Specifications

Curtis PMC 1223/33, 1225/35, 1227/37 Manual
63
7 — DIAGNOSTICS & TROUBLESHOOTING
Table 8 TROUBLESHOOTING CHART
LED PROGRAMMER
CODE LCD DISPLAY
EXPLANATION POSSIBLE CAUSE
HARDWARE FA I LSAFE 2 output fault 1. Short in motor or in motor wiring.
1,1
2. Controller failure.
HARDWARE FA I LSAFE 4 overcurrent fault 1. Short in motor or in motor wiring.
2. Controller failure.
HARDWARE FA I LSAFE 1 EEPROM fault 1. EEPROM failure or fault.
HARDWARE FA I LSAFE 3 main contactor fault 1. Main contactor welded.
2. Main contactor driver fault.
3. Main contactor coil fault.
PRECHARGE FAULT precharge fault 1. Internal controller fault.
1,2
2. Low battery voltage.
HW FA I LSAFE motor voltage fault 1. Motor voltage does not correspond to
throttle request.
2. M1 or M2 output shorted to B- or B+.
3. Internal motor short.
4. Controller failure.
2,1 SRO SRO fault 1. Improper sequence of KSI, power enable,
and direction inputs.
2. Wrong SRO type selected.
3. Direction switch circuit open.
2,2 HPD HPD fault 1. Improper sequence of KSI, power enable,
and throttle inputs.
2. Misadjusted throttle pot.
2,3 PROC/WIRING FAULT HPD fault present for >5 sec 1. Misadjusted throttle.
2. Broken throttle pot.
3. Broken throttle mechanism.
2,4 SPD L IMI T POT FAULT speed limit pot fault 1. Speed limit pot wiper wire broken.
2. Broken speed limit pot.
3,1 BB W I R I NG CHECK emerg. reverse wiring fault 1. BB wire open.
2. BB check wire open.
3,2 EM BRAKE DRVR FAULT electromag. brake driver fault 1. Electromagnetic brake coil shorted or open.
2. Electromagnetic brake wiring open.
3,3 THROTTLE FAULT 1 throttle fault 1. Throttle input wire open.
2. Throttle input wire shorted to B- or B+.
3. Throttle pot defective.
4. Wrong throttle type selected.
4,1 LOW BATTERY VOLTAGE low battery voltage 1. Battery voltage <16 volts (24V models),
<21V (36V models), or <27V (48V models).
2. Corroded or loose battery terminal.
3. Loose controller terminal.
4,2 OVERVOLTAGE overvoltage 1. Battery voltage >36 volts (24V models),
>48V (36V models), or >60V (48V models).
2. Vehicle operating with charger attached.
4,3 THERMAL CUTBACK over-/under-temp. cutback 1. Temperature >95°C or < -25°C.
2. Excessive load on vehicle.
3. Improper mounting of controller.
4. Operation in extreme environments.