PMSB-U28 series
PMSA-U56 series
○Motor running current attenuation rate setting (SW1: 5 pin)
Mounting plate
Motor running current set to attenuated value when current control signal (CUS） is ON.
Possible to change the motor running
current by current control signal.
Effective for power saving.
(Default setting : ON 50％ of Motor running current setting[SW2])
Hole for pilot
Mounting plate
Bolt X 4
PMSA-U42 series
Hole for pilot
Set pin No.6-8 referring to the following chart.
Set motor holding current with auto power
down enabled. Motor current in nonoperation can be set separately from its
running current with motor holding current
setting. This setting is effective for motor
temperature rise in motor holding
condition.
If the holing current setting is too high,
the motor generates excessive
temperature rise. Set motor holding
（Default setting SW1 Pin No.6-8 ON
current as follows, if specified setting is
- 0.2[A]）
not required.
Bolt X 4
PMSA-U60 series
Hole for pilot
Mounting plate
Bolt X 4
○Motor holding current setting （SW1: 6 - 8 pin）
Mounting plate
Hole for pilot
Bolt X 4
Power supply preparation
○Motor running current setting （SW2）
Set SW2 referring to the following
Prepare enough current capacity power supply referring to the following chart. Using
less capable power supply may cause unexpected motor malfunction such as improper
operation at high speed running or slow starting up time. Also power supply endures the
inductive load is recommended, as the driver regenerates the current to power supply.
○ Plug the connector securely after confirming connector orientation. Improper connection
may cause motor malfunction or the motor damage.
○ Unplug connector pushing the lock part of the connector housing.
○ Use the cable as short as possible and do not wind or bundle the remainders.
○ The maximum input frequency may decrease if the cable length is too long.
○ Shield the cables with conductive tape or braided shield is recommended if the noise
became a problem.
Function settings
Connect the power supply and the controller referring the following examples. Connections
must be done under the condition of the power supply turned off.
※ Improper connections may cause motor and/or peripherals damages, or human injuries.
● Connection example : Driver and power supply/Controller/Motor
Power
Driver
●
Pulse signal input voltage setting （SW3,4）
Set input voltage of CW（PLS）, CCW(DIR) pins. SW4
"OFF"
"ON"
CCW(DIR) pin
SW3
(Default setting: SW3, 4 OFF - Input voltage 24Ｖ)
※ Please select the voltage based on the signal CW(PLS)/ CCW(DIR).
Improper setting may cause driver damages.
● Driver operating condition setting （SW1, 2)
CW(PLS) pin
Set step division, pulse input mode, motor current setting.
"ON"
"OFF"
SW1
SW2
1(RD)
○Step division switch setting （SW1： 1- 3 pin)
Set SW 1, pin No. 1 to 3 referring to the following setting chart.
2(BK)
3(BN)
CCW pulse signal
(Direction signal)
4(OR)
5(YL)
Motor current
6(SK)
7(GR)
Input
signal
2 pulse
input mode
Motor running
1(YL)
2(WT)
3(RD)
4(OR)
5(BK)
6(BN)
11(WT)
Excitation timing
12(BL) signal
Connect 3 cables to the driver. Plug and unplug connectors must be done with power
supply turned off. Motor to Driver , Driver signal and driver power supply cables are
hooked up by the connectors.
Output
signal
Stepping motor
※Select SW3,4 to adjust pulse input voltage
● CN3: Signal cable connection and signal specifications
(Mating housing : JST XAP-12V-1)
following CW（PLS）/CCW（DIR） input voltage.
※Driver may be broken if input DC24V when the
setting is DC5Ｖ.
● I/O signal diagram
○ Input signal to motor driver - 1
[ CW+(PLS+)/CW-(PLS-)/CCW+(DIR+)/CCW-(DIR-) signal ]
Driver internal circuit
1 pulse
input mode
CW pulse
signal
CCW pulse
signal
Pulse signal
20μs or more
Direction
0.5s or more
Motor current
enable
Holding current
10μs or more
10μs or more
Running current
Motor current
(Holding current setting enable)
※ Wait at least 5 seconds when power is turned on again after shut down.
