are two types of
generation control as follows:
Trigger Controlled Generation
Outputs the waveform each time a trigger is input.
Gate Controlled Generation
Outputs the waveform during the interval while the gate signal is open.
3.13.1 Trigger Controlled Generation
Outputs the waveform each time a valid trigger input is captured.
The trigger is connected to the TRIG1/GATE1 or TRIG2/GATE2 input pin of the rear
panel.
TRIG input: TTL level
The [MAN] key (manual key) internally generates a valid trigger signal. When the [MAN]
key is pressed, operation starts as if there was a valid trigger input at the TRIG1/GATE1
input pin of the rear panel.
Caution : Depending on the status of the signal input to the rear panel TRIG2 input pin,
the [MAN] key might be disabled in some cases.
Press the [CH] key to set the desired CH.
(1) Press the [TRIG] key of the front panel to set the generation mode to the triggered
generation mode.
(2) Set the trigger polarity.
(a) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(b) Enter the TRIG menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: TRIGSEL XXXX ? .
(The “TRIGSEL” characters are blinking.)
(c) Select the input terminal.
Press the [→] key to cause XXXX to blink.
(VFD) 1: TRIGSEL XXXX ? .
 99 
Operate the [↑] key, [↓] key or the frequency knob to select TRIG1/GATE1 or
TRIG2/GATE2.
TRIG1:
Selects the input channel of TRIG1/GATE1.
TRIG2:
Selects the input channel of TRIG2/GATE2.
(d) Select the polarity.
Press the [→] key to cause ? to blink.
(VFD) 1: TRIGSEL XXXX ? .
Operate the [↑] key, [↓] key or frequency knob to select “＋” or “−.”
When (VFD)1: TRIG-POLARITY + is set, this instrument starts generation at the rising
edge.
When (VFD)1: TRIG-POLARITY − is set, this instrument starts generation at the falling
edge.
When both SWEEP and BURST are “OFF”, only 1 cycle of the waveform is output each time
a trigger is captured in the triggered generation mode.
When SWEEP is “ON”, SWEEP starts each time a trigger is input in the triggered generation
mode.
However, trigger inputs are ignored during the SWEEP interval.
When BURST is “ON”, each time a TRIG is input, output of the waveform lasts for the
number of cycles set with the ON BURST count, and then stops. However, trigger inputs are
ignored during the generation.
Caution :
Note 1:
In the case of a sine wave or square wave, the waveform and flatness of the amplitude are not
guaranteed for frequencies exceeding 1 MHz.
Note 2: About the pulse motor modulation and the TRIG SEL menu
If the pulse motor modulation is turned on, TRIG on the CH1 side to TRIG1 and the CH2 to
TRIG2 side is automatically set.
The polarity is a state before turning on the pulse motor modulation.
Even if the TRIG SEL menu changes while the pulse motor modulation is ON, the change is not
reflected until the pulse motor modulation is turned off next.
Therefore, please set the polarity before turning on the pulse motor modulation.
 100 
3.13.2 Gate Controlled Generation
This method controls output of the waveform during the interval while the gate is open.
Gate polarity (whether “H” or “L” is open) is set with the TRIG menu. The gate signal is
input to the rear panel TRIG input pin.
TRIG input: TTL level
In the gate generation mode, the [MAN] key (manual key) operates to open the gate.
While the key is pressed, the gate is open.
Press the [CH] key to set the desired channel.
Press the [CH] key to select the channel to
change the desired settings.
(1) Press the [GATE] key of the front panel and set the generation mode to gate controlled
generation.
(2) Select the input terminal.
The operation steps are the same as chapter (2) of 3.13.1, and (c), Selection of the trigger
input terminal.
(3) Set the gate polarity.
The operation of setting the polarity is the same as that of chapter 3.11.1, (2) –(d)“Set the
Trigger Polarity.”
When SWEEP is “ON”, in the gate generation mode, SWEEP starts each time the gate
signal becomes “H.”
If the gate signal becomes “L” during the SWEEP, the SWEEP is terminated.
With pulse motor modulation, generation by gate control is not possible.
If pulse motor modulation is set to “ON”, the generation mode is forcibly changed from gate
generation mode to continuous generation mode.
With BURST generation, generation by gate control is not possible.
When the BURST setting is “ON”, if the [GATE] key is pressed to select gate generation as
the generation mode, the BURST setting is forcibly set to “OFF.” However, the values of
setting parameters are saved, including their ON/OFF status, and are reapplied when
another generation mode is selected.
Caution : In the case of a sine wave or square wave, the waveform and flatness of the
amplitude are not guaranteed for frequencies exceeding 1 MHz.
 101 
3.14 Save and Recall of Panel Settings (SETUP Menu)
This instrument is equipped with memory to save various panel settings. A maximum of 9
user settings may be saved. When necessary, the saved settings can be recalled and
applied to this instrument’s panel settings.
The save and recall of panel settings is performed in the menu mode. (Refer to chapter
2.4, “Display Modes, section (4), “Menu Mode.”)
Save and recall of this instrument’s panel settings can be set in the SETUP menu of the
menu mode. This instrument can also be initialized to the factory default settings.
3.14.1 Save of Panel Settings
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the SETUP menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: SETUP XXX YYY .
(The “SETUP” characters are blinking.)
Press the [→] key to cause XXX to blink.
(VFD)1: SETUP XXX YYY
(3) Enter the SETUP SAVE menu.
With XXX in the (VFD) SETUP XXX YYY display blinking, operate the [↑] key, [↓] key or
frequency knob to display (VFD)1: SETUP SAVE ##→ . (The “SAVE” characters are
blinking.)
Press the [→] key to cause ## to blink.
(VFD)1: SETUP SAVE ## →
(4) Operate the [↑] key, [↓] key or frequency knob and specify the memory number for saving
the setting.
(Setting range:1 to 9)
Pressing the [→] key causes (VFD)1: SAVE OK? Y→, N← to be displayed.
(5) Pressing the [→] key causes the save to be executed.
After (VFD)1: SAVE
normal display mode.
COMPLETE
appears,
the
display
returns
to
the
This instrument’s panel settings are now saved in the specified memory.
With (VFD)1: SAVE OK? Y→, N← displayed, pressing the [←] key causes a return to the
SETUP menu without executing a save.
 102 
(6) Press the [MENU] key to return to the normal display mode.
3.14.2 Recall of Panel Settings
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the SETUP menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: SETUP XXX YYY .
(The “SETUP” characters are blinking.)
Press the [→] key to cause XXX to blink.
(VFD)1: SETUP XXX YYY
(3) Enter the SETUP RECALL menu.
With XXX in the (VFD)1: SETUP XXX YYY display blinking, operate the [↑] key, [↓] key or
frequency knob to display (VFD)1: SETUP RECALL ##→ . (The “RECALL” characters are
blinking.)
Press the [→] key to cause ## to blink.
(VFD)1: SETUP RECALL ## →
(4) Operate the [↑] key, [↓] key or frequency knob and specify the memory number of the
desired setting to recall.
(Setting range:1 to 9)
Pressing the [→] key causes (VFD)1: RECALL OK? Y→, N← to be displayed.
(5) Pressing the [→] key causes the recall to be executed.
After (VFD)1: RECALL
normal display mode.
COMPLETE
appears,
the
display
returns
to
the
The recalled panel settings are applied to this instrument.
With (VFD)1: RECALL OK? Y→, N← displayed, pressing the [←] key causes a return to
the SETUP menu without executing a recall.
(6) Press the [MENU] key to return to the normal display mode.
 103 
3.14.3 Initialization of Panel Settings
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(2) Enter the SETUP menu.
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: SETUP XXX YYY .
(The “SETUP” characters are blinking.)
Press the [→] key to cause XXX to blink.
(VFD)1: SETUP XXX YYY
(3) With XXX in the (VFD)1: SETUP XXX YYY display blinking, operate the [↑] key, [↓] key or
frequency knob to display (VFD)1: SETUP INIT → . (The “INIT” characters are blinking.)
Pressing the [→] key causes (VFD)1: INIT OK? Y→, N← to be displayed.
(4) Pressing the [→] key causes initialization to be executed and a return to the setup menu.
This instrument is initialized to the panel settings.
With (VFD)1: INIT OK? Y→, N← displayed, pressing the [←] key causes a return to the
SETUP menu without executing initialization.
These are the settings of this instrument prior to entering the SETUP menu.
(5) Press the [MENU] key to return to the normal display mode.
Caution : If panel settings are restored to the initialized settings, the settings will
unconditionally return to the initialized state when power is turned ON. To recall
the state immediately prior to the last time power was shut OFF, set the “panel
settings immediately after POWER ON” in the system menu to “LAST.” (Refer to
chapter 3.13.2, “POWER ON Settings.”)
(6) The initialized settings are listed below.
For information regarding the menu tree, refer to chapter 2.4, “Display Modes,” section (4),
“Menu Mode.”
Front Panel
Display
: Normal display mode
(VFD)1:1.00 V 1.0000KHz
Output waveform : Sine wave ([sin] key is illuminated)
(1.0000 KHz, peak value: 1.00 V)
 104 
Generation mode : Continuous generation mode ([CONT] key is illuminated)
OUTPUT
: OFF
Offset Setting
O
F
S
+
0
m
V
5
0
1
0
0
O
F
F
E
P
O
F
F
.
0
%
O
F
F
.
0
%
O
F
F
.
0
Duty-factor Setting
・ Square wave, pulse wave
D
U
T
Y
T
Y
・ Ramp Wave
D
U
Initial Phase (PHA Menu)
P
H
A
+
0
Sweep (SWEEP Menu)
S
W
E
O
F
F
(SWEEP Detail Menu)
1:
M
O
D
E
L
1:
S
T
A
R
1:
S
T
O
P
1:
T
I
M
E
1:
I
N
T
1:
T
Y
P
E
C
1:
M
A
R
K
T
I
N
E
A
R
1. 0
0
0
0
0
K
H
z
1
0
.0
0
0
0
K
H
z
1
0
0
m
s
2
0
0
m
s
O
N
T
N
U
E
5. 0
0
0
0
0
k
H
z
 105 
°
Burst (BURST Menu)
1:
B
U
R
S
T
O
F
F
BURST Detail Menu
1:
O
N
-
C
O
U
N
T
1
1:
O
F
F
-
C
O
U
N
D
U
O
F
F
T
1
Modulation (MODU Menu)
1:
M
O
1:
A
M
S
O U R
C
E
1:
A
M
F
=
1
0
0.
0
1:
A
M
D
E
N S
I
T
Y
1:
A
M
S
H A P
E
I
N
0
T
H
z
0
S
I
N
1: A M
D U T Y
*5 0 .0
*When SHAPE is SQUR, PULS, and RAMP, DUTY is 100.0%.
1:
F
M
S
O U
1:
F
M
C
1:
F
M
1:
F
1:
R
C
E
=
1. 0
0
0
0
0
H
z
F
=
1
0
0.
0
0
H
z
M
D
=
1
0
0.
0
0
H
z
F
M
S
H A
P
E
1:
F
M
D
U T
Y
1:
P
M
S
O U
R
C
E
1:
P
M
F
=
1. 0
0
0
1:
P
M
M I
N
+
0.
0
°
1:
P
M
M A X
+
0.
0
°
1:
P
M
S
H A
P
E
S
I
N
1:
P
M
D
U T
Y
1:
P
W M
S
O
U
R
C
E
1:
P
W M
F
=
1
0
0.
0
0
0
1:
P
W M
M I
N
5
0.
