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G E N E R A L E L E C T R I C C O M P A N Y
D R I V E S Y S T E M S P R O D U C T D E P A R T M E N T
S A L E M , V A . 2 4 1 5 3
4 t h Editton J u n e 2 3 , 1 9 7 8
PROPRIETARY INFORMATION OF THE GENERAL ELECTRIC COMPANY
IS CONTAINED IN THESE INSTRUCTIONS
GENENil @ E L E C T R I C

CONTENTS
Introduction
I. Features
A. Physical
B. Signal Sources
1.
Millivolt
2.
Variable Frequency
39 Standard Voltage Source
4. Current/Volta,ge
5.
Test Pot and Switches
6. Sequence Switches
C. Patchboard
II. Ca.libration
A .
General
1. Connections
2. Instrumentation
3. References
4. Techniques
B.
Signal Sources
1. Thermocouple Simulation c.
Sample Calibration Procedure
III.
Revision Variation Definition
IV.
DEVICE INFORMATIOE
A .
Calibrator, I:c4g88Aloo, Shs. 3 .l-3.23
B.
1c36oo~~ss, shs. 3.0-Fl.
1c36ooscz~, Shs. 3.0-Fl.
IC36OOSVFA. Shs. 3.0-Fl.
c.
Patchboard Layout
Sheet -1
7
8
10
6
6
6
5
10
10
10
11
1 2
16
16
Page
4
4
3
4
4
17
18

Sheet - 2
$ INTRODUCTION
The SPEEDTRONIC* Control calibrator provides a convenient method of accessing important variables within a SPEEDTRONIC* control system and supplying signals to t .he
panel to simulate the input from sensors external to the panel. The calibrator
“page” and calibrator are the means for reading out and inputing signals to the control.
The calibrator is dedicated to the SPEEDTRONIC* controls by its plug-in feature and by the fact that it is powered by the control to which it is connected.
Its signal sources are universal types however; (such as millivolt, variable frequency, current and voltage) which may be used to calibrate special circuits that may be part of-a particular SPEEDTRONIC* control application.
These instructions cover the calibrator and how it may be used to calibrate a
SPEEDTRONIC* control system.
The actual procedure for calibrating and the settings are contained in the Control Specifications.
The System Elementary drawing is also needed for calibrating.
The interconnection between the calibrator and the
__-_--- -.._- -_- -_----_--_--_.__--
-..___._---___-__----------.
---
On the last sheet of this publication is a patchboard layout showing points on the patchboard which are generated within the calibrator.
The System Instruction book will be useful for both general information about the system and specific information about each piece of equipment and should be referred to in the event trouble-shooting, changes, or repair need be accomplished.
This calibrator may be used to calibrate any Mark I or Mark II Speedtronic* control panel.
The calibrator is presently in its 3rd revision, but changes have been minor.
For revision variations, refer to Section III, Revision Variation
Definition.
* Trademark of General Electric Company

"
SPEEDTRONIC* CONTROL CALIBRATOR
See Revision Variations Section III
ICF37009
Sheet - 3

I . FEATURES
. i,
A. PWSICAL
The calibrator is packaged in a carrying case with additional space available for a digital voltmeter and frequency counter.
It is connected to the SPEEDTRONIW control panel by means of 2 connector cables which plug into slots 'A" and "Brc in the calibrator and 2 slots on the "page" designated "CALIBRATOR TEST" and "AUX TEST" respectively.
Each connector cable contains 51 wires.
The circuits for power supply, signal sources etc. are built on
DIRECTOMATIW II cards and plugged into the card slot rack along with the connector cables A and 3.
Card Slot C contains SVFA on which the circuits for the 2 variable frequency oscillators are built.
Card Slot I) contains SCZh on which the 2 millivolt sources and voltage/current source are built.
The EPSS card in slot E contain a-SOVDC to-12VDC power supply.
B. SIGNAL SOURCES
1, The millivolt source is designed to simulate low level signals such as turbine exhaust thermocouples over a range 0-50MV with FINE adjustment of 23 MV.
a. There are two sources.
b.
Their respective power is derived each from one of the 3 KHZ power oscillators in the SPEEDTRONIC% page.
c. Outputs are available on patchboard @WA, C4 and C5; MVB, C6 and C7).
* Trade Nark of General Electric Co.

Sheet - 5
I .
FEATUHES - (continued)
B.
SIGNAL SOURCES - (continued) a.
"S$:c switch can be used to switch each source to either position on the patchboard.
SWITCH DOWN MV#l AT MY-A; MV#2 AT MVB
SWITCH Up MV#2 AT MVA; MV#lAT MVB
This allows the two sources to be set up at convenient end points, for instance, when calibrating gain and offset on the temperature amplifier.
e. Circuit details: IC~~OOSCZA
2. The two Variable Frequency sources are 10 to 11 volt peak to peak variable from 15 Hz to 12.5 KHZ Sine wave (66.7 millisec. to 80.0
microsec).
The sources may be used to simulate a speed signal from a"pulse tach" ma.gnetic pick-up in order to calibrate pulse rate to analog circuit and speed control loop.
a. Fine adjustment + 25OHZ.
b .
Output available on patchboard
(FRE.2, #lat Cl and FREQ #2 at Cl0 with respect to ACOM) c. Circuit 5s powered by 1c36oo~~ss MINUS jOV TO MUNUS 12V converter unless MINUS I2 VOLT supply is available in SPEEDTRONIC* control in which case MINUS 5oV is not available; it also requires plus
12V supply from SPEEDTRONIC* control.
d.
Circuit details IC36OOSVFA.

Sheet 6
_ I
I.
FEATURES - (Continued)
B.
SIGNAL SOURCES - (Continued)
3. The Standard voltage sources are approximately 6 volts and 20 millivolts.
The actual values will be recorded on the 1~3600~~~~ card on which the terminal binding posts are located.
These standard sources may be used to calibrate instruments such as voltmeter or scope.
4. The combination CURRENT/VOLTAGE source makes available a current and a voltage to simulate pressure transmitters, etc.
a. With 50 volt bus available in control: current, 0-50ma (500n MAX load); voltage 0-34VDC
With only 12 volt bus available in control: current, O-50ma (50 n MAX load); voltage 0-LIVDC b.
Sources are adjustable by coarse and fine pots marked "current".
c. On Patchboard:
Voltage source located D2
Current source located C2
To read current with voltmeter connect C2, (positive) to D2 across precision resistor (10 mv/ma).
d.
Circuit details IC~~O@SCZA
5.
There are two switches, a resistor pot configuration and a resistor configuration.
a. SW9 s.p.s.t.
switch could be used as a logic level switch
DC()M = "0" ; p12TJ = "1" ; or contact closure to P28v.
(patchboard points Fg and FlO).

