Table 5 Troubleshooting Chart - Curtis 1244 User Manual

LED PROGRAMMER
CODE LCD DISPLAY
1,2 H W F A I L S A F E 1 - 2 - 3
M - S H O R T E D
F I E L D O P E N
1,3
A R M S E N S O R
F L D S E N S O R
T H R O T T L E F A U L T 1
2,1
T H R O T T L E F A U L T 2
2,2 S R O
2,3
H P D
2,4 B B W I R I N G C H E C K
3,1 C O N T D R V R O C
3,2
M A I N C O N T W E L D E D
3,3
P R EC H A R G E F A U L T
M I S S I N G C O N T A C T O R
3,4
M A I N C O N T D N C
4,1 L O W B A T T E R Y V O L T A G E
4,2
O V E R V O L T A G E
4,3
T H E R M A L C U T B A C K
4,4 A N T I - T I E D O W N
Curtis 1244 Manual,
Rev. E

Table 5 TROUBLESHOOTING CHART

FAULT
EXPLANATION
CATEGORY
1 self-test or watchdog fault
1 internal M- short to B-
1 field winding fault
1 armature current sensor fault
1 field current sensor fault
1 wiper signal out of range
1 pot low fault
3 SRO fault
3 HPD fault
1 emergency reverse wiring fault
1 cont. driver output overcurrent
1 welded main contactor
1 internal voltage too low at startup 1. Controller defective.
1 missing contactor
1 main contactor did not close
2 low battery voltage
2 overvoltage
2 over-/under-temperature cutback 1. Temperature >85°C or < -25°C.
3 Mode 2 or Mode 4 selected at
startup
8— DIAGNOSTICS & TROUBLESHOOTING
POSSIBLE CAUSE
1. Controller defective.
1. Controller defective.
1. Motor field wiring loose.
2. Motor field winding open.
1. Controller defective.
1. Controller defective.
1. Throttle input wire open.
2. Throttle input wire shorted to B+ or B-.
1. Throttle pot defective.
2. Wrong throttle type selected.
1. Improper sequence of KSI, interlock, and
direction inputs.
2. Wrong SRO type selected.
3. Interlock or direction switch circuit open.
4. Sequencing delay too short.
1. Improper seq. of direction and throttle inputs.
2. Wrong HPD type selected.
3. Misadjusted throttle pot.
4. Sequencing delay too short.
5. HPD threshold set too low.
1. Emergency reverse wire open.
2. Emergency reverse check wire open.
1. Contactor coil shorted.
1. Main contactor stuck closed.
2. Main contactor driver shorted.
2. External short, or leakage path to B- on
external B+ connection.
1. Any contactor coil open or not connected.
1. Main contactor missing or wire to coil open.
1. Battery voltage <undervoltage cutback limit.
2. Corroded battery terminal.
3. Loose battery or controller terminal.
1. Battery voltage >overvoltage shutdown limit.
2. Vehicle operating with charger attached.
3. Battery disconnected during regen braking.
2. Excessive load on vehicle.
3. Improper mounting of controller.
4. Operation in extreme environments.
1. Mode switches shorted to B+.
2. Mode switches "tied down" to select Mode 2
or Mode 4 permanently.
73