0
%
1:
P
W M
M A
X
5
0.
0
%
1:
P
W M
S
A
H
I
S
N
I
P
 106 
E
0
N
0
N
0
%
T
H
z
*5 0.
0
I
T
S
%
T
*5 0
I
%
N
H
I
N
%
z
1:
F
S
K
S
O
1:
F
S
K
R
=
1:
F
S
K
F
=
1:
F
S
K
D
1:
P
S
K
1:
P
S
1:
P
1:
P
U
R
C
E
I
1
0
0.
0
0
1
0.
0
0
0
0
k
U
T
Y
5
0.
0
%
S
O
U
R
C
E
I
N
K
R
=
1
0
0.
S
K
P
H
A
S
K
D
U
T
Y
0
+
5
N
0
T
H
z
H
z
T
H
z
°
0.
0
0.
0
%
A
R
B
S
(Pulse Motor Modulation Detail Menu)
1:
M
T
D
W -
C
R
V
1:
M
T
L
=
1.
0
0
0
0
0
K
H
z
1:
M
T
H
=
5.
0
0
0
0
0
K
H
z
1:
M
T
U
P
1
0
0.
m
s
1:
M
T
D
O
W N
1
0
0.
m
s
1:
M
T
1
S
T
1
0
0
0
1:
M
T
S
T
P
1
0
0
0
1:
M
T
W A
I
T
2.
0
0
L
L
S
Save and Recall of Panel Settings (SETUP Menu)
S
E
T
U
P
R
E
C
A
S
E
T
U
P
S
A
V
E
#
1
→
#
1
→
G
1
+
Polarity of External Signal Input for Control (TRIG Menu)
1:
T
R
I
G
S
E
L
 107 
T
R
I
System Settings (SYSTEM Detail Menu)
O
U
T
C
O
N
T
R
O
L
G
P
I
B
A
D
D
R
E
S
G
P
I
B
D
E
L
I
M
R
S
R
A
T
E
R
S
L
E
N
G
T
R
S
P
A
R
I
R
S
S
T
O
R
S
D
E
L
P
W
-
O
P
W
-
O
B
E
E
P
B
E
E
P
F
R
E
Q
S
Y
N
S
Y
N
L
O
W -
E
A
C
S
H
4
C
R
+
L
F
0
0
B
P
S
H
8
B
I
T
T
Y
N
O
N
E
P
-
B
I
B
I
T
I
M
R
+
L
F
N
S
E
T
L
A
S
T
N
O
U
T
L
A
S
T
K
E
Y
P
U
O
N
E
R
R
O
R
O
N
-
R
A
N
G
E
F
A
S
C
O
U
T
-
F
C
H
1
C
O
U
T
-
R
C
H
2
P
O
W E
R
0
m
i
9
I
6
T
C
U
 108 
P
S
H
6
T
n
3.15 System Settings (SYSTEM Menu)
3.15.1 Output Control
This menu sets the ON/OFF of the CH1/CH2 output that is chosen whether independent or
simultaneousness.
(1) Enter the menu mode.
Pressing the [MENU] key illuminates this key. Then the menu display mode appears.
(VFD) 1: SYSTEM MORE→ . (The “SYSTEM” characters are blinking.)
(2) Press the [→] key to enter the SYSTEM detailed menu.
(VFD) 1: OUTCONTROL MORE→ appears .
(The “OUTCONTROL” characters are blinking.)
When a different display is done, operate the [↑] key, [↓] key or the frequency knob to display
this above-menu.
Press the [→] key to cause #### to blink.
(3) Setting to EACH or BOTH.
Operate the [↑] key, [↓] key or the frequency knob to set EACH or BOTH.
EACH:
Both channels can be independently turned on and off.
BOTH:
When the ON/OFF setting of either channel is changed, both channels are set to
ON or OFF at the same time.
(4) Pushing the [MENU] key causes SWEEP to set OFF and a return to the normal display
mode.
3.15.2 Remote Control (GPIB, RS232)
Remote control of this instrument is possible via the GPIB (optional) or RS232 interfaces.
The various communication-related settings are implemented in the RS menu and GPIB
menu of the SYSTEM menu. For information regarding commands, refer to the “Remote
Control” volume.
About the remote mode
When a command is received, this instrument immediately enters the remote mode.
Whichever of the GPIB or RS-232 interface that is first to be sent a remote command will
be enabled. If the remote mode is entered by a remote command via the GPIB interface,
remote commands from the RS232 interface will not be accepted. On the other hand, if
the remote mode is entered by a remote command via the RS232 interface, remote
commands from the GPIB interface will not be accepted.
To release the remote mode, press the [MENU] key (which operates as the [LOCAL]
key).
During the remote mode, key input other than by the [MENU] key, and input by rotation of
the AMP knob or frequency knob, are not accepted. (These operations only work to
 109 
release display-off when the low-power mode is set to ON. For details of the low-power
mode, refer to chapter 3.15.5, “Low-power Mode.”)
3.15.2.1 GPIB Settings
(1) Press the [MENU] key illuminates this key and then operate the [↑] key, [↓] key or frequency
knob to display (VFD)1: SYSTEM MORE→ . (The “SYSTEM” characters are blinking.)
(2) Press the [→] key to enter the SYSTEM detail menu.
(VFD)1: OUTCONTROL ## appears. (The “OUTCONTROL” characters are blinking.)
Operate the [↑] key, [↓] key or the frequency knob to display
(VFD)1: GPIB ADDRESS
## .
(The “GPIB” characters are blinking.)
Setting the address
(3) Press the [→] key twice to cause ## to blink, and then operate the [↑] key, [↓] key or
frequency knob to set the address.
(Setting range:0 to 30)
For example, to set the address to 6, implement settings such that
(VFD)1: GPIB ADDRESS 6 appears. After the address has been set, press the [←] key
to cause ADDRESS to blink.
(4) Setting the delimiter
With the “ADDRESS” characters blinking, press the [↓] key or operate the frequency knob to
display (VFD)1: GPIB DELIM YY .
Press the [→] key to cause YY to blink. While blinking, operate the [↑] key, [↓] key or
frequency knob to set the delimiter.
(Setting range: CR+LF or LF)
(5) Press the [MENU] key to return to the normal display mode.
*
Settings become effective as soon as the parameter is changed.
If the panel settings are INI after the power is turned on, the settings are initialized at the time
of each power turning on. If LAST is set, the settings that were effective at the time of the
previous power shutdown will be effective.
(Refer to chapter 3.15.3 "Setting at the POWER ON".)
3.15.2.2 RS232 Settings
(1) Press the [MENU] key illuminates this key and then operate the [↑] key, [↓] key or frequency
.
knob to display (VFD)1: SYSTEM MORE→
(The “SYSTEM” characters are blinking.)
 110 
(2) Press the [→] key to enter the SYSTEM detail menu.
(VFD)
OUT CONTROL
## appears.
(The “OUT CONTROL” characters are blinking.)
(3) Setting the baud rate
With the “OUT CONTROL” characters blinking, operate the [↑] key, [↓] key or frequency
knob to display (VFD) RS RATE ### .
Press the [→] key twice to cause ### to blink, and then operate the [↑] key, [↓] key or
frequency knob to set the baud rate.
(Setting range:300, 600, 1200, 2400, 4800, 9600, 19200)
For example, to set the baud rate to 9600, implement settings such that
(VFD)1: RS RATE
9600BPS appears.
After the baud rate has been set, press the [←] key to cause RATE to blink.
(4) Setting the data length
With the “RATE” characters blinking, operate the [↓] key or frequency knob to display (VFD)
RS LENGTH
#BIT . (The “LENGTH” characters are blinking.)
Press the [→] key twice to cause #BIT to blink, and then operate the [↑] key, [↓] key or
frequency knob to set the data length.
(Setting range:8 bits , 7 bits)
After the data length has been set, press the [←] key to cause the “LENGTH” characters to
blink.
(5) Setting the parity
With the “LENGTH” characters blinking, operate the [↓] key or frequency knob to display
(VFD) RS PARITY
### . (The “PARITY” characters are blinking.)
Press the [→] key to cause #### to blink, and then operate the [↑] key, [↓] key or frequency
knob to set the parity.
(Setting range: NONE, ODD, EVEN)
For example, to set the parity to “NONE”, implement settings such that
(VFD) RS PARITY
NONE appears.
After the parity has been set, press the [←] key to cause PARITY to blink.
(6) Setting the stop bit
With the PARITY characters blinking, operate the [↓] key or frequency knob to display (VFD)
RS STOP-BIT #BIT . (The “STOP-BIT” characters are blinking.)
Press the [→] key to cause #BIT to blink, and then operate the [↑] key, [↓] key or frequency
knob to set the stop bit.
 111 
(Setting range:1 bit, 2 bits)
After the stop bit has been set, press the [←] key to cause the “STOP-BIT” characters to
blink.
(7) Press the [MENU] key to return to the normal display mode.
*
Settings become effective as soon as the parameter is changed.
3.15.3 POWER ON Settings
The status of the panel settings and output of this instrument immediately after POWER
ON can be set in the PW-ON menu.
(1) Press the [MENU] key illuminates this key and then operate the [↑] key, [↓] key or frequency
knob to display (VFD) SYSTEM MORE→ .
(The “SYSTEM” characters are blinking.)
(2) Press the [→] key to enter the SYSTEM detail menu.
(VFD)
OUT CONTROL
## appears.
(The “GRIB” characters are blinking.)
(3) Panel settings immediately after POWER ON
With the “OUT CONTROL” characters blinking, operate the [↑] key, [↓] key or frequency
knob to display (VFD) PW-ON SETUP ### . (The “PW-ON” characters are blinking.)
Press the [→] key twice to cause ### to blink, and then operate the [↑] key, [↓] key or
frequency knob to select the panel settings immediately after POWER ON.
(Setting range:LAST, INI)
If (VFD) PW-ON SETUP LAST is set, the next time power is turned on this instrument will
start up with the settings that were effective at the time of the previous power shutdown.
If (VFD) PW-ON SETUP INI is set, immediately after power is turned on this instrument will
startup with the initialized settings.
After the setting is complete, press the [←] key to cause SETUP to blink.
(4) Setting of output immediately after POWER ON
With the “SETUP” characters blinking, operate the [↑] key, [↓] key or frequency knob to
display (VFD) PW-ON OUT ### .
Press the [→] key to cause ### to blink, and then operate the [↑] key, [↓] key or frequency
knob to set the waveform output state immediate after POWER ON.
(Setting range:LAST, OFF)
 112 
If (VFD) PW-ON OUT LAST is set, the next time power is turned on the ON/OFF status
of the waveform output will be the same as the status immediately prior to the previous
power shutdown.
If (VFD) PW-ON OUT OFF is set, immediately after power is turned on the ON/OFF status
of the waveform output will always be OFF.
(5) Press the [MENU] key to return to the normal display mode.
3.15.4 Beep Sounds
The key-push sound when a key is pressed and the error beep sound when an error occurs
can be set to ON or OFF in the BEEP menu.
(1) Press the [MENU] key illuminates this key and then operate the [↑] key, [↓] key or frequency
. (The “SYSTEM” characters are blinking.)
knob to display (VFD) SYSTEM MORE→
(2) Press the [→] key to enter the SYSTEM detail menu.
(VFD) OUT CONTROL
## appears. (The “OUT CONTROL” characters are blinking.)
(3) Setting the key-push sound
With the “OUT CONTROL” characters blinking, operate the [↑] key, [↓] key or frequency
knob to display (VFD) BEEP KEYPUSH ## .
