Troubleshooting Chart - Curtis MultiMode 1214-8 Manual

LED PROGRAMMER
CODE LCD DISPLAY
1,2
HW F A I L S A F E
1,3
M - F AU L T
1,4
SRO
2,1
THROT T L E F AU L T 1
2,2
BB W I R I NG CHECK
2,3
HPD
2,4
THROT T L E F AU L T 2
3,1
CON T DRVR OC
3,2
D I R CON T WE L DED
3,4
M I SS I NG CON T ACTOR
4,1
L OW BA T T ERY VOL T AGE
4,2
OV ERVOL T AGE
4,3
THERMA L CUT B ACK
Curtis 1214-/15-/19-8 Manual

TROUBLESHOOTING CHART

Table 1
EXPLANATION
hardware fail-safe error
M- output shorted
SRO fault
5kΩ–0 or wiper fault
emerg. reverse wiring fault
HPD sequencing fault
Pot Low broken or shorted
driver output overcurrent
welded direction contactor
missing contactor
low battery voltage
overvoltage
over-/under-temp. cutback
5 — DIAGNOSTICS & TROUBLESHOOTING
POSSIBLE CAUSE
1. Controller defective.
1. M- output shorted to ground.
2. Internal motor short to ground.
1. Improper sequence of KSI, brake, and
direction inputs.
2. Wrong SRO type selected.
3. Brake or direction switch circuit open.
4. Sequencing delay too short.
1. Throttle input wire open.
2. Throttle input wire shorted to ground or B+.
3. Throttle pot defective.
4. Wrong throttle type selected.
1. BB wire open.
2. BB check wire open.
1. Improper seq. of KSI, brake, throttle inputs.
2. Wrong HPD type selected.
3. Misadjusted throttle pot.
4. Sequencing delay too short.
1. Pot Low wire open.
2. Pot Low wire shorted.
3. Wrong throttle type selected.
1. Direction contactor coil shorted.
1. Direction contactor stuck closed.
1. Direction contactor coil open.
2. Direction contactor missing.
3. Wire to direction contactor open.
1. Battery voltage <16 volts (24–36V models)
or <21 volts (36–48V models).
2. Corroded or loose battery terminal.
3. Loose controller terminal.
1. Battery voltage >46 volts (24–36V models)
or >60 volts (36–48V models).
2. Vehicle operating with charger attached.
1. Temperature >85°C or <-25°C.
2. Excessive load on vehicle.
3. Improper mounting of controller.
4. Operation in extreme environments.
20