Curtis PMC 1297 Manual
86
Preliminary on Verso page is set with right edge at 7 and 7/8,
and the top (as on the Recto page) at 1/4.
3,3 FIELD SHORT traction motor field shorted 1. Field resistance too low.
2. Field winding shorted to B+ or B-.
FIELD OPEN traction motor field open 1. Field winding or connection open.
3,4 MISSING CONTACTOR missing main contactor 1. Main contactor coil open.
2. Main contactor missing.
3. Wire to main contactor missing.
4,0 TOTAL DISABLED expired total disable timer 1. Total disable timer expired.
TRAC DISABLED expired traction disable timer 1. Traction disable timer expired.
PUMP DISABLED expired pump disable timer 1. Pump disable timer expired.
4,1 SERVICE TOTAL expired total maintenance monitor 1. Total maintenance monitor expired.
SERVICE TRAC expired traction maintenance monitor 1. Traction maintenance monitor expired.
SERVICE PUMP expired pump maintenance monitor 1. Pump maintenance monitor expired.
4,2 OVERVOLTAGE battery voltage too high 1. Battery voltage > overvoltage
shutdown limit.
2. Operation with charger attached.
LOW BATTERY VOLTAGE battery voltage too low 1. Battery voltage < undervoltage
cutback limit.
2. Corroded battery terminal.
3. Loose battery or controller terminal.
4,3 OVER TEMP CUTBACK controller heatsink too hot 1. Temperature >85°C.
2. Excessive load on vehicle.
3. Improper mounting of controller.
4. Operation in extreme environments.
UNDER TEMP CUTBACK controller heatsink too cold 1. Temperature < -25°C.
3. Operation in extreme environments.
4,4 HYD THROTTLE FAULT hydraulic throttle fault 1. Throttle input wire shorted to B+ or B-.
2. Throttle input wire open.
3. Defective throttle pot.
4. Wrong throttle type selected.
HYD INHIBIT hydraulic throttle high at interlock 1. Improper sequence of interlock and
throttle inputs.
2. Misadjusted throttle pot.
3. Interlock switch open.
4. Sequencing delay too short.
5. Wrong throttle type selected.
Table 5 TROUBLESHOOTING CHART,
continued
LED PROGRAMMER
CODE LCD DISPLAY
EXPLANATION POSSIBLE CAUSE
7 — DIAGNOSTICS & TROUBLESHOOTING
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