Press the [→] key twice to cause ## to blink, and then operate the [↑] key, [↓] key or
frequency knob to set the key-push sound to ON or OFF.
If set to ON, the key-push beep will sound when a key is pressed. If set to OFF, no beep will
sound when keys are pressed.
After the setting is complete, press the [←] key to cause KEYPUSH to blink.
(4) Setting the error beep sound
With the “KEYPUSH” characters blinking, operate the [↑] key, [↓] key or frequency knob to
display (VFD) BEEP ERROR ## .
Press the [→] key twice to cause ## to blink, and then operate the [↑] key, [↓] key or
frequency knob to set the error beep sound to ON or OFF.
If set to ON, an error beep is sounded and a operational error message appears when an
error occurs. If set to OFF, only the operational error message appears; no beep is sounded.
3.15.5 Low-power Mode
This instrument’s low-power mode can be set in the LOW-POWER menu. Here, if there
is no key input for a specific time interval, the display turns completely off to conserve
power.
 113 
(1) Press the [MENU] key illuminates this key and then operate the [↑] key, [↓] key or frequency
. (The “SYSTEM” characters are blinking.)
knob to display (VFD) SYSTEM MORE→
(2) Press the [→] key to enter the SYSTEM detail menu.
(VFD) OUT CONTROL ## appears. (The “OUT CONTROL” characters are blinking.)
(3) Setting the time until entering the low-power mode
With the “OUT CONTROL” characters blinking, operate the [↑] key, [↓] key or frequency
knob to display (VFD) LOW-POWER ### .
Press the [→] key to cause ## to blink, and then operate the [↑] key, [↓] key or frequency
knob to set the time interval.
(Setting range:OFF, 10 min, 20 min, 30 min, 40 min, 50 min, 60 min)
For example, when (VFD) LOW-POWER 30min is set, if there is no key input or knob
operation for a time interval of 30 minutes, the display turns completely off and the
low-power mode is entered. Pressing any key or rotating the knob will restore the display.
*
Even if in the remote mode, operating a key or the knob will restore the display. However,
since the system will remain in the remote mode, the action corresponding to that key
operation is not performed.
3.15.6 Frequency range (FREQ-RANGE)
This instrument's frequency range is switched.
(1) Press the [MENU] key illuminates this key and then operate the [↑] key, [↓] key or frequency
. (The “SYSTEM” characters are blinking.)
knob to display (VFD) SYSTEM MORE→
(2) Press the [→] key to enter the SYSTEM detail menu.
(VFD) OUT CONTROL #### appears. (The “OUT CONTROL” characters are blinking.)
(3) Setting the frequency range
With the “OUT CONTROL” characters blinking, operate the [↑] key, [↓] key or frequency
knob to display (VFD) FREQ-RANGE #### .
Press the [→] key to cause #### to blink, and then operate the [↑] key, [↓] key or frequency
knob to set FAST or SLOW.
FAST:
High-speed mode (a frequency range is from 10mHz to 15MHz)
Sine wave, Square wave
10mHz to 15MHz
Triangular wave, Lamp wave
10mHz to 100kHz
 114 
and Pulse wave
ARB
SLOW:
10mHz to 1.6MHz.
Low-speed mode
(for all waveforms the frequency range is from 1mHz to 100kHz.)
Note
When the frequency range is switched, this instrument is initialized.
The status of the panel setting immediately after POWER ON can be set in the PW-ON to be
start-up SETUP LAST. (VFD) PW-ON SETUP LAST
When the frequency range is switched by the REMOTE command, the setting of GPIB and
RS-232 is not initialized, but the setting of the above-mentioned immediately after POWER
ON returns to INI so when POWER ON next, the setting of GPIB and RS-232 is initialized.
Therefore, when the frequency range is switched by the REMOTE command, continuously
sending the LAST command is recommended.
When the frequency range is switched by the LOCAL operation, the setting of GPIB and
RS-232 is initialized.
When the frequency range is SLOW (low-speed mode), the under mentioned restriction is
caused.
The pulse motor modulation cannot be turned on.
(Refer to "3.10.7 pulse motor modulation". )
The setting of MODE of the arbitrary waveform menu can select only the capacity priority.
(Refer to "3.12 arbitrary waveform menu". )
3.15.7 Synchronous Output (SYNC OUT)
From which channel and to which connector (rear or front side) for the synchronous signal
output are specified.
(1) Press the [MENU] key illuminates this key and then operate the [↑] key, [↓] key or frequency
knob to display (VFD)1: SYSTEM MORE→ . (The “SYSTEM” characters are blinking.)
(2) Press the [→] key to enter the SYSTEM detail menu.
(VFD)1: OUT CONTROL ## appears. (The “OUT CONTROL” characters are blinking.)
(3) Setting of synchronous output
With the “OUT CONTROL” characters blinking, operate the [↑] key, [↓] key or frequency
knob to display (VFD)1: SYNCOUT-F ## or
(VFD)1: SYNCOUT-R ## .
(The “SYNCOUT-F” and “SYNCOUT-R” characters are blinking.)
The SYNCOUT-F output of the front side is set with SYNCOUT-F.
The SYNCOUT-R output of the rear is set with SYNCOUT-R.
 115 
Press the [→] key to cause ### to blink, and then operate the [↑] key, [↓] key or frequency
knob to set the sync output of CH1 or CH2 to ON or OFF.
CH1 and CH2:
A synchronous signal of CH specified for the front side or the rear
panel is output.
OFF:
A synchronous signal of the front side or the rear panel is not output.
When SWEEP on the CH side set with SYNCOUT-R is ON.
The SWEEP SYNC signal is output to the SYNCOUT-R and to the SWEEP MARKER output
of the rear at the same time
 116 
3.16 Noise waveform
There is NOISE button in the upper row of the FUNCTION button of the front panel.
Selecting the waveform as well as other waveforms outputs the Gauss noise.
However, there are many restricted settings compared with other waveforms, and the under
mentioned features exists.
(1)
It is possible to select the noise waveform as an internal modulating waveform.
(2)
The following operation cannot be set.
(a) Setting of frequency
(b) Setting of sweep
(c) Setting of burst
Note)
(d) Setting of initial phase
(e) Waveform selection as carrier of various modulations
Note)
Using the noise waveform, the setting of the menu can be turned on but this setting
does not become effective until the waveform is changed to the non-noise waveform.
 117 
Chapter 4
Specifications
If there is no explanation, the output signals are terminated through 50Ω.
Output waveform
Sine wave, square wave, triangular wave, ramp wave, pulse wave, DC output
Gaussian noise, Arbitrary wave(4 waveforms)
Generator Frequency
Generation waveform
High-speed mode
Low-speed mode
Sine wave, square wave:
10 mHz to 15 MHz
1 mHz to 100 kHz
Triangular wave, ramp wave, pulse wave:
10 mHz to 100 kHz
1 mHz to 100 kHz
Arbitrary waveform:
100 kHz to 1.6 MHz
1 mHz to 100 kHz
Resolution Display Frequency
10 mHz or 9 digits
1 mHz or 9 digits
Display Frequency & Voltage 10 mHz or 4 digits
1 mHz or 4 digits
Accuracy:
±10 ppm
Output
No. of channels:
2 channels
Amplitude: when open
100 mVp-p to 20 Vp-p
into 50Ω termination
50 mVp-p to 10 Vp-p
Setting resolution:
3 digits (50.0 mV – 10.0 V)
DAC resolution:
12 bits
Amplitude accuracy:
(into 50Ω termination, 1 kHz, OFFSET OFF)
Modulation OFF
AM modulation
Other modulations
Sine wave
±1%
±5%
±3%
Pulse wave, triangular wave
±2%
±5%
±3%
Square wave
±3%
±7%
±5%
(in the case of a pulse wave, “H” level or “L” level
half width is 1 μs or more)
(in the case of a ramp wave, Duty is 50%)
Amplitude flatness:
(Amplitude of a 1 kHz sine wave is taken as the
reference)
Frequency
Sine wave
Square wave
±1%
±3%
100 kHz or less
±2%
±5%
over 100 kHz to 1MHz or less
±3% Note1
±5% Note1
over 1 MHz to 15 MHz or less
Note1 Up to 1 MHz in the TRIG, GATE and BURST modes
 118 
Triangular wave
±3%
--- Note2
--- Note2
Note2
The generating frequency of triangular wave is 100kHz, therefore the amplitude
flatness of “- - -” in the table does not describes.
Offset:
±10 V (where AC+DC≦ ±10.05V)
Setting range when open
±5 V (where AC+DC≦ ±5.025V)
into 50Ω termination
Setting resolution
3 digits or 1mV
Setting accuracy (for into 50Ω termination DC)
±1% of setting value ± 5 mV
Output impedance:
50Ω fixed
(when OUTPUT ON)
Sine wave spectral purity: (into 50Ω termination, OFFSET OFF)
Harmonic distortion
100 kHz or less
over 100 kHz to 1 MHz or less
over 1 MHz to 15 MHz or less
-50 dBc or less
-45 dBc or less
-35 dBc or less
Spurious (non-harmonic)
typical value except 10Vp-p.
1 Vp-p and above
DC to 100 kHz or less
-60 dBc or less
over 1 MHz to 5 MHz or less
-50 dBc or less
over 5 MHz to 15 MHz or less
-40 dBc or less
Total harmonic distortion (DC 20 kHz)
1 Vp-p and above
Below 1 Vp-p
Below 1 Vp-p
-45 dBc or less
-40 dBc or less
-40 dBc or less
0.1% or less
0.3% or less
Square wave characteristics : square wave and pulse wave
into 50Ω termination, 1MHz or less
RISE/FALL TIME
20 ns or less
Overshoot, ringing, sag
2.0%
Generation modes
CONT, TRIG, GATE
・ When CH’s OUTPUT is set to ON, generation is performed as indicated below for each
generation mode.
・ When CH’s OUTPUT is set to OFF, generation stops immediately.
*SWEEP
*BURST
*Various modulations
other than pulse motor
*Pulse motor
modulations
CONT
enable
enable
enable
enable
TRIG
enable
enable
---
enable
GATE
enable
--enable
--* This function can not be allowed to set at the same time, but only AM and SWEEP is
possible.
 119 
BURST, SWEEP
Continuous (CONT) OFF
BURST (Note 1)
Action
Continuous generation
Repeated generations for the number of cycles set
with ON BURST count as well as stops for the
number of cycles set with OFF BURST count
Repeated SWEEP according to INT and TIME
SWEEP
settings
TRIG activated generation for only 1 cycle (Initial
Triggered (TRIG)
OFF
phase can be set.)
(Note 1)
TRIG activated generation for the number of
BURST
cycles set with ON BURST count
SWEEP
TRIG activated one-time SWEEP
Gate (GATE)
OFF
Generation for TRIG (GATE) input interval
(Note 1)
BURST
Invalid setting
SWEEP
One-time SWEEP during TRIG (GATE) input
(Note 1) In the case of a sine wave or square wave, the waveform and amplitude
flatness cannot be guaranteed for frequencies above 1 MHz.
