Hobart 60CU20 Operation And Maintenance Manual With Illustrated Parts List page 123

OM-2226 / Operation and Maintenance Manual
60CU20 / Series 500062 / 400 Hz. Generator Set
Fault
Name
code
_ _.24 REG CONTACTOR1 FAULT
_ _.25 REG CONTACTOR 2 FAULT
CTL DC OVER VOLTAGE
_ _.26
FAULT
CTL DC UNDER VOLTAGE
_ _.27
FAULT
TRB OUTPUT OVER
_ _.28
VOLTAGE FAULT
TRB OUTPUT UNDER
_ _.29
VOLTAGE FAULT
TRB OUTPUT OVERLOAD
_ _.30
FAULT
_ _.31 TRB DC CONTACTOR FAULT
REG EF1 VOLTAGE TOO
_ _.32
HIGH FAULT
REG EF2 VOLTAGE TOO
_ _.33
HIGH FAULT
_ _.34 TRB AC CONTACTOR FAULT
_ _.40 CTL ID FAULT
_ _.41 TRB ID FAULT
_ _.42 ESB ID FAULT
_ _.43 REG ID FAULT
TRB HEATSINK OVERTEMP
_ _.44
FAULT
TRB TRANSFORMER
_ _.45
OVERTEMP FAULT
TRB INPUT CONTACTOR
_ _.46
FAULT
_ _.47
May 2, 2013
Revision 2
Faults
Possible Cause(s)
Defective output contactor
Defective REG board
Defective output contactor
Defective REG board
Defective CTL board
Defective CTL board
Voltage set too high
TRB board defective
Voltage set too low.
TRB board defective
DC load over rating of GPU
Defective output contactor
Defective TRB board
EF voltage being sent from
aircraft on output 1 to the GPU
is too high.
Output cable is defective.
EF voltage being sent from
aircraft on output 2 to the GPU
is too high.
Output cable is defective.
Defective input contactor.
Defective TRB board
Defective CTL board
Defective TRB board
Defective or missing ID resistor
Defective ESB board
Defective REG board
Obstructed cooling air path
Defective thermal switch
Obstructed cooling air path
Defective thermal switch
Defective input contactor.
Defective TRB board.
Corrective Action
Replace output contactor.
Replace REG board.
Replace output contactor.
Replace REG board.
Replace CTL board.
Replace CTL board.
Reset and restart GPU.
Replace TRB board.
Reset and restart GPU.
Replace TRB board.
Reset and restart GPU.
Replace output contactor.
Replace TRB board.
Reset and restart GPU.
Check output cable.
Reset and restart GPU.
Check output cable.
Replace input contactor.
Replace TRB board.
Replace CTL board.
Replace TRB board.
Replace or install ID resistor.
Replace ESB board.
Replace REG board.
Clear air obstruction.
Replace switch.
Clear air obstruction.
Replace switch.
Replace input contactor.
Replace TRB board.
Chapter 2-4
Page 23