Hobart 60CU20 Operation And Maintenance Manual With Illustrated Parts List page 122

OM-2226 / Operation and Maintenance Manual
60CU20 / Series 500062 / 400 Hz. Generator Set
b) Faults
Fault
Name
code
Air EIB AIR RESTRICTION FAULT
FUEL EIB LOW FUEL WARNING
_ _.00 Invalid Fault
_ _.03 CTL MEMORY FAULT
_ _.04 REG EF1 LOSS FAULT
_ _.05 REG EF2 LOSS FAULT
_ _.06 TRB EF3 LOSS FAULT
CTL OUTPUT OVER
_ _.16
VOLTAGE FAULT
CTL OUTPUT UNDER
_ _.17
VOLTAGE FAULT
CTL OUTPUT 1 OVERLOAD
_ _.18
FAULT
CTL OUTPUT 2 OVERLOAD
_ _.19
FAULT
CTL MACHINE OVERLOAD
_ _.20
FAULT
CTL OUTPUT VOLTAGE
_ _.21
IMBALANCE FAULT
REG OUTPUT OVER FREQ
_ _.22
FAULT
REG OUTPUT UNDER FREQ
_ _.23
FAULT
May 2, 2013
Revision 2
Faults
Possible Cause(s)
Air filter is obstructed or dirty.
Bad air restriction indicator
Fuel tank level is below ¼ tank. Fill fuel tank.
CTL board defective
EF1 voltage signal not present
CTL board defective
EF2 voltage signal not present
CTL board defective
EF3 voltage signal not present
TRB board defective
K403 relay defective
Defective Output Cable
Voltage set too high
LDC set too high
CTL board defective
Voltage set too low
CTL board defective
Overload on Output 1
Overload on Output 2
Total overload on Output 1 & 2
Open or broken sense line
Load not balanced
Defective engine ECM
Defective REG board
Defective engine ECM
Defective REG board
Corrective Action
Check for obstructions.
Change air filter cartridge or
air restriction indicator.
Replace the CTL board.
Switch the EF1 switch to ON
Check cable contacts.
Replace the CTL board.
Switch the EF2 switch to ON
Check cable contacts.
Replace the CTL board.
Check cable/aircraft connection.
Place a 28 VDC signal of DC+ at
output cable and at GPU.
Replace defective components.
Adjust voltage or the LDC on the
REG board.
Replace CTL board.
Adjust voltage on the REG board.
Replace CTL board.
Reset and restart GPU.
Reset and restart GPU.
Reset and restart GPU.
Repair sensing wire.
Check load imbalance and correct
as required.
Replace engine ECM.
Replace REG board.
Replace engine ECM.
Replace REG board.
Chapter 2-4
Page 22