TRIG Response Time
Square wave:
Pulse wave:
High-speed mode
5% of period +350ns or less
Low-speed mode
period/16384 + 2.7µs or less
High-speed mode
800 ns + period/16384 or less
Low-speed mode
period/16384 + 2.7µs or less
TRIG OUT
TRIG Response
time
OUTPUT
TRIG/GATE Input
Input level:
H: 2.1V min
L: 0.9V max
Minimum width:
100 ns
Input impedance:
1 kΩ or more
Duty
Resolution:
Square wave
5-15 MHz
40 to 60% (0.1% resolution)
Below 5 MHz
20 to 80% (0.1% resolution)
Ramp wave, pulse wave
0% to 100% (0.1% resolution)
Accuracy(High-speed mode):
Square wave (half width)
±1% ± 5 ns
Pulse wave (half width)
±1%± 5 ns (where the half width is 1μs or more)
Phase
 120 
Function:
The generation start phase and stop phase are set in following modes:
During TRIG, GATE modes
When SWEEP is ON and operation after the
stop frequency for sweeping is set to generation
stop
When BURST is ON
Setting range:
±359.9°
Resolution:
0.1°
SWEEP
Function:
Frequency curve
Linear or log
SWEEP direction
UP or DOWN (start frequency, stop frequency
setting for sweeping)
Operation after stop frequency for sweeping
Maintain stop frequency or stop the generation
Rear panel signal outputs:
SWEEP sync signal
Outputs a “H” level signal during the transition
from the start frequency until the stop frequency
for sweeping.
H: 3.76V or more
SWEEP marker
L: 0.44V or less(no load)
Outputs a “H” level signal during the transition
from the start frequency until the marker
frequency.
H: 3.76V or more
L: 0.44V or less(no load)
Generation Modes:
CONT, TRIG, GATE
All are possible.
CONT
Repeat time can be set from 1 ms to 500 s
(where the setting is at least SWEEP time + 0.1
ms or more).
TRIG
SWEEP starts at each TRIG input. (However,
TRIG signals input during the SWEEP time
interval are ignored.)
GATE
SWEEP is repeated each time the GATE (TRIG)
input goes to a “effective level” level. (However,
if the GATE input goes to a “ineffective level”
level during the SWEEP time interval, SWEEP is
terminated.)
 121 
SWEEP range:
Output waveform
High-speed mode
Low-speed mode
Sine wave, square wave
10 mHz to 15 MHz
1 mHz to 100 kHz
Triangular wave, ramp wave,
1 mHz to 100 kHz
1 mHz to 100 kHz
10 mHz to 1.6 MHz
1 mHz to 100 kHz
pulse wave
Arbitrary waveform
SWEEP time:
Setting range:
(Note)
1 ms to 500 s (See note.)
If generation stop (STOP) is set, generation stops in the immediate
vicinity of the initial phase after reaching the stop frequency for
sweeping.
Linear SWEEP in the DOWN direction is performed according to the
following table.
High-speed mode: SWEEPTIME(s)≧2/Stop frequency for sweeping(Hz)
Low-speed mode:
SWEEPTIME(s)≧0.1/Stop frequency for
sweeping(Hz)
BURST
Function:
・ Valid when the generation mode is CONT or TRIG and when SWEEP and
Pulse Motor Modulation is OFF.
CONT
Generates for the number of cycles set with the
ON BURST count, stops for the number of
cycles set with the OFF BURST count, and then
repeats.
TRIG
Each time there is an input to TRIG, generates
for the number of cycles set with the ON BURST
count, and then stops. (TRIG signals input
during generation are ignored.)
・ Generation starts and stops at the phase set as the initial phase setting.
BURST count settings:
ON BURST count
1 to 65536 cycles
OFF BURST count
1 to 65536 cycles
 122 
MODU(modulation)
Function
・Modulation type
・Carrier
・Modulation wave
AM, FM, PM, PWM, FSK, and PSK
Sine wave, Square wave, Pulse wave, Triangular wave,
Ramp wave, and Arbitrary waveform
(However, PWM’s carrier is only the pulse wave.)
Internal waveform:
Sine wave, Square wave, Pulse wave, Triangular wave, Lamp
wave, Noise, Arbitrary waveform
External waveform:
AM can be performed the external modulation.
External modulation except AM needs the option.
AM modulation
・Carrier
High-speed mode:
Low-speed mode:
・Internal modulation
Modulation frequency
High-speed mode:
10mHz to15MHz(sine wave and square wave)
10mHz to1.6MHz(arbitrary waveform)
10mHz to100kHz (triangular wave, ramp wave,
and pulse wave)
1mHz to100kHz(above-mentioned all waveforms)
10mHz to1MHz(sine wave, square wave, and
arbitrary waveform)
10mHz to100kHz (triangular wave, ramp wave,
and pulse wave)
Low-speed mode:
1mHz to100kHz (above-mentioned all waveforms)
Modulation wave DUTY: Square wave; 20.0% to80.0%
(square wave, pulse wave, ramp wave)
Pulse wave, ramp wave; 0.0% to100.0%.
Setting resolution; 0.1%
・External modulation
Modulation wave band: DC to 1MHz
Modulation sensitivity
100% is modulated by ±2VpK.
・Modulation density:
0% to120% (modulation depth)
FM modulation
・ Carrier
High-speed mode :
10mHz to15MHz(sine wave and square wave)
10mHz to 1.6MHz(arbitrary waveform)
10mHz to100kHz (triangular wave, ramp wave, and
pulse wave)
1mHz to100kHz(all waveforms)
Low-speed mode :
・Internal modulation
Modulation frequency:
10mHz to100kHz (internal all modulation waveform)
Modulation wave DUTY: Square wave 20.0% to 80.0%
(square wave, pulse wave, ramp wave)
Pulse wave and ramp wave 0.0% to100.0%.
Setting resolution; 0.1%
・Input A/D resolution
8bit
 123 
・External modulation (when the option is installed)
Input voltage:
±2V
Modulation wave band: DC to 100kHz
・Phase deviation:
10mHz to 7.5MHz(High-speed mode)
1mHz to 50kHz(Low-speed mode)
・Setting resolution:
10mHz or six digits (High-speed mode )
1mHz or six digits (Low-speed mode)
PM modulation
・ Carrier
High-speed mode:
10mHz to 15MHz(sine wave and square wave)
10mHz to 1.6MHz(arbitrary waveform)
10mHz to100kHz (triangular wave, ramp wave, and
pulse wave)
1mHz to 100kHz(above-mentioned all waveforms)
Low-speed mode:
・Internal modulation
Modulation frequency:
10mHz to100kHz (internal all modulation waveform)
Modulation wave DUTY: Square wave 20.0% to 80.0%
(square wave, pulse wave, ramp wave)
Pulse wave and ramp wave 0.0% to100.0%.
Setting resolution: 0.1%
・ External modulation (when the option is installed)
Modulation wave band: DC to 100 kHz
Input voltage
±2V
Phase deviation
Proportional to the phase deviation by±2V
Input A/D resolution
8bit
・Phase deviation:
±360°
・Setting resolution
0.1°
・Modulation wave DUTY:
Square wave 20.0% to 80.0%
Pulse wave and ramp wave 0.0% to100.0%
Setting resolution; 0.1%
PWM modulation
・Carrier:
10mHz to100kHz(Only the pulse wave)
・Internal modulation
Modulation frequency:
10mHz to100kHz
Modulation wave DUTY: Square wave 20.0% to80.0%
(square wave, pulse wave, ramp wave)
Pulse wave and ramp wave 0.0% to100.0%.
Setting resolution; 0.1%
・External modulation (when the option is installed)
Modulation wave band
DC to 100 kHz
Input voltage
±2V
Phase deviation
Proportional to the phase deviation by±2V
Input A/D resolution
8bit
・Variable range of DUTY:
1.0% to 99.0%
・Setting resolution:
0.1%
FSK modulation
・ Shift frequency
High-speed mode:
10mHz to 15MHz(sine wave and square wave)
 124 
Low-speed mode:
・Number of keys:
・Setting resolution:
10mHz∼1.6MHz(arbitrary waveform)
10mHz to100kHz (triangular wave, ramp wave, and
pulse wave)
1mHz to100kHz (above-mentioned all waveforms)
2
10mHz or six digits (High-speed mode ) and 1mHz or
six digits(Low-speed mode )
・Internal modulation
Key rate:
10mHz to100kHz (High-speed mode ) and 1mHz to100kHz
(Low-speed mode )
DUTY:
0 to100%(available 0.1% step)
・External modulation (when the option is installed)
Input frequency:
to1MHz of
Input voltage:
H: 2.1V min
L:0.9V max
PSK modulation
・ Shift frequency
High-speed mode :
Low-speed mode:
・Number of keys:
・phase shift
・Set resolution:
・Internal modulation
Key rate:
10mHz to15MHz(sine wave and square wave)
10mHz to 1.6MHz(arbitrary waveform)
10mHz to100kHz (triangular wave, ramp wave, and pulse wave)
1mHz to 100kHz(With all waveforms)
2
±359.9°
0.1°
10mHz to100kHz (High-speed mode)
1mHz to100kHz (Low-speed mode)
DUTY:
0 to100%( available 0.1% step)
・External modulation (when the option is installed)
Input frequency :
DC to 1MHz
Input voltage:
H: 2.1V min
L:0. 9V max
Pulse motor control function
This function is possible only for PMC option SG-507 installation and in the High-speed mode.
・CW and CCW terminals
Output voltage:
Open collector output, maximum voltage is +50V
Maximum output current: -100mA
Frequency:
DC to100kHz
・IN1 and IN2 terminal
Input voltage:
H: 3.15V Min
L: 1.35V Max
Input impedance:
5kΩ or more
Minimum width:
10μs.
・MODE:
LIN-A,LIN-B,ARB-A,ARB-B
・Initial frequency (F1):
10mHz to100kHz
・Maximum frequency (F2):
10mHz to100kHz
(However, initial frequency ≦ maximum frequency.)
・UP time:
1ms to 45s
・DOWN time:
1ms to 45s
・1st wave count (note 1):
1 to 16777216(Only at the ARB-B and LIN-B)
 125 
・STOP wave count (note 2):
(Note 1)
1 to16777216
The following conditions must be satisfied.
F1 is the setting value of an initial frequency.
F2 is the setting value of maximum frequency, and where “UP” is the time until maximum
frequency,
UP ≦ When 60ms
60ms < When UP
(Note 2)
1ST count > UP×(F1+F2)/2 + 6ms×F2
1ST count > UP×(F1+F2)/2 + UP×0.1×F2
The following conditions must be satisfied.
During LIN-A mode and ARB-A mode
F1 is the setting value of an initial frequency.
F2 is the setting value of maximum frequency.
UP≦When 60ms
STOP count > UP×(F1+F2)/2 + 6ms×F2
When UP＞60ms
STOP count > UP×(F1+F2)/2 + UP×0.1×F2
During LIN-B mode and ARB-B mode
F1 is the setting value of an initial frequency.
F2 is the setting value of maximum frequency.
DOWN≦When 60ms
STOP count > DOWN×(F1+F2)/2 + 6ms×F2
60ms < When DOWN
STOP count > DOWN×(F1+F2)/2 + DOWN×0.1×F2
 126 
Bank change
Bank for output waveform
・Bank is to change the output waveforms automatically by triggering set beforehand
・Count of changing bank:
2 to 4
・Trigger of changing bank:
Internal, Count of the output waveform: 1 to 8192
Time; 10ms to 500s (note)
External; trigger input
(input specified with TRIG SEL)
・Changing waveform:
Arbitrary waveform
・Generation mode:
Only CONT and TRIG are possible.
(note)Bank is invalid for generation mode TRIG.