● Pulse waveform
Keep 20 [μs] or more for each pulse signal cycle. Also keep rising/falling edge time
within 2[μs] or shorter.
20μs or more (Less than 50khz)
2μs or
2μs or
推奨デューティ ： 50±5％
Recommended pulse duty : 50%±5%
● Excitation timing signal output
Excitation timing signal pulse is generated every 7.2 Deg. motor rotation.
For example, excitation timing signal output for 1/1 step division (full step) is as follows
below.
Controller output
Open collector
output
1/1 step division (Full step)
※ If step division set to 2, motor runs by microsteppng motion.
※Phase switches as rising edge.
※Improper step division setting may cause unexpected motor malfunction and result in
equipment damages or human injuries.
Pulse signal
※ Select SW3,4 switch to ON if use DC5V for +V, or select SW3,4 switch to OFF if use
DC24V.
○ Input signal to motor driver - 2
○ Pulse input mode setting (SW1: 4 pin)
Set SW1 pin No.4 referring to the following pulse input mode chart.
Driver internal circuit
Controller output
(Default setting : SW1 4pin ON - 2 pulse input mode)
○ 2 pulse input mode is to run the motor using CW(Clockwise)signal and
CCW(Counter clockwise)signal respectively. With CW signal input, the motor output
shaft (Viewed from the mounting surface side) rotates CW. With CCW signal input, the
motor output shaft rotates CCW .
○ 1 pulse input mode is to run the motor using pulse(PLS)signal and
direction(DIR)signal. With PLS signal input, the motor output shaft rotates and rotation
direction is controlled by DIR signal. With DIR On (Photocoupler On), the motor output
shaft rotates CW and with DIR Off (Photocoupler Off), the motor shaft rotates CCW
direction.
Motor operation
8(GN)
Motor/Power supply/Signal cable/Controller connection
● CN2: Power supply cable connection and specifications
(Mating housing : JST XAP-02V-1)
(Default setting: SW1 pin No.1 to 3 ON - Step division 1)
Power input
Connections
CN2
※ When transistor sink current is 1[mA],Vce is 0.6[V]max/sink current is10[mA],Vce
is 1.8[V]max.
● Motor operation and timing chart
CW Pulse signal
(Pulse signal)
（Default setting SW2 No.0 - 0.4[A]）
※ Keep motor surface temperature at 100 Deg.C (212 Deg.F) or
CN1
R (External resistor) >= ( (+V)
+V) - VF - Vce)
Vce) / (Transistor collector current) [Ω]
Timing chart
9(VT)
Holding current
10(PK) setting enable
CN3
※When the current exceeds 10mA, must use external resistor "R" to keep current less
than10mA. The formula of the external resistor value is as follows.
Operation
2(BK)
Controller
● CN1: Motor cable connection
（Mating housing：JST XAP-06V-1）
Driver internal circuit
1(RD)
Switch setting
Before starting the operation, make the following set up with the switch on PDSA-UK
driver board. These settings must be done with the power supply turned off.
Controller input
Connection with other peripherals
Set motor running current and adjust
motor rotating torque. The motor rotating
torque goes lower if the running current
setting is lower. Contrarily, the motor
rotating torque goes higher if the running
current setting is higher.
If the running current setting is too high,
the motor generates excessive
temperature rise. Set motor running
current as follows, if specified setting is
not required.
※ Minimum 3.0[A] power supply is recommended, when the motor driving current is not
determined.
○ Output signal from motor driver (Example)
［ EXTIM(+)/EXTIM(-) signal ]
Open collector
output
1 pulse output for each
4 pulse input
Excitation timing signal
LED indicator
PDSA-UK equips 2 LED indicators. These LED light as follows.
● Power condition indicator (POWER LED): Green
Green color LED lights when power is ON.
● Alarm indicator (ALARM LED): Orange
Orange color LED lights when excessive current, excessive heat or open winding is
detected.
※ Brackets ( ) following Pin No. shows cable color.
※ Photocoupler current at driver circuit applies 1-8[mA].
※ Please apply 5-24[V] for +V.