Sheet - 7
I.
FJWFURJZS - (Continued)
B.
SIGNAL SOURCES - (Continued)
5. (Continued) b.
SW10 s.p.d.t. switch could be used to switch the voltmeter between the two overtemperature channels to facilitate simultaneous calibration.
(patchboard points Jl, 52, and 53).
c. Pot and resistor configuration may be used to set up a test voltage or with 3KEZ oscillator to make a test vibration signal.
d.
Resistor configuration may be used to simulate flame and no flame condition of impedance expected from detectors to "Ball park" the detector sensitivity prior to starting. The 10K connected between Pl2V and "VERY FAST" counter rate will speed a
6. There are 7 sequence switches which may be used to simulate points in the start-up mode.
Certain portions of the control are operable only when the turbine has come up to a given point during start-up.
Some or all of these switches may be wired in a given application if they are needed in order to calibrate the unit. Refer to sheet
42Iof the elementary for switch usage.
IMPORTAI'TT: These switches normally must be turned off {down) when starting up or running the turbine with the calibrator connected.

Sheet - 8
FEATURES - (Continued)
C.
PATCHBOABD
The patchboard layout is shown on the final sheet of this publication
Patchboard points are connected to circuitry within the calibrator such as sources, test switches, and components; or jacks along the right side of the calibrator to allow hook up of instruments; or through the connector cable to the SPlZEXYCRONIC* page. The points on the patchboard which are wired through the connector to the SPEEDTRONIC* pege are shown in The System Elementary for the specific control on
The 10 x 10 section of the patchboard, points Al by JlO, are connected to the SPEEDTRONIG* page through "Corm A", the "calibrate test" connector, and the remaining 5 x 10 section, points All by 515, are connected by
"Corm B", the "Aux test" connector.
1‘ On the layout sheet the pin numbers to which the input/output are connected appear as the small number in the lower left hand corner of each block.

Sheet - 9
II.
FEATURES - (Continued) c.
PATCHBOARD - (Continued)
______~~._______.
2. The "calibrate test" connector and the "auxiliary test" connector
-.--_-- - _._.-_- .----
_--.______ - _----for each unit.
These sheets name and reference the point in the circuit to which the point is connected - if it is used.
3. To facilitate working from the system elementary to the calibrator for a particular point, the coordinates on the patchboard are
___...._ ----_------~ ---.-----____

Sheet - 10
_-- -.-.-.-_~- .--__
11.
-__-___- .~
A .
GEXERAL
Once power is applied after preliminary checkout, the unit is ready for calibration.
Plug in the.calibrator and check that proper power is available at the patchboard points Al thru A6, and 3KHZ
- - -__ power oscillators A9 and A10 (refer to patchboard layout of the turbine control elementary).
1. Necessary Connections for SPlZEDTRONIC* Calibrator
Connector "A" from calibrator should be connected to "calibrate test card slot" on SPEEDTRONIC* page.
Connector "B" should be connected to "Aux. Test Card Slot" on
SPEEDIRONIC* page.
Refer to job elementary to determine location of these two card slots
- - - -
(normally shown on sheet 421 of elementary).
- - . .._
2.
--~~-__-___
-__
Other- instruments that can be suppl_i&-with-the calihratorare:
.~_ .Digit&Voltmeter. 4-Digits.-(3$ Digits)
_~_. _. _- -.-- ~-- --~------ -- -
Counter 20Hz - 8OMHz 7 Digits
In additional to the SPEEDTRONIC* calibrator, other devices that
Multi Meter - 20,000 Ohms/Volt
Such as - Triplett Model 630 *
> or Simpson Model 270
._~._--~-- .-
-1
OsciLlos_cope.~~lfor__traub.leshooting
only)
Such as - Tektronix 453
SPEEDTRONIC* Protective Logic Test Aid Module - catalog #277A6557Gl.

Sheet - 11
II. TYPICAL CALIBRATION - (Continued
A.
GENERAL - (Continued)
3. References: a) Instruction Book - Comprehensive information, one lines, locations of adjustments.
b) Job elementary diagram - Circuit, pin numbers, card location, pot. identification.
c) Turbine Control Specifications - Design and application parameters, device settings, calibration procedure.
4. Techniques and Procedures a) Use a voltmeter to determine logic level of signal.
11 (1
0 = OV to .4V (High thresho&~"O" up to 1.5~)
I1 II
1 =
4.75v to la?
b) Definition of Range, Span, Zero, Offset, Gain
Given: Exhaust temperature variation of 3000 and 1000° which produces signals of 1.83 Mv and 23.4l~V;
Signal span = 23.41 IW - 1.83 IVN = 21.58
MV
Signal range = 1.83 MV to 23.41&W
Signal zero or offset = 1.83
M V
If this signal is amplified to l.CV and 4,5V,

Sheet - 12
.--_--_____._
.
II.
TYPICAL CALIJlRATI.ON - (Continued-
A .
GENERAL - (Continued)
4. (Continued) output span = 4.5-v - l.w = 3.5v
Output range = l.W 4.5V
Output zero or offset = l.W
Amplifier gain = Output span
Input span
= 3.7.7 = .1624 v
21.5&V Mv d Adjusting "zero" and t'gaint' of an amplifier (ZERO: OFFSET)
Theoretically you should adjust the gain first, then adjust the zero because gain affects zero and zero does not affect gain.
However, since many amplifiers are not perfect and since you want to start in the right "ball park", an easier and more practical method is as follows:
Using the va,lues in the example (b) above:
1. Apply 1.83 Mv to input.
2. Adjust zero for I.W output.
3. Apply 23.41 MV to input.
4. Adjust gain for 4.5 output.

Sheet - 13
__-.-~ __. ____-..-_--.------
A. GEKERAL - (Continued)
4. (Continued) c) (Continued)
5. Apply 1.83 MV to input.
Note : Because of the gain adjust, the zero has moved. .
6. Readjust zero for l.OV output.
7. Apply 23.41 Mv to input.
8. Readjust gain for 4.5 output.
Note : The amount of readjustment decreased with each adjustment.
9. Repeat 1 to 8 until no readjustment is necessary.
d)
"Nulling" or "balancing" the summing junction.
1.
Within the stable operating range of an operational amplifier, the sum of all currents to the summing junction is zero.
2.
Many of the amplifiers used herein have integrating feedbacks.
This means that, if the net current to the summing junction is negative, the output volts will continue to rise and conversely, a net positive summing junction current will cause the output volts to continue to decrease. When the sTunming junction current is zero, the output will. stop integrating and the volts will remain constant.

Sheet - 14
_ .___.___ -.- _--. .---------
II. TYPICK'CALIBRATION - (Cont>&ued)
I
---.--
A .
GENERAL - (Continued)
4. (Continued) d) (Continued)
3. A voltmeter on the output of the amplifier can be used to determine when the integration stops. However, an easier method is to use the function indicating lights. For example, consider the temperature control card STKA and we want to set the isothermal base reference to 1OOOoF.
4 Input an exhaust temp. signal of 1OOOoF. (4.5V @ pin 17) b)
Quickly rotate and counter rotate base reference pot. R95 so that temperature control indicating light goes on and off. (Note: Pot. movement causes amplifier to integrate voltage up or down.
Light driver is voltage sensitive; above 28V = Light out and below 28V = Light on). As you rotate and counter rotate and the light goes on and off, reduce the amount of excursion until the light just stays on.
Set the pot. at the midpoint of this minimum excursion.
4 The summing junction is now "nulled" for this particular setting.