Arbitrary waveform generation function
・Waveform memories:
・One waveform's memory capacity:
Capacity priority mode:
Four waveforms(not volatile memory)
Max. 16kW
Thins out by the frequency of the generation
(Refer to details to end of a book "About ARB")
Jitterless priority mode: As for the memory capacity, refer to the number of
points a cycle on table 2.
・Vertical resolution:
12bit
・Remote control
Both direction is controlled by GPIB or RS232 for
an arbitrary waveform.
・Maximum frequency:
1.6MHz
Table 2
This table is the correspondence between the frequency of an arbitrary and the number of
data points with each cycle in the jitterless priority mode.
Frequency, f
No. of data points per cycle
800kHz ≺ f ≦ 1.6MHz
8
400kHz ≺ f ≦ 800kHz
16
200kHz ≺ f ≦ 400kHz
32
100kHz ≺ f ≦ 200kHz
64
50kHz ≺ f ≦ 100kHz
128
25kHz ≺ f ≦ 50kHz
256
10kHz ≺ f ≦ 25kHz
512
5kHz ≺ f ≦ 10kHz
1024
21kHz ≺ f ≦ 5kHz
2048
1kHz ≺ f ≦ 2kHz
4096
500Hz ≺ f ≦ 1kHz
8192
10mHz ≺ f ≦ 500Hz
16384
Setup memories
Count of the setting
Setup recall:
POWER ON
9 (not volatile memory)
Selection from nine setup memory
selection setting state beforehand
 127 
Setting
OUTPUT
Display
Vacuum Fluorescent Display :
LAST: Finality state prior to POWER OFF
INI: Initialization setting
LAST: Finality state prior to POWER OFF
OFF: when POWER ON, OUTPUT is off.
16 digits (5×7 dot matrix)
I/O terminal
Front panel
CH1 output (50Ω)
CH2 output (50Ω)
SYNCOUT-F output
H:1.0V or more, L:0.3V or less (At 50Ω terminal) CH1 and CH2 can be selected
Rear panel.
TRIG1 / GATE1 input
TRIG2 / GATE2 input
Input voltage:
Input impedance:
Input voltage range:
SYNCOUT-R output
Input voltage:
H: 2.1V or more,
1kΩ or more
0V to 5V
L: 0.9V or less
CH1 and CH2 can be selected, however, when SWEEP ON,
the triggering signal for the SWEEP is output.
H: 3.75V or more L: 0.44V or less (at a no load)
SWEEP marker output:
Input voltage:
Marker output of channel specified with SYNCOUT-R
H: 3.75V or more L: 0.44V or less (at a no load)
External modulation input:
±2.4Vmax (absolute maximum ratings of a input voltage :
±5V)
Input impedance: Approx. 1MΩ
Remote Control
RS232:
Full remote functions (For details, refer to the Remote Control
volume.)
GPIB:
Full remote functions (For details, refer to the Remote Control
volume.)
Power Supply
AC Voltage:
AC100 V ± 10%
Power supply frequency:
50/60/400Hz
Supply voltage change:
Voltage other than 100 V is available as a factory option
(110V, 220V and 240V)
Power consumption:
Maximum 100 VA
Dimensions
Approx. 210W×99H×403L mm (Refer to Dimensions view)
 128 
Weight
Approx. 5.5 kg
Environment Conditions
Warm up time:
30 minutes or more
Operating temperature and humidity:
0℃ to 40℃, 85% R.H or less (no condensation)
Storage temperature and humidity:
-20 ℃ to 60 ℃ , 90% R.H or less (no
condensation)
Accessories Included
Power cord (1), Operation Manual (1)
2. Supply voltage change:
Voltage other than 100 V is available as a factory
option (110V, 220V and 240V)
 129 
Dimensions View
 130 
Appendix
Contents
1
2
3
ABOUT ARB .......................................................................................................................................A-1
1.1
MODES ..............................................................................................................................................A-1
1.2
ARB DATA GENERATION METHOD ..................................................................................................A-3
MODULATION OF ARB DATA TO IMPLEMENT MOTOR SPEED CONTROL ...........................A-4
2.1
PULSE MOTOR CONTROL BY FM MODULATION .................................................................................A-4
2.2
DC MOTOR CONTROL BY PWM MODULATION...................................................................................A-6
PULSE MOTOR MODULATION (PMC OPTION SG-507)...............................................................A-8
3.1
PMC OPTION ENABLES THE FOLLOWING ..........................................................................................A-8
3.2
OVERVIEW OF PULSE MOTOR MODULATION ......................................................................................A-8
3.3
SETTINGS WHEN PULSE MOTOR MODULATION IS TURNED ON..........................................................A-9
3.4
DETAILS OF THE PULSE MOTOR MODULATION FUNCTION .................................................................A-9
3.4.1
Control (CTL)...........................................................................................................................A-9
3.4.2
Modes .....................................................................................................................................A-11
3.4.2.1
A-type sequence (LIN-A, ARB-A) ..................................................................................A-12
3.4.2.2
B-type sequence (LIN-B, ARB-B) ..................................................................................A-18
3.4.3
Ascending curve, Descending curve (UP-CRV, DW-CRV) ..................................................A-25
3.4.4
Initial frequency, Maximum frequency (L=, H=) ................................................................A-25
3.4.5
Accelerating time, Decelerating time (UP, DOWN)............................................................A-25
3.4.6
Number of pulses until the start of deceleration (1ST) ......................................................A-25
3.4.7
Number of pulses until generation stops (STP) ..................................................................A-26
3.4.8
Wait time (WAIT) for reciprocating operation.....................................................................A-26
Appendix
Appendix
1
About ARB
ARB is the three-letter abbreviation of “arbitrary waveform.”
This instrument is capable of storing ARB data for 4 waveforms as 16384W (16kW) of fixed-length data
having 12-bit vertical resolution.
The main unit does not contain any built-in functions for creating or editing ARB data. Waveform data is
generated externally and binary data is transferred via the RS-232 or GPIB interface. The SG-4115 ARB
application is provided free of charge to simplify the generation, editing and transfer of ARB data. For additional
details, please refer to the Iwatsu website or contact your local sales office.
1.1
Modes
There are two arbitrary waveform output modes, a capacity-priority mode (NORMAL) and a jitterless mode
(JTLESS). Characteristics of each mode are listed in the chart below. (Refer to chapter 3.12, “Arbitrary
Waveform Menu”)
Jitterless mode
MODE
CONT or
Capacity-priority
mode
TRIG
GATE
Jitter
Jitter generated for 1
system clock
Not
generated
Memory capacity
(Refer to separate
Small
Large
(same
mode)
as
Large
capacity-priority
sheet)
Bandwidth
Low
High
Abrupt waveform
Rise time will be slow, but waveform
will be smooth
Ringing will occur
Note: In the case of the low-speed mode, the mode will always change to the capacity-priority mode but
characteristics will be the same as for the TRIG in the jitterless mode.
<About the memory capacity used and jitter>
This instrument uses DDS technology to generate the arbitrary waveforms, and therefore changing the read
rate of waveform data stored in memory will have the effect of changing the frequency.
In the capacity-priority mode, as much memory data as possible is readout during 1 cycle of the waveform,
and therefore, jitter corresponding to 1 system clock (approx. 23.3ns for this instrument) is generated in the
waveform.
However, in the jitterless mode, when the generation mode is CONT or GATE, jitter can be prevented
because 1 cycle of the waveform uses only a certain number of data points for each frequency (refer to the
chart below).
 A-1 
Appendix
When the generation mode is TRIG, the same memory capacity is used as for the capacity-priority mode.
Memory capacity for CONT and GATE during the jitterless mode
Frequency, f
No. of data points per cycle
800kHz ≺ f ≦ 1.6MHz
8
400kHz ≺ f ≦ 800kHz
16
200kHz ≺ f ≦ 400kHz
32
100kHz ≺ f ≦ 200kHz
64
50kHz ≺ f ≦ 100kHz
128
25kHz ≺ f ≦ 50kHz
256
10kHz ≺ f ≦ 25kHz
512
5kHz ≺ f ≦ 10kHz
1024
21kHz ≺ f ≦ 5kHz
2048
1kHz ≺ f ≦ 2kHz
4096
500Hz ≺ f ≦ 1kHz
8192
10mHz ≺ f ≦ 500Hz
16384
In the case of the capacity-priority mode or in the case of the jitterless mode and TRIG,
if “f” denotes the frequency and “d” denotes the number of data points per cycle, then
when frequency (f) > 2621.44Hz, ｄ＝INT(2^32 / (f*100))
or ｄ＝INT(2^32 / (f*100)) +1
For each cycle, it is not possible to determine which of the two
values “d” will assume.
INT is an integer value and any digits to the left of the decimal
place are truncated
and, when frequency (f) ≦ 2621.44Hz, d = 16384
<Bandwidth and waveform>
Because the capacity-priority mode and jitterless mode use different noise filters, the frequency bandwidths
are also different.
The capacity-priority mode has a bandwidth of approximately 10MHz, and ringing occurs in the case of an
abrupt waveform such as a squarewave.
The jitterless mode has a narrow bandwidth of approximately 1.4 MHz and waveform rise times are delayed
but, as can be seen in the figure below, there is no ringing.
Capacity-priority mode
Jitterless mode
 A-2 
Appendix
1.2
ARB Data Generation Method
ARB data is configured from 16,384 points of binary data having integer values ranging from 0 to 4095
(centered about 2048). For example, in the case of a waveform having a 2Vp-p amplitude with no offset, as can
be seen in the diagram below, the data value of 1 corresponds to –1V, 2048 corresponds to 0V and 4095
corresponds to +1V.
(In the above example, the data value of 0 corresponds theoretically to -1.0005V)
4095(+1V)
2048 (0V)
1 (-1V)
0
8191
16383
The 16384 data points are output as a single cycle. When ARB is set to output at 1kHz, if the 16384 data
points contain 1 cycle, that waveform will also be output at 1kHz; however if the data contains 3 cycles, the
corresponding waveform will be output at 3kHz.
The number of waveform data points is fixed at 16384. Note that incorrect operation may result if more or
less data is transferred during waveform transmission.
 A-3 
Appendix
2
Modulation of ARB Data to Implement Motor Speed Control
ARB waveform data can be modulated to control the speed of a pulse motor or DC motor.
2.1
Pulse motor control by FM modulation
Speed control for a pulse motor is generally performed by varying the frequency of a pulse wave. Speed
control can be freely implemented by generating an arbitrary speed pattern with ARB and using the FM
modulation function.
The FM modulation parameters are center frequency (C) and deviation frequency (D). In the case where
ARB data is a modulated wave and FM modulation is performed, the frequency is controlled as indicated in the
chart below.
ARB data value
Output frequency
4095
C+D
2048
C
1
C-D
The ARB data value and output frequency vary according to the proportions indicated in the above chart.
This fact can be utilized to perform various patterns of frequency control.
Pulse motor speed is generally controlled by the parameters of initial frequency and maximum frequency.
First an arbitrary speed control pattern ARB waveform is generated in which ARB data value 1 is the initial
frequency and 4095 is the maximum frequency, and then that waveform data is transferred to this instrument.
From the ARB menu, the transferred memory number is selected in advance. (Refer to chapter 3.12,
“Arbitrary Waveform Menu”)
Next, the following formulas are used to calculate the FM modulation menu parameters of center frequency
(C) and deviation frequency (D). (Refer to chapter 3.10.2, “FM Modulation”)
Center frequency (C)
＝
Deviation frequency (D) ＝
（Initial frequency + Maximum frequency )
2
（Maximum frequency − Initial frequency )
2
A specific setting example is described on the next page.
