65
Troubleshooting Chart
no power or defective controller
controller powered up; No faults
1)Temperature >8℃C or < -10℃.
2)Battery contact bad..
3)Work under extreme severe environment.
4)Electromagnetic brake does not release normally.
1)Throttle input wire open or shorted.
2)Throttle potentiometer fault.
3)Throttle potentiometer fault.
1)Speed limit potentiometer wiring open or short.
2)Speed limit potentiometer open.
1)Battery voltage <17 volts.
2)Battery or controller bad contact.
1)Battery voltage >31 volts.
2)Still connect the charger when truck running.
3)Battery bad contact.
1)Main contactor coil wrongly turn on.
1)Main contactor adhere or open.
2)Main contactor coil drive wrong.
1)Main contactor coil wrongly turn off.
1)Incorrect throttle operation.
2)Throttle port or its mechanical part has fault.
1)Electromagnetic brake coil open..
2)Electromagnetic brake drive short..
1)Controller fault.
2)Low battery voltage.
1)Electromagnetic brake coil short.
2)Electromagnetic brake drive open.
1) Throttle, key switch, push or prohibit input, some
actions in wrong operation order.
2)Wrongly adjust accelerator.
1)Motor or motor wiring short.
2)Controller fault.
1)Motor voltage can’t match throttle input.
2)Motor or motor wiring short.
3)Controller fault.
Eeprom Checksum Fault (②)
1)EEPROM fault or failure.
Battery Disconnect Fault (①)
1)Battery does not connect.
2)Battery contact bad.
①= Must cycle keyswitch to clear.
②= Must use programmer to clear, as follows: select Program menu, alter data value of any parameter, cycle key switch.