Sheet - 15
___----e-m-
II. ??@ICAL CALIBRATION - (Continued)
A.
GENERAL - (Continued)
4. (Continued) e) Inputs and Outputs
1. Frequently, the Control Specification will refer to pin numbers on various cards, for monitoring, logic forcing, or even signal insertion.
This does not mean that you should work on that pin; on the contrary, you should avoid working on the pin itself.
Rather, you should refer to the pin and the card on the Turbine Control elementary and, if possible, determine some more appropriate point, on the same point in the circuit as the pin, but physically more accessible.
For example, the point may be available on the calibrator patchboard; it may be available on a card front; it may be an incoming signal with isolation LED indication; it may be the output of a SL;EH element which has LSD indication and is forcible from its front; it may be the output of a STDC element which has IZD indication.
2. Logic Forcing
The SLEH element can be forced to a "1" or "0" from the front.
All elements may be forced "0" on the outputs, but must never be forced to "I.".
i.e.
You may jumper any logic signal to D-COM (to force "0") but must never jumper a signal to Pl2Y or Pfjiv to force "1".

Sheet - 16
--.---L_
._-__-
_ _ _ _ - _ _ - . _ .
II, TYPI~&.&..IER&TT~N - !Con%inued)
B.
SIGNAL SOURCES
The signal source outputs appear on the patchboard so that they may be connected to any other point on the patchboard by jumpering with the miniature plugs supplied with the calibrator.
Sources may be accessed for use into points not on the patchboard by patching them to large jacks such as Y?COPE", "DVM", or YTR". These jacks will accept standard "BANANA" plugs or may be wired to by clamping the wire under terminal binding post.
1.
MILLIVOLT for thermocouple simulation may be accomplished 3 ways: a.
If a cold junction compensation network is available for the particular type of thermocouple to be simulated (such a
J type Iron-Constantan; K type Chromal-alumal), it may connected with the proper thermocouple wire between the source and the
T. C. amplifier.
Standard thermocouple tables can be used to convert from the temperature desired to the'millivolts which must be measured.
b.
If the cold junction compensation network is not available the above method will work provided the ambient temperature is measured and difference between ambient and 3Z°F (which is the reference used in the tables) is subtracted from the table value of millivolts for the particular temperature desired to simulate.

Sheet - 17
____---_ ----
II. TYPICAL CALIBRATION - (Continued)
B.
SIGNAL SOURCES - (Continued)
1. c.
If a temperature indicator such as the one on the SIEEDTRONIC* control panel is available the temperature may be read directly.
The amplifiers and trips may then be set without measuring millivolts .
c.
SAMpI;E CALIBRATION PROCEDURE
The following is a brief description of the steps required to use the calibrator; as one example let us consider the case where the overspeed trip points are to be checked.
The actual detail is defined in the
Turbine Control Specification; the following is only a description of how to find your way around:
1.
Calibrator must be plugged into the panel '
2.
The panel must be powered up.
3.
Refer to the Turbine Control Elementary Index, sheet AOO, and determine which sheet the "Overspeed Protection" is located on.
4.
Refer to the Overspeed Protection circuit in the Turbine Control
Elementary
5.
Refer to the Turbine Control Specification for the details on settings and procedure.
6.
The control specification will typically say "insert a speed signal of X frequency to the Overspeed Protection Card, pins
7.
Y:, Z.+'
Refer to the elementary Overspeed Protection circuit and look for a cross reference to sheet 42~ or 42!c.
8.
Follow the cross reference to sheet 42~ or 42C and determine the corresponding calibrator patchboard location; one position

Sheet 1.8
per Overspeed Protection card. The return is via A-COM on
-. -
Patchboard Gl thru G-10.
9. Refer to sheet 42D of the elementary, the patchboard layout.
Pick out a frequency source - Cl or ClO.
10.
Jumper the frequency source to the patchboard position of step
8. The return (COM) is taken care of internally.
11.
For monitoring, jumper El to the frequency source and Fl to A-COM
(ie. Gl).
This puts the frequency signal on test jacks C?; (+) and (-); These test jacks will accept a standard plug for frequency monitoring with a counter.
12.
Adjust the frequency with the "COURSE" and "FINE" Frequency adjusting Potentiometer on the Calibrator; The potentiometers are clearly labeled.
13 l
Cheek the Overspeed Protection function as defined in the Turbine
Control Specification.
III.
REVISION VARIATION DEFINITION
__--
The calibrator is presently in its 4133revision. Changes have been minor and have been made to make the calibrator more versatile.
The revision number is not on the nameplate, but the revision of any particular calibrator is readily apparent from the following:
REVISION 1: The original form used nomenclature on the switches as illustrated on sheet 3.7
Also it has seven test jacks on the right hand side of sheet 3;‘:
REVISION 2: Added two test jacks, AUX (f), (-), wired to patchboard points
E2, F2 respectively and spaced all test jacks to take a standard size plug.
REVISION 3: The switch designations were changed from names to switch numbers,
-________ ----i.e. SW1,2 etc.
Note that the switch numbers on the calibrator drawings were
.p---- -..-- ------ - --- -- - --...-- ____
- - changed to facilitate a left to right flow of switch numbers.
__.______._ - _._~ - ._ -.--- .-- -- ----.- -- .---....-. ~_

Sheet 19 any one switch to be used for different functions from one panel to another.
The switch's function is defined on sheet 42Eof the panel elementary.
The switch numbering is as follows:
SW1
0
SW2
0
SW3
0
SW4
0
SW5
0 sw6
0
SW7
0
SW8
0
SW9
0
SW10
0
In addition to the change in switch nomenclature, 12 additional wire runs from the panel to the patchboard have been added as follows:
1 connector A: pins 49, 51 connector
B; Pins 1, 2% 23, 24, 27, 28, 29, 30, 50, 51
This further increases the capability of the calibrator. Your calibrator will have these extra runs if it has switch numbers on the nameplate; it will not have these runs if the switches have names as illustrated on sheet yl“--
----l
Any panel may be calibrated with any calibrator with the following reservations
1 limitations:
(4 Switch designation may be confusing, but are defined above.
(b)
The 3.2 interconnecting wires defined above will not be on revisions
1 and 2 and may be a problem when a Mark II Industrial panel is
(cl to be calibrated with a revision 1 and 2 calibrator. This limitation may be identified by referring toyhe-mzessheets ofXi& Pai
-----.---.-_ elementary.
A modification kit is available to take care of limitations (a) and
4
(b) where needed.
The voltage/current source on IC36OOSCZA, Rev. A is not capable of providing a 50 MA pressure signal when used on a Mark 11 panel. (It's O.K. on Mark I>.
If this signal is required for
__~-
_ _
REVISION 4: The "TEST" pot RHll was changed from a 1 turn lOOK