 A-4 
Appendix
Example of an ARB waveform, shown in the figure below, that is varied from a 2kHz initial frequency to a
10kHz maximum frequency
ARB data value
Frequency
4095
10kHz
3072
8kHz
2048
6kHz
1024
4kHz
1
2kHz
0
4096
8192
6144
2048
122844
10240
16383
14336
ARB data address
The time is set by the modulation frequency (F). ARB data addresses are cycled from 0 to 16,383 during the
time for 1 cycle of the modulation frequency.
In the above example, if the modulation frequency (F) is set to 1Hz, the frequency changes stepwise at
intervals of 1/8 second.
FM modulation menu settings for the above example are listed below. (Refer to chapter 3.10.2, “FM
Modulation”)
SOURCE
INT
Center frequency, C=
6kHz
((10kHz + 2kHz) /2)
Deviation frequency, D=
4kHz
((10kHz - 2kHz) /2)
Modulation frequency, F =
1Hz
SHAPE
ARB(*)
(*): From the ARB menu, specify in advance the transferred memory number.
(Refer to chapter 3.10, “Arbitrary Waveform Menu”)
 A-5 
Appendix
2.2
DC motor control by PWM modulation
PWM modulation is commonly used to control the speed of DC motors.
Duty can be freely controlled by generating an arbitrary speed pattern with ARB and using the PWM
modulation function. This instrument uses the PWM modulation parameters of duty minimum (MIN) and duty
maximum (MAX)
In the case where ARB data is the modulation wave and PWM modulation is performed, the duty is
controlled as indicated in the chart below.
ARB data value
Duty of output wave
4095
MAX
1
MIN
The ARB data value and duty of the output waveform vary according to the proportions indicated in the
above chart. This fact can be utilized to perform duty control in various patterns.
An arbitrary speed control pattern ARB waveform is generated in which ARB data value 1 is the minimum
speed and 4095 is the maximum speed, and then that waveform data is transferred this instrument.
From the ARB menu, the transferred memory number is selected in advance. (Refer to chapter 3.12,
“Arbitrary Waveform Menu.”)
Next, the PWM modulation parameters are set, with MIN as the duty value for the minimum speed of the DC
motor and MAX as the duty value for the maximum speed. (Refer to chapter 3.10.4, “PWM Menu.”)
In the actual duty settings, it is even OK if MIN＞MAX. In such a case, of course, the duty will decrease as
the ARB data values increase.
A specific setting example is described below.
 A-6 
Appendix
Example: An ARB waveform, shown in the figure below, is varied from a 10% duty (MIN=10%) to a 60% duty
(MAX=60%)
ARB data value
Duty ratio
4095
60%
3276
50%
2457
40%
1638
30%
819
20%
1
10%
0
5461
2730
10922
16383
8191
13652
ARB data address
The time is set by the modulation frequency (F). ARB data addresses are cycled from 0 to 16,383 during the
time for 1 cycle of the modulation frequency.
In the above example, if the modulation frequency (F) is set to 1Hz, the duty changes stepwise at intervals of
1/6 second.
PWM modulation menu settings for the above example are listed below. (Refer to chapter 3.10.4, “PWM
Modulation Menu”)
SOURCE
INT
MIN
10%
MAX
60%
Modulation frequency, F = 1Hz
SHAPE
ARB(*)
(*): From the ARB menu, the transferred memory number is specified in advance.
(Refer to chapter 3.10, “Arbitrary Waveform Menu”)
 A-7 
Appendix
3
Pulse Motor Modulation (PMC Option SG-507)
3.1
PMC option enables the following
Equipping this instrument with the PMC option SG-507 enables the following:
1. When a pulse wave is selected, the CH1 is output to CW and CH2 is output to CCW as open-collector
outputs.
(Even if the pulse motor modulation function is not turned ON, if the selected waveform is a pulse
wave,
it
will
be
Maximum voltage: 0 to +50V,
output
from
the
rear
panel.)
Maximum current: −100mA
2. Pulse motor modulation is enabled. (The modulation menu will have an increased number of
selections.)
3.2
Overview of pulse motor modulation
Pulse motor modulation is a function that is able to control motor acceleration while managing the pulse
count.
It is assumed that the rear panel outputs of the SG-507 are connected to the driver of a pulse motor. (For
details of the connection method, refer to the description of rear input pins in chapter 3.10.7, “Pulse Motor
Modulation Settings”)
If the pulse motor is to be run at high speed, acceleration and deceleration must be carefully controlled
according to the load to prevent the loss of synchronization. This modulation function is convenient in such
cases.
The operating sequence has basically 2 modes, an A-type and a B-type, and control can be performed in
combination with the external sensor input.
With the pulse motor modulation, either one or both of CH1 or CH2 may be ON.
When only one CH is ON, the concept of CW and CCW vanishes, and each CH will operate independently.
(Thus, there is no reciprocating operation.)
When both channels are ON, the operation among channels is synchronized. In this instrument, CH1 is for
CW and CH2 is for CCW. These channels support reciprocating motion of the pulse motor.
In addition to the CW/CCW method, the PLS/DIR (pulse and direction control) method of driving is also
supported, simply by changing the menu settings.
 A-8 
Appendix
3.3
Settings when pulse motor modulation is turned ON
When pulse motor modulation is turned ON, the following settings are forcibly changed.
Selected waveform : Pulse wave
Oscillation mode : CONT or TRIG (in the case of GATE, the mode will change to CONT)
If both channels are ON, settings will be the same for both channels.
(CH2 will change to the generation mode set with CH1.)
TRIGSEL setting : When CH1 pulse motor modulation is ON: TRIG1
When CH2 pulse motor modulation is ON: TRIG2
(The polarity in effect prior to turning ON the pulse modulation function will be
maintained. Note that while the pulse modulation function is ON, even if there is an
attempt to change the TRIGSEL setting, the setting will not change until the pulse
motor modulation function is turned OFF.
3.4
Details of the pulse motor modulation function
The pulse motor modulation function can perform various operations according to the control method and
operating mode. First, the control method will be described.
3.4.1
Control (CTL)
The driver side of a pulse motor is generally configured either as having 2 systems of pulse inputs for
forward and reverse rotation such as for the CW/CCW method, or having a pulse input for rotation and a signal
input for rotational direction control such as for the PLS/DIR method.
The control method is selected according to the type of driver connection.
When the pulse motor modulation function has been turned ON for both channels, the menu settings will be
the same for both CH1 and CH2. (The settings of the CH turned on last will be effective.)
Settings are made from the CTL menu. (Refer to 3.10.7 MT menu)
CW/CCW : To be selected in the case of CW/CCW control
Only CH1 is ON: Output to CH1 and rear panel CW
Only CH2 is ON: Output to CH2 and rear panel CCW
Both channels are ON: Output to CH1/CH2 and rear panel CW/CCW
PLS/DIR+: To be selected in the case of PLS/DIR. The initial setting of DIR is ON(*).
Only CH1 is ON: Output to CH1 and rear panel CW
Only CH2 is ON: Output to CH2 and rear panel CCW
Both channels are ON: Pulse signal is output to rear panel CW, DIR signal is output to
CCW
DIR signal is ON(*) during CW interval and OFF(*) during CCW interval.
(The signal output from front panel CH1 and CH2 outputs will be the same as in
the case of the CW/CCW method.)
 A-9 
Appendix
PLS/DIR−: To be selected in the case of PLS/DIR. The initial setting of DIR is OFF(*).
Only CH1 is ON: Output to CH1 and rear panel CW
Only CH2 is ON: Output to CH2 and rear panel CCW
DIR signal is ON for both channels: Pulse signal is output to rear panel CW, DIR signal is
output to CCW
DIR signal is ON(*) during CW interval and OFF(*) during CCW interval.
(The signal output from front panel CH1 and CH2 outputs will be the same as in
the case of the CW/CCW method.)
(*): Rear panel CW (PLS) /CCW (DIR) outputs are all open-collector outputs.
Therefore, the outputs are expressed in terms of the ON or OFF state of the output transistors, instead of
using the logic level expressions of “H” or “L.”
Open collector outputs are usually pulled-up externally so that the ON state will be at a “L” level and the
OFF state will be at a “H” level.
(Refer to the description of rear input pins in chapter 3.10.7, “Pulse Motor Modulation Settings”)
 A - 10 
Appendix
3.4.2
Modes
The pulse motor modulation sequence is set as follows.
The following four selections are available, depending on whether the acceleration / deceleration curve is
linear or ARB, and whether the sequence is A-type or B-type.
LIN-A: A straight line is used for the acceleration/deceleration curve; the sequence is A-type
LIN-B: A straight line is used for the acceleration/deceleration curve; the sequence is B-type
ARB-A: An ARB waveform (or S-shaped curve) is used for the acceleration / deceleration curve; the
sequence is A-type
ARB-B: An ARB waveform (or S-shaped curve) is used for the acceleration / deceleration curve; the
sequence is B-type
When pulse motor modulation has been turned ON for both channels, the mode settings will be shared by
both channels. (The settings of the CH turned ON last will be effective.)
If ARB-A or ARB-B is selected, it is also necessary to select the acceleration/deceleration curves with the
UP-CRV and DW-CRV menus.
LIN-A and ARB-A share the same sequence (A-type).
Similarly, LIN-B and ARB-B also share the same sequence (B-type).
Each sequence type is described below.
 A - 11 
Appendix
3.4.2.1 A-type sequence (LIN-A, ARB-A)
<When only one CH has pulse motor modulation function turned ON>
The following type of example is supported. (The belt conveyor is assumed to be rotated by a motor.)
The motor decelerates in response to sensor input and stops after a fixed number of pulses.
Fixed number of pulses
to INn(*3) input
Sensor
Deceleration
1. If the generation mode is CONT, generation begins immediately after the setting is made.
If the generation mode is TRIG, generation begins when a TRIG signal is input.
2. During the time interval specified by “UP,” generation accelerates from the “Ｌ” frequency to the
frequency specified by “H.”
In the case of LIN-A, the accelerating curve is a straight line.
In the case of ARB-A, the accelerating curve is a waveform selected from the UP-CRV
menu.
(If ARB-S is selected, the accelerating curve will be S-shaped.)
3. If INn(*３) is input during generation at the “H” frequency, generation will decelerate to the frequency
specified by “L” in the time interval specified by “DOWN.”
In the case of LIN-A, the decelerating curve is a straight line.
In the case of ARB-A, the decelerating curve is a waveform selected from the UP-CRV menu.
(If ARB-S is selected, the decelerating curve will be S-shaped.)
4. Oscillation stops after reaching the pulse count specified by STP.
5. If the generation mode is CONT, generation will restart after the time interval specified by WAIT has
passed.
If the generation mode is TRIG, generation will restart when another TRIG signal is input. (Since there is
no
direction
control,
pulses
are
generated
from
the
same
output.)
In this mode, note that if INn(*３) is not input in step 3 above, generation will continue at the maximum
frequency and will stop suddenly upon reaching the pulse count specified by STP.
Moreover, if the STP count is set as a very small number, generation may stop before the start of
deceleration by the INn(*３) input. Therefore, the STP count must be calculated carefully.
A timing chart is shown below. (The vertical axis for CW or CCW output is frequency.)
 A - 12 
Appendix
This chart is also applicable to the case when control (CTL) is set to PLS/DIR±.
