ARMY
TM 5-6115-612-34
MARINE CORPS TM 6115-34/8
AIR FORCE
TO 35C2-3-471-2
NAVY
AG-320BO-MME-OOO
4-2.
GENERATOR
ELECTRONIC
CONTROL
MODULE. (cont)
g.
Power Limit Test. (cont)
(12) Increase voltage from power
supply No.
4 until UNDER VOLTS light
goes off.
The output voltage of power
supply No.
4 should be greater than
17.5 millivolts.
(13) Any discrepancy noted during
the above
procedures
indicates a
failure in the GECM power limiting
circuit.
Refer to
table 2-4,
Malfunction 18.
h.
Enable Test.
i.
Regulator Test. (cont)
METER SELECT
FIELD VOLTS
ENABLE
OFF
OVER TEMP
ON
SOURCE
BATT
RTD
FIELD
OFF
(2) Adjust power supply No. 1 to
24 (± 4) Vdc.
(3) Adjust power supply No. 2 to
0 Vdc.
(1) Perform test setup procedure
(4) Adjust power supply No. 3 to
(paragraph 4-2a).
5 (± 0.5) Vdc.
(2) Set
power
supply No. 2
voltage at 28 (± 0.5) Vdc.
(3) Set power supply No. 4 to
zero volts.
(4) Turn VOLTS ADJUST knob to
center/mid-range position.
(5) Move METER SELECT switch to
FIELD VOLTS.
(6) Move ENABLE switch to OFF
position.
Voltmeter
should indicate
less than 1 Vdc.
(7) Move ENABLE switch
to ON
position.
Voltmeter should indicate 29
(± 0.5) Vdc.
(5) Adjust power supply No. 4 to
0 Vdc.
(6) UNDER VOLTS light should be
on and all others off.
(7) Move ENABLE switch to ON.
(8) Move SOURCE switch to GEN
position.
(9) Adjust voltage from power
supply No. 2 to 20 (± 1) Vdc.
(10) Turn VOLTS ADJUST knob until
voltmeter indicates 29 (± 0.5) Vdc.
(8) Any discrepancy noted during
(11) Move FIELD switch to LOAD
the above procedure indicates a failure
position.
Voltmeter should indicate 28
in the GECM enabling circuit.
Refer to
(± 0.5) Vdc.
table 2-4, Malfunction 16.
(12) Move FIELD switch to OFF
i.
Regulator Test.
position.
(1) Adjust test fixture switches
(13) Increase voltage from power
and knobs as follows:
supply No. 2 to 35 (± 0.5) Vdc.
4-6
* U.S. GOVERNMENT PRINTING OFFICE: 1993 - 755-028/80172
PIN:
060188-003