13
I5
I7
19
I.9
I1
1s
I7
5 1
!7.
29
31
I3
23
25
19
21
03
05
07
IS
17
09
11
13
S7l~IBOL
STD. A L T .
DCOM
ACOM
P50
P28
PI2
N12
N50
OSCA
OSCB
PsfM
WA+
MVA-
MvB+
MYB-
NOTE
MVIC s IC.NAL DEF It: If I OfI Am LOCAT ION tw4E rC%dER SUPPLIES
DIGITAL COMMIN
ANALOG COt+tJN
POSITIVE 50 VOLTS
POSITIVE 28 VOLTS
POSITIVE 12 VOLTS
CONN A
P I N No.
2
24
23
2 7 f
NEGATIVE 12 VOLTS
NEGATIVE 50 VOLTS
OSC I LLATOR A
OSC I LlATOR 8
3KC
3%
29
30
8.4 RMS (LVDT.) 26
8.4 RMS (LVOT) 28
CALlERAlCR SIGNALS
VARIABLE FREQUENCY OUTPUT t
VARIABLE FREQUENCY 1 - EXTERNAL CONTROL (SIMULATfON)
VARIABLE FREQUENCY OUTPUT 2
VARIABLE FREQUENCY 2 - EXTERNAL CONTROL (SlMlJLAT ION)
CURREM SOURCE @-5Cb@j
VOLTAGE SOURCE( &34V, SUPPLY SW; CL8, SUPPLY 12Y
CURRENT SOURCE-EXTERN CONTROL (S Ir4lJlAtlON)
MILLIVOLT SOURCE
MI LL IVOLT SOURCE
MVAL MV) W I T H S W I T C H S W - 1 DOkM
HVB:MV2 WITH SWITCH SW-1 WWJ
MYArMY WITH SWITCH SW-1 UP
MVBs.MVt W I T H S W I T C H S W - 1 ‘$
Ml LLiVOU SOURCE 1 - EXTERNAL CONTROL (SIMULATION)
PATCH BObRD
LOCAT 1 ON h4
Gl - 610
Al h2
A3
AS
A6
A9
I410
Cl
11
Cl0
12 c4
C5
C6 c7 c2 de
14
13

07
09
23
2s
19
21
27
11
1 3
15
17
49
51
45
47
39
41
43
29
3 1
33
35
37
C
A tI
0 x
8
Y
P-
4

15
17
I9
23
2s
I7
11
13
13
17
19
21
0 3
OS
SEE SH.
DI
3.6
FOR
BUSS
0 9
CONN
19A t
21A
cuw
COA-E
!iOK
6
4 i
+12” 0” -12v ,,
TRt -
CPOT
FRQt
I c3600
F P O T
SVFAt
IAOC
PATCH
S,NE 1 cyT
9 FRQl ”
0
I
21 0
-
+
AC ‘34
FINE
D C D U
*I2
I
-JR”
SC2At
IAcm
____ I38 rrv2.b
14
POT tc3Cm
SCZAl
SW-I
(SUOW I,” DOWN P O S )
1 i 2
PATCli c4 r
3
I
I
I
I
I 8
366 a -
WA
Cl o+
44ri
5 x-c7
-Q-
MVB
Q
ACW
PATCH
CPOT
FR@ ---- tc36co d2
SP2 -
SVFAl .
rpD~ lAoc S I N E 45
O U T
215 t-R42
PATCH c l 0
0
9
ACDW
SAhfM, VA. U.S.A.

01
0 3
OS
IC36K6CZA 1
0 7
0 9
11
1 3
15
17
19
21 J8
23
25
35
37
39
41
31
33
27
29
43
45
47
49
51
PATCH
C O W A
3 5 <
28~
37 <
31A
Jlo
160
170
210
221,
A L L S W I TCHES
SHU&d IN D%N
PCS.
SW-2
P28 C O N N A
40
4 2
<(
SW-4
PATCH
E4 0
Fd o cf? 0 t-6 o
:::&rIl
4 8
-f.K
3 9 A
2
SW-3
JACKS rJ3
0 f(R) r&I4
-lMo
DW
TEST
&$KS
0 +m)
TJ6
.Q -031
4 3
(<
45 <
STD
VOLTAGE
6v -__(
IC3600XzAl 2oMv __(
IA00 ov*
6
PATCH
E2
28~
28~
3 3 a
33J
CONN
37J
47J
CARD FRONT
JACKS
SW-5
‘/=l
1
S W 6
A 41
I
Au%
TEST
TJ8

31
4 da
17
1 9
14 w
13
<
33
<
34.
32
16
\
4g
CONN A
<
7 a
9
10
5
4
6.
02A
044
06~
06~
IO*
12r
141)
16~ fah
2 0 A
22A
24~
26~
26~
3oA
32~
364
36~
40A
07
09
15
17
19
21
23
25
35
17
39
41
L7
29
31
33
$3
55
17
I9
51
4
-44A
21
\
46A
22
<
46~ -
3
SOA
TAf 3.q.73
/
PATCH a5
06
I49
0
I45
0
H6
0
H6.
0
H7
0
Ed
0
32
0 e3
7
3 4
0 a9
010
0
R7
0
36
0 c3
0
E8
0
D3
0
HI
0
07
0
Da
0
D9
0
04
0
05
0
HI0
G
CONN A
51 <
25
.
n
02a
K
PATCH
86
CO
046
47{o
N. B l<
All
0 6 0
01 I
L.
IOU
010
23(
124
24<
14G
011
Q
Cl2
27 4
I6a
26(
16~ t13
0
El I
29(
200
Hll
30x
220
36
-c
260
A
36-
\
39
26G
300
32~
4 0 ,
34a
41
4
42
4
43
1
22
360
380
4oa
420
14
446
3
16
+----XT
460
17
A
600.
A12
0
El6
0 s-11
0 c) r!2
Fl3
Jll
614
0
AlS a
315
0
0 tll
Al3
3
813
0
At4
0
. . . .I r*
11ts1
MAO1 rot
I c. N O .
E L E C T R I C
CALIWATtYI
INDUSTRY CONTROL DEPT. 1
SALEM. VA. U.S.A.
CON?. c 4
ON JH
9 8aBBA , o
’ o
SW.NO.
3*s