STP count
H=
CW or CCW output
L=
UP
WAIT (*1)
DOWN
TRIG (*2) input
IＮn (*3) input
(*1) Valid when generation mode is CONT
(*2) Valid when generation mode is TRIG
The CH1: TRIG1 and CH2: TRIG2 correspondence is fixed, regardless of the TRIGSEL
menu settings.
(*3) When CH1 is ON, the rear panel IN2 input initiates deceleration
When CH2 is ON, the rear panel IN1 input initiates deceleration
The INn input can be from a sensor such as a photosensor.
IN1 polarity becomes the same as TRIG2 polarity, and IN2 polarity becomes the same as TRIG1
polarity
Note that INn input is not accepted during the UP time interval.
Description and units of parameter settings in the above chart:
(Each CH operates independently according to its settings.)
L=
Initial frequency (Hz)
H=
Maximum frequency (Hz)
UP
Accelerating time (s)
DOWN
Decelerating time (s)
WAIT
Time to wait until restarting (s) (Valid when generation mode is CONT)
STP
Number of pulses until generation stops (pulse count)
<When both channels have pulse motor modulation function turned ON>
The following type of example is supported. (The belt conveyor is assumed to be rotated by a motor.)
 A - 13 
Appendix
Fixed number of pulses
1:STP
2:STP
Sensor
CW
to IN1 input
Sensor
to IN2 input
CCW
Deceleration
Deceleration
The motor operates with reciprocating motion, then decelerates in response to sensor input and stops after
a fixed number of pulses.
The signal from the CW-direction deceleration sensor is input to IN2.
The signal from the CCW-direction deceleration sensor is input to IN1.
(Note that the positioning will go out of alignment unless the 1:STP count equals the 2:STP count.)
1. If the generation mode is CONT, generation begins on the CW side immediately after the setting is made.
If the generation mode is TRIG, generation begins on the CW side when a TRIG1 signal is input.
If the control (CTL) setting is PLS/DIR+, a pulse signal is output to the CW-side (PLS), and the CCW-side
(DIR)
turns
ON.
If the control (CTL) setting is PLS/DIR−, a pulse signal is output to the CW-side (PLS) and the
CCW-side (DIR) turns OFF.
2. During the “UP” time interval, generation accelerates from the “Ｌ” to “H” frequencies specified with CH1.
(The accelerating curve is the same as in step 2 on page 11.)
3. If IN2 is input during generation at the above “H” frequency, generation will slow to the “L” frequency
during
the
“DOWN”
time
interval.
(The decelerating curve is the same as in step 3 on page 11.)
4. Oscillation
If
the
control
stops
after
(CTL) setting
reaching
the
is PLS/DIR+,
the
STP
CCW-side
count
set
(DIR)
output
with
will
CH1.
turn
OFF.
If the control (CTL) setting is PLS/DIR−, the CCW-side (DIR) output will turn ON.
5. After the WAIT time set with CH1 has passed, the CCW side begins to oscillate.
6. During the “UP” time interval, generation accelerates from the “Ｌ” frequency to the “H” frequency that
have
been
specified
for
CH2.
(The accelerating curve is the same as in step 2 on page 11.)
7. If IN1 is input during generation at the above “H” frequency, generation will slow to the “L” frequency
during
the
“DOWN”
time
interval.
(The decelerating curve is the same as in step 3 on page 11.)
8. Oscillation
stops
after
reaching
the
 A - 14 
STP
count
set
with
CH2.
Appendix
If the control (CTL) setting is PLS/DIR+, the CCW-side (DIR) output will turn ON again.
If the control (CTL) setting is PLS/DIR−, the CCW-side (DIR) output will turn OFF again.
9. If the generation mode is CONT, generation will restart after the WAIT time specified with CH2 has
passed.
If the generation mode is TRIG, generation will restart when another TRIG1 signal is input.
In this mode, note that if INn is not input in step 3 or step 7 above, generation will continue at the
maximum frequency and will stop suddenly upon reaching the pulse count specified by STP.
Moreover, if the STP count is set as a very small number, generation may stop before the start of
deceleration by the INn(*3) input. Therefore, the STP count must be calculated carefully.
Timing charts for the CW/CCW and PLS/DIR± methods are shown below.(In those charts, the vertical
axes for CW and CCW of the CW/CCW method and for PLS of the PLS/DIR± method are frequency.)
 A - 15 
Appendix
Fixed number of pulses
1:STP
1:H=
CW output
1:L=
1:UP
1:DOWN 1:WAIT
Fixed number of pulses
2:STP
2:H=
CCW output
2:L=
(*1)
2:UP
2:DOWN 2:WAIT
TRIG1 input (*2)
Rear panel IN1 input
Rear panel IN2 input
CW/CCW Method
(*1) Valid when generation mode is CONT
(*2) Valid when generation mode is TRIG
Fixed at TRIG1, regardless of the TRIGSEL menu setting.
IN1 (IN2) input can be from a sensor such as a photosensor.
IN1 polarity becomes the same as TRIG2 polarity, and IN2 polarity becomes the same as TRIG1
polarity.
Note that INn input is not accepted during the UP time interval.
Description and units of parameter settings in the above chart:
CW settings are the value of the CH1 parameter settings.
CCW settings are the value of the CH2 parameter settings.
L=
Initial frequency (Hz)
H=
Maximum frequency (Hz)
UP
Accelerating time (s)
DOWN
Decelerating time (s)
WAIT
WAIT time for reciprocal operation (s)
STP
Number of pulses until generation stops (pulse count)
 A - 16 
Appendix
Fixed number of pulses
Fixed number of pulses
1:STP
2:STP
2:H=
1:H=
CW output (PLS)
1:L=
2:L=
(*1)
1:UP
1:DOWN 1:WAIT 2:UP
CCW output (DIR+)
ON
CCW output (DIR−)
OFF
2:DOWN 2:WAIT
OFF
ON
ON
OFF
TRIG input (*2)
Rear panel IN1 input
Rear panel IN2 input
PLS/DIR± Method
1:*** indicates parameters set with CH1
2:*** indicates parameters set with CH2
(*1) Valid when generation mode is CONT
(*2) Valid when generation mode is TRIG
Fixed at TRIG1, regardless of the TRIGSEL menu setting.
IN1 (IN2) input can be from a sensor such as a photosensor.
IN1 polarity becomes the same as TRIG2 polarity, and IN2 polarity becomes the same as TRIG1
polarity.
Note that IN1 (IN2) input is not accepted during the UP time interval.
Description and units of parameter settings in the above chart:
CW settings are the value of the CH1 parameter settings.
CCW settings are the value of the CH2 parameter settings.
L=
Initial frequency (Hz)
H=
Maximum frequency (Hz)
UP
Accelerating time (s)
DOWN
Decelerating time (s)
WAIT
WAIT time for reciprocal operation (s)
STP
Number of pulses until generation stops (pulse count)
 A - 17 
Appendix
3.4.2.2 B-type sequence (LIN-B, ARB-B)
<When only one CH has pulse motor modulation function turned ON>
The following types of examples are supported. (The belt conveyor is assumed to be rotated by a motor.)
(Example 1)
Fixed number of pulses
1ST
STP
to Inn input
Sensor
Deceleration
After a fixed number of pulses (1ST count), deceleration begins and then the sequence is stopped by the
sensor.
After deceleration begins, this sequence is stopped upon either reaching the STP count, or by sensor input,
whichever occurs first.
Therefore, the STP count setting can be used as a failsafe measure in case the sensor detection is
unsuccessful.
(Example 2)
Fixed number of pulses
1ST
STP
Deceleration
Without using a sensor, deceleration begins after a fixed number of pulses (1ST count) and then the
sequence is stopped after another fixed number of pulses (STP count).
 A - 18 
Appendix
1. If the generation mode is CONT, generation begins immediately after the setting is made.
If the generation mode is TRIG, generation begins when a TRIG signal is input.
2. During the time interval specified by “UP,” generation accelerates from the “Ｌ” frequency to the
frequency specified by “H.”
In the case of LIN-B, the accelerating curve is a straight line.
In the case of ARB-B, the accelerating curve is a waveform selected from the UP-CRV
menu.
(If ARB-S is selected, the accelerating curve will be S-shaped.)
3. Upon reaching the pulse count specified by 1ST, the frequency slows to the “L” frequency within the
DOWN time interval.
In the case of LIN-B, the decelerating curve is a straight line.
In the case of ARB-B, the decelerating curve is a waveform selected from the UP-CRV
menu.
(If ARB-S is selected, the decelerating curve will be S-shaped.)
4. After deceleration begins, the generation is stopped by either INn input or by reaching the pulse count
specified by STP, whichever occurs first.
5. If the generation mode is CONT, generation will restart after the time interval specified by WAIT has
passed.
If the generation mode is TRIG, generation will restart when another TRIG signal is input.
there is no direction control, pulses are generated from the same output.)
 A - 19 
(Since
Appendix
A timing chart is shown below. (The vertical axis for CW or CCW output is frequency.)
This chart is also applicable to the case when control (CTL) is set to PLS/DIR±.
1ST
STP
Fixed number of pulses
H=
CW or CCW output
※
L=
UP
DOWN
WAIT (*1)
TRIG input (*2)
Rear panel INn input (*3)
※
Stopped by either rear panel INn input or by reaching the STP count, whichever occurs earlier.
(*1) Valid when generation mode is CONT
(*2) Valid when generation mode is TRIG
The CH1:TRIG1 and CH2:TRIG2 correspondence is fixed, regardless of the TRIGSEL
menu settings.
(*3) If CH1 is ON, rear panel IN2 input will cause the sequence to stop
If CH2 is ON, rear panel IN1 input will cause the sequence to stop
INn input can be from a sensor such as a photosensor.
IN1 polarity becomes the same as TRIG2 polarity, and IN2 polarity becomes the same as TRIG1
polarity.
Note that INn input is not accepted during the UP time interval.
Description and units of parameter settings in the above chart:
(Each CH operates independently according to its settings.)
L=
Initial frequency (Hz)
H=
Maximum frequency (Hz)
UP
Accelerating time (s)
DOWN
Decelerating time (s)
1ST
Number of pulses until deceleration begins (pulse count)
STP
Number of pulses until generation stops (pulse count)
WAIT
Wait time for reciprocal operation (s)
 A - 20 
Appendix
<When only one CH has pulse motor modulation function turned ON>
The following type of example is supported. (The belt conveyor is assumed to be rotated by a motor.)
(Example 1)
The sequence is performed as a reciprocating operation wherein after a fixed number of pulses (1ST count),
Fixed number of pulses
1:1ST
1:STP
2:STP
2:1ST
to IN1 input
Sensor
CW
Sensor
to IN2 input
CCW
Deceleration
Deceleration
deceleration begins and then a sensor stops the motion.
After deceleration begins, the motion is stopped upon either reaching the STP count, or by sensor input,
whichever occurs first.
Thus, the STP count setting for each channel can be used as a failsafe measure in case sensor detection is
unsuccessful.
(Example 2)
Fixed number of pulses
1:1ST
1:STP
2:STP
2:1ST
CW
CCW
Deceleration
Deceleration
The sequence is performed as a reciprocating operation without using sensors wherein after a fixed number
of pulses (1ST count), deceleration begins and then after another fixed number of pulses (STP count), the
motion is stopped.
(Note that the positioning will go out of alignment unless the 1:1ST＋1:STP count equals the 2:1ST+2:STP count. )
 A - 21 
Appendix
1. If the generation mode is CONT, generation begins on the CW side immediately after the setting is made.
If the generation mode is TRIG, generation begins on the CW side when a TRIG1 signal is input.
