citEcar Bubble Buddy, Owner'S Manual

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2,1
LOW BATTERY
VOLTAGE
Low battery voltage.
1. Battery voltage is under voltage cutback
threshold.
2. Corroded battery terminal.
3. Loose battery or controller terminal.
2,2 OVERVOLTAGE Overvoltage.
1. Battery voltage is under voltage cutback
threshold.
2. Vehicle operating with charger attached.
3. Battery was disconnected during regen
braking.
2,3
THERMAL
CUTBACK
Over-/under
temperature.
1. Temperature > 85°C or < -25°C.
2. Excessive load on vehicle.
3. Improper mounting of controller.
4. Operating in extreme environments.
2,4 MAIN DRIVER ON
Main contactor coil held
low.
1. Main contactor missing or wire to coil is
open.
2. Controller defective.
2,5 AUX COIL FAULT
Missing aux (brake,
relay) coil.
1. Aux coil open or not connected.
3,1 MAIN DRIVER OFF
Main contactor driver
held high.
1. Main contactor coil shorted.
2. Controller defective.
3,2 MAIN WELDED Main contactor welded.
1. Main contactor stuck closed.
2. Main contactor driver shorted
3,3
PRECHARGE
FAULT
Internal voltage too low
at startup.
1. External short, or leakage path to B- is
on external B+ connection.
2. Controller defective.
3,4 FIELD MISSING Field winding fault.
1. Motor field wiring loose.
2. Motor field wiring open.
3,5 AUX DRIVER OFF
Aux (brake, relay)
driver held high.
1. Aux coil shorted.
2. Controller defective.
Troubleshooting Chart – Cont’d
4,1
CURRENT SENSE
FAULT
Armature or field
current sensor fault.
1. Controller defective.
4,2
DRIVER
OVERCURRENT
Contactor driver or aux
driver overcurrent.
1. Contactor or aux coil shorted.
4,3 M- SHORTED Internal M- short to B-. 1. Controller defective.
4,4 AUX RELAY DNC Aux relay did not close. 1. Aux relay missing or wire to coil open.
4,5
WELDED AUX
RELAY
Welded aux relay.
1. Aux relay stuck closed.
2. Aux relay shorted.
5,1 KEY SWITCH SRO SRO fault.
1. Key switch not off at power-up.
2. Key switch shorted.
5,2 MAIN COIL OPEN Missing main contactor 1. Main contactor coil open or not connected.
5,3 AUX DRIVER ON
Aux (EM brake or
WalkAway™ relay)
driver coil held low.
1. Aux output short to ground.
2. Controller defective.