03
05
07
09
11
CONN. 0
13
\
45
A
46
<
9 w
4 4
<
4 7
.I5
19
4 8
N
49
-+
8
4 f
5
<
6
39
41
35
307
43
27
29
31
33
45
47
49
51
23
25
.
7
.
31
2 4
2;
4
2 7
-c
2 s
-e
3 0
\
CONN. A
2
\
1
ACCt4
DCOM
P50
P28
PI2
Nt2
N50
WA
16~
16A
20A
06~
OBA
1OA
12A
14A
22A
24A
26A
28~
3OA
A3
A5
A6
PATCH
Ot THRU Glo
A4
At
A 2
013
Cl4
0
014
0
Cl1
0 a l 2
0
Cl3
0
014
0
Cl5
PATCH
0
Cl4
0 fl5
Cl2.
0
012
3 cl3
CARD c 2
Hl
D24
~27
~29
H30
0
CWN. 0
10
<
1 9
2 0
2t
L;
34
3 5 x-
2 5
2 6
.
10
11
4;
1 2
1 5
4.
3 2
CARD
0 2
Ql a27
0 n29
0
ACOH
TO POTS
- ON Ski. 3.3
>
TO SW ow
SH 3 . 4
INDUSTRY CONTROL DEPT.
PATCH
0 ml2
0
Ill3
0
844
0
I415
112
113
0
I14
115
0
J12
0
J 1 3
J 1 4
0
J15
01s
$4
1 4 f
16~
18F
2OP
04f
06f
08f
10F
126
2 2 F
24~
26f
2 6 f
3Of

03
0 5
07
0 9
11
13
15
17
19
21
39
4 1
4 3
45
47
49
51
23
25
2?
29
31
33
35
37
PURPOSE
Is to provide a convenient, fast and accurate method for checking and calibrating
Spccltr0nf.c
Panels.
It is packaged and is ribbon cables.
It provides frequency signals in to a carrying case electric;llly connected with calibrate the speed controls, millivolt signals f o r the temperature controls, voltage or current signals for the pressure sensors , precision voltage references for calibrating lnstrumcnts, and control signals are made available for monitoring.
The equipment has been designed to provide a turbine simulate function within the present housing with a minimum of change.
m
1.
Connectors - two card and ribbon cables with fifty one wires are used to connect the Speedtronic page with the calibrator.
E a c h c a b l e w i l l b e s i x f e e t l o n g .
The A connector (red)is used primarily for the
Calibrator asd its signals while the B connector (bluc)is used primarily for m o n i t o r i n g s p e e d t r o n i c s i g n a l s .
2.
Directomatic 2 card rack - an eight card slot sack is provided.
The two left most slots are provided to accept the connector cards of the ribbon cable.
Three slots are for the XC36OOSVF’A, SCZA, and
&%~o~~ds.
Three slots are provided,without receptacles,as space for future a ) IC3~OOSVPA - voltage t o frequency convertor.
This card is used in conjunction frequency sine with waves.
the Frq. pots to generate variable
There are two circuits OR a card.
See the card application notes for more information.
b ) IC36OOSC2A -calibrator signal source.
This card contains three different types of circuit.
These are: l- one standard voltage source - 3 card front jacks are provided for meter calibration.
2 - one voltage and current source.
3 - two millivolt sources.
See the card application notes for more information.
c ) IC36OOEPSS -
-5OV to -12Y regulator. This card converts
-50V to -12V DC.
It is only necessary when -12V is not availably in the system.
The card does not have tg be removed from its slot when the -5OV’is not present.
3.
Patchboard - There are two patchboards used in the equipment. One is a one hundred pin (10X10) Vector patchboard; the othet, a fifty pin (lOX5) Vector patchboard.
The 10X10 is used primarily for calibrator applications and the 10X5 for monitoring speedtronic control signals.
A quantity .of piggyback type patch plugs ate provided for patching.

0 1 -
0 3
05
2 3
25
1 9
2 1
13
1 5
1 7
0 7
09
11
37
4 3
43
3 9
4 1
4 7
49
51
3 1
33
27
29
35
4 .
Potentiometera - eleven two watt potentiometer8 are provided for use with the voltage to frequency convertors, millivolt sources, voltage, source a n d t e s t functions.
They are s i n g l e turn pots and full c o u n t e r clockwise is the minimum position.
5 .
Switches - ten miniature size switches are provided for sequence simulation, thermocouple transfer and test function. All switch toggles in the up position
(toward the card rack> provides a closed circuit.
6 .
Test Jacks - four
7.
Storage - space is provided for two small instruments, instruction b o o k a n d connector cables.
8 .
Tpairs of miniature binding posts are provided to accomodate digital voltmeters, counters and oscilloscopes.
Enclosure - is similar to a suitcase and hinged such that it is stable in the open position.
9 .
Chassis Ground is brought to
Earth Ground.
PUNCTICNSa
Jack
(Green) which can be connected to
Ronitor - the fifty pin patch board AlldJ15 is provided to monitor Speedtronic signals.
The procedure is to patch the desired signal to a test jack where it can be instrumented.
Two variable frequency oscillators are contained in the IC36OOSvFA card.
The circuits are used with four pots to achieve a variable frequency output.
By addit ion of a signal conditioning card, it La possible to achieve voltage control.
A variable voltage source with a. ten ohm shunt is provided. It is capable of operating from either a +5OV supply or a +12V supply.
It can be controlled from an external voltage signal for the simulate opt ion.
The Standard voltages are precision voltage references for calibrating instruments.
The two voltages are nominally +6 volts and +20 mv; the actual values are recorded on the card front during card test.
All calibration rr\ust be done at the tacks on the card front to avoid voltage drops.
Two millivolt sources are provided which are adjustable from O-50 millivolts with 1 o h m o u t p u t impedance floating with respect to the system.
Provision is made for voltage control of mv output. for the simulate option.

Ii
19
13
15
19
21
03
0 5
0 7
0 9
11
13
15
17
31
13
I7
29
15
17
19
23
25
6. Switches are provided to accomplish the sequence simulation.
P O W E R
All power is supplied to the Calibrator”from t h e
Spaedtronic Panel v i a t h e ribbon connectors. 1 DCOM used as signal common.
has been used as power common and ACOM
OPEP?TING CHECK OF ELECTRONICS
A.
Install A connector in proper Speedtronic slot.
B. 1.
Check to see that the necessary DC buses are present.
2 .
Check to see that the 8.4V 3KH voLtages are present.
(use Signal, Definition and Location chart to determine proper points).
c;.
M i l l i v o l t S o u r c e -
1.
2 .
P u t Swi switch in the down positfon.
Put millivoltmeter from MVA+ to WA- by patching ~6 to C4
3 .
4 .
‘5.
and F6 to CS.
Turn MVl-coarse pot from one e?d to the other. MV meter should vary between OV and at least +5OW.
Set output at 25 mv with MVL coarse.
6 .
7 .
8
9 .
10.
11.
1 2 .
1 3 .
14.
I S .
Turn MVL fine pot from one end to the other. MV meF,:r should vary at least 3 mv from the 25 mv reading.
’
P u t SW1 switch in the up posit ion.
Millivoltmeter should read OV from WA+ to MVA-. (No control from HVl Knob)
Put mLlli.voltmeter from ?lVB+ to MVB- by patching E6 to C6; F6 to C7 and
G5. (Remove E6 to C4 and F6 to CS and C5 to GS) .
Meter should read 25 mv 53 mv.
P u t SW1 switch in down position.
Turn MV2-coarse pot from one end to the other. W meter should vary-between OV and at least i-50 mv.
Set o u t p u t a t 2 5 mv with W2 coarse.
Turn MV2 fine pot from one end to the other. MV meter should vary at least 3 mv from the 25 mv reading.
Put, SW1 switch in the u p position.
Millivoltmeter should read 25 mv 23 mv (same reading as step 5).
(No Control, From MV2 Knob)
D .
Current Source -
1.
Patch C2 to E6 and Gl to F6.
2 .
3 .
Monitor between +DW and -DVMA at the test facks with a vpltmeter.
Vary Curr. Coarse from one end the pot to the o f o t h e r .
Voltage should vary between OV and at least 34V when i-5@?
DC Ls present.
Voltage should vary between OV and at least 8V when only +12V
DC is present.
r
!&%?%!5 “f#~?& &- G E n E R A t
“ 10, /4 7 3
I”^“’ ‘* J, A. F,bJc CIrlrsr’hof fOI ix. MO.
fituurf~#rDf~GalY~~Lib,~~~~
EtECTRlC bplicfttion I n f o .
JNDUSTRY CONTROL
DEPT.
SALEM. VA. U.S.A.
Ic4988AIOO
CoMI.OUSH
323 s*.Mo 3.22
1% z.CLP

