Fault Code Table - HANGCHA Mini Range CDD12-A2MJ-SZ Operation And Maintenance Manual

3.2.2 Fault code table

The controller has a fault diagnosis function and is equipped with an external fault indicator port.
When the controller fails, the fault indicator flashes in the form of a two-digit code. The specific
fault type information and fault code are executed in accordance with Table B1.1.
The format of the controller fault code is as follows:
¤ ¤¤¤
The fault codes represented above are (1,3), (2,3) and (3,2).
Code
1,1
Temperature failure
1,2
Accelerator failure
1,3
Undervoltage fault
1,4
Overvoltage fault
1,5
Emergency reverse switch operation error
2,1
Main contactor adhesion failure
2,2
Main contactor open circuit fault
2,3
Brake disconnection fault
2,5
Precharge failure
3,1
Brake closure failure
¤¤ ¤¤¤
（1,3）
Fault
¤¤¤ ¤¤
（2,3）
1. The bottom plate temperature is too high
2. The motor is overloaded.
3. The ambient temperature is too high or too
low.
4. The electromagnetic brake is released.
1. The accelerator wiper is disconnected. 2.
The accelerator is damaged.
3. Wrong choice of accelerator type.
1. The battery voltage is <17 volts.
2. The connection of battery B+ and B- loop
is loose.
1. Battery voltage>31 volts.
2. When the vehicle is running, the battery is
in a charging state.
3. Poor connection of battery B+ and B-
circuits.
1. Before KSI is powered on, the emergency
reverse switch is closed.
1. The main contactor is stuck or stuck.
2. The main contactor drive failure.
1. The main contactor drive circuit is open.
1. The brake drive circuit is short-circuited.
2. The brake coil is open.
1. The pre-charge circuit is damaged.
2. The MOSFET is damaged.
1. The brake drive circuit is open.
2. The brake coil is short-circuited.
74
（3,2）
Fault diagnosis