If the control (CTL) setting is PLS/DIR+, a pulse signal is output to the CW-side (PLS), and the CCW-side
(DIR)
turns
ON.
If the control (CTL) setting is PLS/DIR−, a pulse signal is output to the CW-side (PLS) and the
CCW-side (DIR) turns OFF.
2. During the “UP” time interval, generation accelerates from the “L” to “H” frequencies specified with CH1.
(The accelerating curve is the same as in step 2 on page M-19.)
3. When the 1ST count set with CH1 is reached, generation automatically begins to slow. The generation
decelerates to the “L” frequency during the “DOWN” time interval. (The decelerating curve is the same as
in step 3 on page M-19.)
4. Oscillation stops when the STP count set with CH1 is reached, or there is IN2 input, whichever occurs
first.
If
the
control
(CTL) setting
is PLS/DIR+,
the
CCW-side
(DIR)
output
will
turn
OFF.
If the control (CTL) setting is PLS/DIR−, the CCW-side (DIR) output will turn ON.
5. After the WAIT time set with CH1 has passed, the CCW side begins to oscillate.
6. During the “UP” time interval, generation accelerates from the “L” to “H” frequencies specified with CH2.
(The accelerating curve is the same as in step 2 on page M-19.)
7. When the 1ST count set with CH1 is reached, generation automatically begins to slow. The generation
decelerates to the “L” frequency during the “DOWN” time interval. (The decelerating curve is the same as
in step 3 on page M-19.)
8. Oscillation stops when the STP count set with CH2 is reached, or there is IN1 input, whichever occurs
first.
If the control (CTL) setting is PLS/DIR+, the CCW-side (DIR) output will turn ON again.
If the control (CTL) setting is PLS/DIR−, the CCW-side (DIR) output will turn OFF again.
9. If the generation mode is CONT, generation will restart after the WAIT time set with CH2 has passed.
If the generation mode is TRIG, generation will restart when another TRIG1 signal is input.
Timing charts for the CW/CCW and PLS/DIR± methods are shown below.
(In those charts, the vertical axes for CW and CCW of the CW/CCW method and for PLS of the PLS/DIR±
method are frequency.)
 A - 22 
Appendix
Fixed number of pulses
1:1ST
1:STP
1:H=
※
CW output
1:L=
1:UP
1:DOWN
1:WAIT
Fixed number of pulses
2:1ST
2:STP
2:H=
※
CCW output
2:L=
(*1)
2:UP
2:DOWN
2:WAIT
TRIG1 input (*2)
Rear panel IN1 input
Rear panel IN2 input
CW/CCW Method
※
Stopped by either rear panel INn input or by reaching the STP count, whichever occurs earlier.
1:*** indicates parameters set with CH1
2:*** indicates parameters set with CH2
(*1) Valid when generation mode is CONT
(*2) Valid when generation mode is TRIG
Fixed at TRIG1, regardless of the TRIGSEL menu setting.
IN1 (IN2) input can be from a sensor such as a photosensor.
(TTL level) IN1 polarity becomes the same as TRIG2 polarity, and IN2 polarity becomes the same
as TRIG1 polarity.
Note that IN1 (IN2) input is not accepted during the UP time interval.
Description and units of parameter settings in the above chart:
CW settings are the value of the CH1 parameter settings.
CCW settings are the value of the CH2 parameter settings.
L=
Initial frequency (Hz)
H=
Maximum frequency (Hz)
UP
Accelerating time (s)
DOWN
Decelerating time (s)
WAIT
Wait time for reciprocal operation (s)
1ST
Number of pulses until deceleration begins (pulse count)
STP
Number of pulses until generation stops (pulse count)
 A - 23 
Appendix
Fixed number of pulses
1:1ST
Fixed number of pulses
1:STP
2:STP
2:1ST
2:H=
1:H=
※
CW (PLS) output
1:L=
2:L=
1:DOWN
※
1:WAIT
2:DOWN
2:UP
ON
ON
CCW output (DIR＋)
(*1)
2:WAIT
OFF
OFF
CCW output (DIR−)
ON
OFF
TRIG1 input (*2)
Rear panel IN1 input
Rear panel IN2 input
PLS/DIR± Method
※
Stopped by either rear panel INn input or by reaching the STP count, whichever occurs earlier.
1:*** indicates parameters set with CH1
2:*** indicates parameters set with CH2
(*1) Valid when the generation mode is CONT
(*2) Valid when the generation mode is TRIG
Fixed at TRIG1, regardless of the TRIGSEL menu setting.
IN1 (IN2) input can be from a sensor such as a photosensor.
IN1 polarity becomes the same as TRIG2 polarity, and IN2 polarity becomes the same as TRIG1
polarity.
Note that IN1 (IN2) input is not accepted during the UP time interval.
Description and units of parameter settings in the above chart:
CW settings are the value of the CH1 parameter settings.
CCW settings are the value of the CH2 parameter settings.
L=
Initial frequency (Hz)
H=
Maximum frequency (Hz)
UP
Accelerating time (s)
DOWN
Decelerating time (s)
WAIT
Wait time for reciprocal operation (s)
1ST
Number of pulses until deceleration begins (pulse count)
STP
Number of pulses until generation stops (pulse count)
 A - 24 
Appendix
3.4.3
Ascending curve, Descending curve (UP-CRV, DW-CRV)
In the case of ARB-A or ARB-B, the mode settings must select an accelerating curve (UP-CRV) and
decelerating curve (DW-CRV).
The available selections are ARB0 to ARB3, and ARB-S.
ARB-S
If an accelerating curve has been selected, this curve automatically ascends with an
S-shaped contour.
Similarly, if a decelerating curved has been selected, this curve automatically descends with
an S-shaped contour.
ARB0 to ARB3
Selected when it is desired to perform control with an arbitrary acceleration or deceleration
pattern.
In this case, it is necessary to generate the pattern in advance and store it in an arbitrary
waveform memory for later use.
When generating a pattern, refer to the description of Acceleration/deceleration Curve
Generation using ARB Waveform on page M-27, as the pattern generation method has rules
that must be followed.
3.4.4
Initial frequency, Maximum frequency (L=, H=)
If the pulse motor is to be accelerated or decelerated, set the initial frequency and maximum frequency.
3.4.5
Setting resolution
6 digits
Setting range
from 10mHz to 100kHz
Restrictions
Valid settings will obey the relation L= ≦ H=
Accelerating time, Decelerating time (UP, DOWN)
If the pulse motor is to be accelerated or decelerated, set the ascend time and descend time.
Setting resolution
Setting range
3.4.6
3 digits
1ms to 45s
Number of pulses until the start of deceleration (1ST)
1ST can only be set when the mode is LIN-B or ARB-B.
Sets the pulse count that begins with the start of generation, continues through the acceleration to the
maximum frequency, and ends with the start of deceleration.
Note that the setting of the 1ST count may be restricted depending on the ascend time (UP), initial frequency
(L=), and maximum frequency (H=) settings.
Setting range
1 to 16,777,216
Restrictions: When UP ≦ 60ms,
1ST ＞{UP×(L + H) ／2}＋(6ms×H)
When UP ＞ 60ms, 1ST ＞{UP×(L + H) ／2}＋(UP×0.1×H)
 A - 25 
Appendix
3.4.7
Number of pulses until generation stops (STP)
The definition of the STP parameter will change depending on the mode setting.
In the case of LIN-A or ARB-A: STP is the pulse count from the start of generation until stopping
In the case of LIN-B or ARB-B: STP is the pulse count from the start of deceleration until stopping
In the case of LIN-B and ARB-B, the generation stops when there is an INn input or when the STP count is
reached, whichever occurs first.
Note that the setting of the STP count may be restricted depending on the ascend time (UP) or descend time
(DOWN), initial frequency (L=) and maximum frequency (H=) settings.
Setting range
1 to 16,777,216
Restrictions
When the mode setting is LIN-A or ARB-A
When UP ≦ 60ms, STP ＞{UP×(L + H)／2}＋(6ms×H)
When UP ＞ 60ms, STP ＞{UP×(L + H)／2}＋(UP×0.1×H)
When the mode setting is LIN-B or ARB-B
When DOWN ≦ 60ms, STP ＞{DOWN×(L + H) ／2}＋(6ms×H)
When DOWN ＞ 60ms, STP ＞{DOWN×(L + H) ／2}＋(DOWN×0.1×H)
3.4.8
Wait time (WAIT) for reciprocating operation
As indicated in the table below, the WAIT parameter will change depending on the generation mode and
whether both channels have pulse motor modulation ON.
Oscillation mode
Pulse motor modulation
CONT
Only 1 channel is ON
Oscillation repeats at every WAIT time interval as set
by the CH that is ON
CONT
Both channels are ON
When changing from CW to CCW, generation
restarts after the CH1-side WAIT time. When
changing from CCW to CW, generation restarts after
the CH2-side WAIT time.
TRIG
Only 1 channel is ON
Oscillation restarts by TRIG input and therefore the
WAIT setting is irrelevant.
TRIG
Both channels are ON
When changing from CW to CCW, generation
restarts after the CH1-side WAIT time. When
changing from CCW to CW, the CH2-side WAIT time
is irrelevant since generation restarts by TRIG input.
Setting resolution:
3 digits
Setting range:
10ms to 100s
 A - 26 
Appendix
・ Acceleration/deceleration curve generation using ARB waveform
In cases where it is desired to implement pulse motor modulation with a unique acceleration/deceleration
pattern, follow the rules of this section to generate the pattern.
（１） Generation of accelerating curve
4095
2048
0
0
8191
16383
Rule 1:
Use the entire 16KW of ARB waveform memory to generate the accelerating curve.
Rule 2:
The relationship between frequency and waveform value is as follows.
Initial frequency:
0
Maximum frequency: 4095
It is not necessary to use the full range from 0 to 4095, but if not used, alignment with the initial
frequency (L) and maximum frequency (H) will be lost.
The proportional relationship between frequency and vertical axis Y value is as follows.
Frequency corresponding to Y value ＝ (H − L) × Y ／4095 + L
Rule 3:
Set the value at address 0 to the same value as at address 16,383 of the decelerating curve.
(In the above example diagram, address 0 has a value of 0.)
Set the value at address 16,383 to the same value as at address 0 of the decelerating curve.
(In the above example diagram, address 16,383 has a value of 4095.)
Note that if pulse motor modulation is implemented using an ARB waveform that does not conform to the
above rules, the frequency will become discontinuous.
 A - 27 
Appendix
Generation of decelerating curve
4095
2048
0
0
8191
16383
Rule 1:
Use the entire 16KW of ARB waveform memory to generate the decelerating curve.
Rule 2:
The relationship between frequency and waveform value is as follows.
Initial frequency:
0
Maximum frequency: 4095
It is not necessary to use the full range from 0 to 4095, but if not used, alignment with the initial
frequency (L) and maximum frequency (H) will be lost.
The proportional relationship between frequency and vertical axis Y value is as follows.
Frequency corresponding to Y value ＝ (H − L) × Y ／4095 + L
Rule 3:
Set the value at address 0 to the same value as at address 16,383 and thereafter of the accelerating
curve.
(In the above example diagram, address 0 has a value of 4095.)
Set the value at address 16,383 to the same value as at address 0 of the accelerating curve.
(In the above example diagram, address 16,383 has a value of 0.)
Note that if pulse motor modulation is implemented using an ARB waveform that does not conform to the
above rules, the frequency will become discontinuous.
 A - 28 
Appendix
MEMO
 A - 29 