27
34
41
25
31
33
35
37
43
45
4 7
49
51
19
21
23
25
03
05
13
15
37
O?
09
1 11
E.
Voltage
C O
Frequency Converbor -
:: hatch c l
&td ~1 o CO ~4.
Monitor FRQl with oscilloscope dt Scope A test jacks. A 10 to 11
3 .
4.
volt peak to peak variable frequency 15HZ to 12..SKHZ Sine
W a v e
Will. be observed. (Lt is necessary to v a r y coarse p o t to start wave).
Vary FRQL coarse from one end of the pot to the other. Frequency s h o u l d v a r y from a t t e a s t
1SHZ to 12.5KHZ (66,7MS T o 80.0
microsec. period).
Set frequency at 6KHZ (167 microsec period). Vary FRQl fine from one end of the pot to the other. The frequency should
HZ.
change approx. 2fO llonitor FRO2 with oscilloscope . Remove Cl to E4, instaLl CL0 to E4.
A 10 to 11 volt peak to peak variable frequency 15HZ to 1:!.5KLiZ Sine
6.
wave will be observed.
Vary FRQ2 coarse from one end of the pot to the other.
Frequency should vary from at least LSHZ to 12.5KHZ (66.7MS To
80.0 microsec. period).
Set frequency at 6KHZ (167 microsec. period). Vary FRQZ fine from one end of the pot to the other. The frequency should change approximately 250 H Z .
t rR’lA”@v$ypi~ EE#EBAL
>I hoa
I
IS. MO.
BLIMCYTAIV DlAGBW ~a 1 jCbra to
ELECTRIC A p p l i c a t i o n Info.
lNDUSTRY t6MTROl DEPT.
SALEM. VA. U.S.A.
IC4988AlOO cow. ON In. Lo wo.3~

01
.- _ . - , ,
A 5 c
STANOARO VOLTAGE
3 3 a5
D‘ E F
(24)
+50V C R 6
G
H J
VOLTAGE AND CURRENT SOURCE *
K
(14)Pof
37
19
SPl @) ---y-q HSl
15
I7
1 9
21
23
!5
3 1
3
.I
!9
5
7
9
I1
11
13
CRT
CR5 - 68+l82ooPl
CRlO - 68AR38Pl
Pl -2wn4-~7373~8
92 - 2Ns320 68A7nm
CRl4,S.d -.63A?25OPl
MILLIVOLT SOURCE (2 CIRCUITS PER CARD)
-B-
CR2
3
5
7
9
CARD FRONT it
1. 1 SBH fir%3 IW. ,
1. 2 tL3/72
‘ssuEo
RLV. 5 y- 2 a -
1 . 3 MAO1
.I
70,
JH SMITH
PIwrS TO
6-r
@J dP
OLl
I
FtaslM2Df pa
I.C. NO.
1338
FOP t3b;
W) cm OUT
(36)
(34)
14%
GEH ERA1 @ ELECTRIC
INDUSTRY CONTROL DEPT.
SALEM. VA. U.S.A.
ELIM~WlA.LIY
OIAGPAM c&L 1 BRATOR
S!GNAL SOURCE
1 c 3 6 0 0 s c z A 1
CONT. ON SW. 3 -1 IN. NO.
3 . 0 l

D3
D5
27
3 5
3 7
39
41
29
31
33
4 3
45
17
19
21
23
25
D7
13
15
09
11
47
4 9
51
APPLlcATtoN NOTES - 1cmJosczA
THIS C A R D CfflTAtNS T H R E E DIffERENT T Y P E S DF ClRCUit; T H E S E AREJ
A .
CM STAHDARU V O L T A G E SQURCE
8. ONE VOLTAGE AND CURRENT SCURCE
C. IWO HlLLIVOLT SOURCES
A.
STANDARD VOLTAGE
SCURCE
THIS
CONSISTS OF IWO VOLTAGE SOURCES WHICH CAN BE USED FOR CALIBRATING INSTRLMENTS.
THE
SOURCES ARE NCMINALlY 6 VOLTS AND 20 MiLLlVOLTS. THE PRECISE VALUE AT ROCM
TP(PERATURE WILL BE RECORD&D ON THE C4RD. THE VOLTAGES ARE DERIVED FROM THE 12’
D.C. BUS By MEANS OF A REfERENCE DIDDE CRT0 AND A RESISTANCE BRIDGE. THE NOMINAL
6 VOLTS WILL BE A M I N . DF 5 . 9 V O L T S A N D A M A X . Of 6 . 5 V O L T S A T 25” C. T H E V A R I A -
TION
OF VOLTAGE
WITH TEMPERATURE CHANGE IS .65 MV.,‘?. THE 20 W.
WINAL OUTPUT
WILL BE .3%
4
2% OF THE NOMINAL 6’ OUTPUT.
ME RECORDED 6 VOLT VALUE
WILL
BE MEASURED
WITH A &5% METER .CRBmER.
fNPUTS: +12’ D.C. P I N 2 7 1 0 M A , mRfTs: +& D.C. Jl
+20
W . D,C. J2
THE
CUTPUTS SHaJLD BE MCNITORED WITH INSTRUMENTS WHICH HAVE HIGH INPUT IMPEDANCES.
0. VOLTAGE AND WRRENT
SOURCE
THIS IS A VOLTAGE SOURCE WHICH IS CAPABLE Df DELIVERING 0 TO 35 VOLTS AND 0 TO 50
MA, cd Bu5Sl
It CAN a CONTROLLED
FRCM AN EXTERNAL VOLTAGE S IGNAt FOR THE S fMULATE OPTICN.
IN THE CALIBRATE MODE, THE SPDT
TERMINRL
IS CDNNECTED TO A PAlR Df F’OTMTICMETERS
A S SHCMN I N FIG, 1 , COARSE AND f INE CoKTROt. CF THE DUTPVT IS PROVIDED By THE nj0
Fm
FIG. 1 PO-fENTlavlETER
ARRANGEMENT FOA
VOLTAGE
AND CURRENT SDURCE,
PC% T H E QSIM OmPm I S A
CURREM LlMiTED B4lTTE.R :QLLCMR. T H E SPOT INPUT US A L S O
USED FOR THE SitMATE OPTION.
T H E BUS V O L T A G E FOR T H E ClRCUlt H I L L 8E EiTHER +SO” CR +IZ’. WHEN WE +12’ IS
THE BUS THE DEVICE WILL BE EQUIVALENT TO 0 TO 11’ WORKING THROUGH 2600, THE APPLlCATlDN
IS SUCH THAT’ WHEN THE +SOv IS NOT PRESENT, THE HIGHER VOLTAGE OUTPUT IS NOT REQUIRED,
THE CURRENT SIGNAL PROVIDES ABtLITY TO READ VDLTAGE DROP ACRDSS R17,
I N P U T S ; +d 55 t-94 NCWNAL, 190 MA MAX P I N 2 4 OUTPUTS: CURRENT SIG
+12V 4 6 M A MAX P I N 2 7 PSIH
S P O T P I N 1 1
PtN 10
P
I N 16
PROPRIETARY INFORMATION OF THE GENERAL ELECTRIC COMPANY lNDlJSTRY COMTROL DEPT.

