Table 2: Troubleshooting Chart - Curtis MultiMode 1207B Manual

LED PROGRAMMER
CODE LCD DISPLAY
HW F ai lsaf e
1,2
M - S hor t e d
1,3
SRO
1,4
Th ro t t le Faul t 1
2,1
BB W i rin g C h e c k
2,2
H PD
2,3
Th ro t t le Faul t 2
2,4
C O NT D RV R OC
3,1
D I R C ON T We l d e d
3,2
Contactor Driver Fault incorrect main driver feedback
3,3
M is si ng Con tac tor
3,4
Lo w Bat t e r y Vol tage
4,1
O ve r Volt age
4,2
Th ermal C utb ac k
4,3
22
TROUBLESHOOTING CHART
Table 2
EXPLANATION
hardware fail-safe error
M- output shorted
SRO fault
5kΩ–0 or wiper fault
emerg. reverse wiring fault
HPD sequencing fault
Throttle Type setting changed
driver output overcurrent
welded direction contactor
signal (when shunt driver
function is disabled)
missing contactor or shunt
low battery voltage
overvoltage
over-/under-temp. cutback
5 — DIAGNOSTICS & TROUBLESHOOTING
POSSIBLE CAUSE
1. Controller defective.
1. M- output shorted to ground.
2. Direction contactor not closing.
3. Direction contactor not closing fast enough.
4. 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.
1. Throttle Type setting was changed without
cycling KSI.
1. Direction contactor coil shorted.
2. Shunt field shorted.
1. Direction contactor stuck closed.
1. Main contactor driver circuit failed.
1. Direction contactor coil open.
2. Direction contactor missing.
3. Shunt field open.
4. Wire to shunt or direction contactor open.
1. Battery voltage <16 volts.
2. Corroded battery terminal.
3. Loose battery or controller terminal.
1. Battery voltage >33V.
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.
Curtis 1207B Manual