B
VSCF Generator/Converter Display Module Indications
Figure 501 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
VARIABLE SPEED CONSTANT FREQUENCY ú 24-11-11
GENERATOR/CONVERTERS WITH THE THREE ú CONFIG 3 LIGHT DISPLAY MODULE ú 01 Page 503 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
H24946
A 737-300/400/500MAINTENANCE MANUAL
1,2 2-PART MESSAGE INDICATED CODE VSCF fault-protective trip, GCFTD CONDITION
1,3 OVTD VSCF fault-protective trip,
1,4 UVTD VSCF fault-protective trip,
1,5 VSCF fault-protective trip, DCCINT
1,6 AFTD VSCF fault-protective trip,
1,7 EFTD VSCF fault-protective trip,
2,1 EFAHI or FEFAS or FRR VSCF fault-protective trip,
2,3 LINKOV VSCF fault-protective trip,
2,4 FDCCVSCF fault-protective trip,
2,5 FEXCAL VSCF fault-protective trip,
2,6 UNKNOWN VSCF fault-protective trip,
3,1 line fail Display Module SR1800 clock
3,2 Display Module SR1900 WR_ERR
3,4 Invalid message message, all zeros
3,5 Unused or invalid message message
3,6 Invalid message message, all ones
3,7 failure Display Module memory
4,2 DC content trip
4,3 2-PART MESSAGE INDICATED CODE Open phase trip, phase not determinedCONDITION
4,5 Open phase trip, phase A
4,6 Open phase trip, phase B
4,7 Open phase trip, phase C
5,1 Overheat trip
5,2 Overcurrent trip, phase A highest
5,3 Overcurrent trip, phase B highest
5,4 Overcurrent trip, phase C highest
5,6 DP trip, low voltage
5,7 DP trip, 115V
6,1 VSCF fault-passive, FMEM
6,2 VSCF fault-passive, FDMUX
6,3 VSCF fault-passive, FATOD
6,4 VSCF fault-passive, FFREQS
6,5 VSCF fault-passive, FACSEN
6,7 VSCF fault-passive, FUVSEN
7,1 VSCF fault-passive messageNot used - reserved for
7,2 VSCF fault-passive message Not used - reserved for
7,3 VSCF fault-passive, FTBIAS
7,4 VSCF fault-passive, FRTC
7,5 Missing messages, (PWRCNT overflow)
7,6 message Display Module failure Not used - reserved for
Expanded Fault Messages Chart Figure 502
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
VARIABLE SPEED CONSTANT FREQUENCY ú 24-11-11
GENERATOR/CONVERTERS WITH THE THREE ú CONFIG 3
LIGHT DISPLAY MODULE ú 01 Page 504 ú Mar 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
H24947
A
737-300/400/500MAINTENANCE MANUAL
D. Prepare for the System Test.
S 865-022-003
(1)
Supply electrical power to the airplane busses from the APU
generator or the external power source (AMM 24-22-00/201).
S 985-023-003
(2)
Push and release the applicable GEN 1 or GEN 2 switch on the P5-4 panel to ON.
S 865-024-003
(3)
Start the engine (AMM 71-00-00/201).
(a) Make sure that the applicable DRIVE or LOW OIL PRESSURE No. 1 or 2 light on the P5-5 panel goes off.
S 985-025-003
(4)
Turn the ac meters switch on the P5-13 panel to the applicable GEN 1 or GEN 2 position.
(a)
Make sure that the frequency meter shows 400 | 5 Hz.
(b)
Make sure that the ac voltmeter shows 115 | 5 volts.
E.
Do a Test of the VSCF Operation.
S 985-026-003
(1) Push and release the applicable GEN 1 or GEN 2 switch to ON.
(a) Make sure that the applicable GEN OFF BUS No. 1 or 2 light goes off.
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