23
25
!f
29
31
13
19
21
15
I7
09
11
13
D5
37
01 A
03
15
I7
39
61
13
I5
17
I9
51
8 c D .E
F G ii J K
C . WILLWOLT SQURCE ( 2 CfRCUITS P E R C A R D )
ADJUSTABLE FRCM ‘O-60 MILLIVOLT WITH I O+U OU7PW IMPEDANCE, fLaA7lNG WI7H RESPECT
70 THME SYSTM, PROVISlDtd I S M A D E FOR V O L T A G E CoNTROt. ff MIUIVDLT OU7PW fOR SIMULA’IE
OPTION.
THE MILLIVOLT SOURCE DERIVES 17S PckJER FRCM THE iYDT OSCILLATOR.
INPUT VOLTAGE
LFtfEL I S B.4Y; FREQUENCY 3 K H , ME WC; C U R R E N T OWN I S 1SDt.M RMS. T H E A&,
VOLTAGE IS RECTIFIED AND flLTERED.
A N EMITTER FOLLCWER I S U S E D T O CONlROL THE VccrAGE
ACROSS A RESISTANCE DIVIDER.. T H E CUTPUT IS A PORTlDN O f THIS DIVIDERS; THE S C PDT
INPUT IS CONNECTED To SLIDE OF A 1K FOTENTJMETER WHICH IS CONNECTED BEiWEEN THE i+ AND 0’.
I7 PROVIDES THE C O A R S E ADJUSFM&NT of M E pvFM. S C FQT I S ALSO U S E D F O R THE
ShUtATE CCWRDL, THE SLIDE Of A 1K p07ENTIoMFTER IS CONNECTED TO SfPDTl THE lJDTEN7I~Ei’ER
IS CONNECTED BETWEEN 3” AND Ov, 7HIS PROVIDES THE FtNE ADJUSTMEW FOR THE UJTF’UT.
imz
8.4’, 3 K H P I N 32, (46)
SW07 P I N 3 5 , (451 s e P I N 3 0 , (471
SfPO7 P I N 3 1 , WI wrpvr: O U T PIN 29,138)
3y P I N 2 8 , (36)
CONNECflDN FOR CALIBRATOR IS AS SHCMI BELW:
(361
(38)
(43)
0, FDUR RESISTORS AND A CAP.4ClTM1 ARE MDW7D CN M I S CARD WHICH ARE USED IN CCWUNttiW
WITH T H E CALIB?ATDfI... . . . .
l
PROPRIETARY INFORMATION OF THE GENERAL ELEffRlC COMPANY
SALEM, VA. U.S.A.

(27) P12
ICI. - MC 1741 = 7672Pl
Ql - 2N4249 - 68h7355Pl
42 - 2N4899 - 68A772OPl
CR3 4 . N - 56A8202PO52
CR4
APPLICATION KOTES
- 68hi2SOPl
THIS C tRCU tT CONVERTS -50v D .C. TO -12” D. C. 8Y MEANS OF A VOLTAGE CC:iTROLLED SMlNT
REGULATOR.
A SHUNT TRANS tSTOR IS CONTROLLED BY A VOLTAGE SENSING M ICROELECTRCN tC OPERATIONAL
AWLIFIER.
A ZENER SUPPLY CAPABLE OF 60 MA. PROV jOES 5.3’ FOR INTEGRATED C IRCU i is.
INPUTS :
OUTPUTS :
+ L2’ O.C. PlN 27 70 MA. MAX m 50” D.C. PIN 30 300 MA. MAX
-12’ f .I” PIN 29 250 MA. MAX
+5.3” i 5% PIN 26 60 MA. MA MAX
REGULAT I ON : -12’ D.C. i .03” FROM 10 I%. TO 250 MA.
RIPPLE’.
LESS THAN 1CMV P-P ON -12” SUPPLY
THIS CARD b?UST 6E MOUNTED IN THE LAST USAGCE CART) SLOT IN ME CARD ROW OR LEAVE SPACE FOR 2 CARDS
IN THE CARD Rm.
PROPRlETARYlNFORMATfON OFTHE GENERALELECXiC COMPANY

SH4PER
05
07
09
11 l-R1 cb-
1 3
C R y-3
K
.
+12V
I
PpCR?
y
R9
3.92K
R10
3.92K
SPI
SP2 l-R1
CPOT 4
FPOt
S W
ClRCUlt 1 ClRCUlT 2
3 3 0
1 6
11
5
6
S I N E
0UTPtj-r 1 9
4 2
3 7
3 i
3 2
4 9
4s
SINE
OUTPUT
23
(2,501
2 5 o-
27
29
(271
31 -
I
V
ICl AND 2
Ql
42
Q3A 4238
45 - Q 8
Q 6 - Q 7
741 68A 7672Pl
2Nl711 - 68A8305Pl
2N4036 - 63A77olPl
2N27i4 - 68A7307Gl
2N2714 - 68A7373P7
2N4249 - 66A7355Pl
0
39CPOT
RL4
41 1OK
$9
5 1
45
(29)
1 7 0
3 3 2 K
L---,-l-
.oocz!MFD
lNTECRA7aR
SWITCH
I h R 2 3
1 8 2 K
2 2
O O K
Q 5
R 4 2
Y
;;Iq%
R4-l 46
4.7jJmQ
K I

23
25
19
21 lb
15
17
29 fORM 1C 2 3 9 0 (03-68)
APPLICATION NOTES
F U N C T I O N : T H I S C I R C U I T I S U S E D I N T H E SPEEDTRUNIC CALI5RATOR/SIMULATOR.
1T CAN ACCEPT
A V O L T A G E V I A A S I G N A L CONDItlONER C R U S E ITS CklN SWlTCH OUTPUT’ V I A .4N MTL%tAL POTENTIOMEJ’ER
TO CONTROL A FIXED MAGNITUDE VARlABLE FREQUENCY SINE WAVE OaPUl.. THE SINE WAVE IS USED TO
SMUtATE THE OUTPUT OF A MAGNETIC PICKUP WHICH IS THE
SPEED
SIGNAL FOR THE TURBlNE SH4FT.
WHEN USED IN THE CALIBRATOR THE OUTPUI- FREQUENCY IS CONTROLLED BY A f’DTENTIC+tETERf WHEN
USED 1N THE SIMULATOR -I% OUT FREQUENCY IS CONTROLLED BY A D.C. VOLTAGE VIA A SIGNAL
CONDITIONER,
C I R C U I T D E S C R I P T I O N :
THE ClRCUlT CAN BE BROKEN DOW INTO FOUR PART-S:
1.
I MEGRATOR
2 , S W I T C H - H Y S T E R E S I S
3 .
SHAPER
4.
SIGNAL CONDITIONER
INTEGRATOR
SIGNAL
4
CDND-
JTIONER
I
HYSTERESIS
SWITCH
. .
! SW.
I
F I G . I - BLOCK DIAGRAM
THE INTEGRATOR IS A MICROELECTRONIC OPERATIONAL AMPLIFIER. IT WILL INTEGRATE ITS INIjVT U N T I L
THE OUTPUT CAUSES THE HYSTERESIS SWITCH TO OPERATE.
A T T H I S T I M E T H E I N T E G R A T O R I N P U T WItL
REVERSE POLARITY AND BEGIN INTEGRATING IN THE OPPOSITE DIRECTION UNTIL THE HYSTERESfS SWfTCH
I S S W I T C H E D BACK T O I T S ORIGiNAL C O N D I T I O N , THE RESULT IS
W A V E A T T H E lNTECRATOR O U T P U T .
THE FREGUENCY IS
THE GENERATION OF
CONTROLLED
A TRIANG?JLAR
BY VARYING THE M4CNlTUDE CF THE
C U R R E N T 1 M O T H E INTEGRATOR I N P U T , T H I S I S D O N E B Y M W N S Gf A POTENT1OMEI.ER I N TilE SIdiTCH
OUTPUT OR 6-f MEANS OF AN EXTERNAL CURRENT SOURCE FED THRU A PA IR OF DIODE SWITCHES WHICH
ARE CONTROLLED BY THE HYSTERESIS SWITCH OUTPUT.
THE INTEGRATOR OUTPUT IS FED iNT0 A SHAPER WHICH IS AN oPER4TIONAL AMPLIFIER WITH VARIABLE
CAIN.
THE GAIN IS REDUCED AT THREE DISTINCT LEVELS.
TWO A R E A T T A I N E D 8Y V A R Y I N G T H E FEEDE4CK
R E S I S T A N C E T H E O T H E R By V A R Y I N G T H E I N P U T R E S I S T A N C E . T H E R E S U L T O F T H E S E G4lN CWNGES I S A
ROUNDING OF THE TRIANGLE WAVE F&M AND A STEEPENING OF THE ZERO CROSSOVERS
WAVE.
TO Al-i-A IN A SINE
C I R C U I T CwRACTERfSTICS:
1. POdER I N P U T +12v
-12Y
1cy~ bt4 W I T H lOOn L O A D
100 :t4 W I T H lo0t-l L O A D
2 . S I G N A L I N P U T : V I A POTENTlCMETER O R D I O D E S W I T C H E S O-+1,0 t-t4 V A R I E S T H E F R E Q U E N N Fi?CM
0 TO APPROX . 12 KHZ.
PROPPJETARY iNFOR!~lAT:OM QF THE GENERAL ELECTRJC COMPANY

2 9
3 1
33
2 3
2 5
09
._.___. -___- _.__ “._.I ..__ __- ^____ --_ .-.~ ___._ _-. _--.
_ _ --. _-_ . -- _....- -
3.
SINE WAVE CUTPUT:
VOLTAGE - 1OV P - P O R 3.53 m.
.
CURRENT - 1 4 0 MA P - P O R 4 9 . 5 MA RMS
(WITHOUT CHANGE IN OUTPUT VOLTAGE LEVEL) fREQUENCY-CONTINUOUSLY VARlABLE F R O M 0 T O 1 2 K H Z
LOWEST USEASLE FREQUENCY - 15 HZ.
CALI BRATOR HCQKUP: r-n
3 ( 3 0 91 f POT
4 t31) C POT
I C36CQ
SVfAl
10K
F tv t s-r/e<*/
//-rl.l ,
!V. t iv. 1
MADf YY
LX PE”sRSON 4 fi 1338 “’ ‘* SALEM. VA. U.S.A.
IllMtNTAPI DIAbRIM
VOLTAGE TO fRE(?UEt’ICY CCr!‘i
, C 3 6 o l-ON1 ON 1* o S V f
FL.
A 1
J,‘ NO 3 .2

Dl
A
33
B C D
INTERCONNECTION TO PAGE MADE THRaUGH CONNECTORS _
23
25
17
29
35
3 7
31
3 3
3 9
11
I1
13
15
I7
I9
21
D7
39
43
45
4 7
I9
51
A
NU’IES -
1 CURRENT MAY HE MEASURE,,
B Y IN,4 F R O M U2 !*) T O c2 I-), 1 MA - lcw
2 .
SWITCH ~~SW)~~ W I L L
CONNECT EITHER MV
SOURCE TO EITHER PATCH
3 .
PJINT
S W D3WN - M”A T O NV1
MVB T O MV2
SW. UP M V A T O MV2
MVS T O MVl
CONNECT’33 P I N N O ’ S
ARE SHOWN IN LOWER
LEFT OF EACH BLC)CK
4 MARK 1 HAS BOTH PSOV
AND N!iOV BUT MARK I I
HAS ONLY PSV IN PLACE
O F T H E S E T W O . (-1
B C D
4 a .
17
22
0
0
5
19
. I 0 .
I
,o
I
49
I
IS1
MI LLVOLT SOURCES
0
I
IS
.
(t, M E! :I
I
I I
0 0 0 0
I
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I
7
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5
.
- A C O M -
.
0’
(*NnLoo COMMON)
0 l
9
20
0
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0
0
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I
1 3 4 a
0
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IO
.
0
0
, 3 2
SE%&
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0
(CCNN “8”
23 l
2
0
44
0
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4 0
4s
0
47
0
4 9
0
32
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9 .
27 0
I
,z* 0 33 0 14 l
E
3
.
1s
0
, 17
.
13
0
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F
8 I
0 0 0 .
0’
G
4 5
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6
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7
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23
21
1 9 g
H l . . . . . .
21 ’ I I II
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12
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14
‘. . .
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15
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IS P l /,8o !/ (,, . !*T /”
E F G H J K 1 M N P Q R S T U V 16 Iii 1

8-78 (1M)
‘DRIVE SYSTEMS PRODUCT DEPARTMENT
SALEM, VA. 24153
GENERAL@!) E L E C T R I C