EKKO EK18RF, Service Manual

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11
8. Fault code of the walking controller
CODE fault cause
1
Controller Over
current
1, motor external U, V or W connection short circuit
2
Current Sensor Fault
2. Motor parameters do not match
3 Precharge Failed
3. The controller is faulty
4 Controller Severe
Undertemp
1, motor U, V, W through the stator on the car body short circuit,
resulting in leakage
5
Controller Severe
Overtemp
2. The controller is faulty
6
Severe Undervoltage
1. Negative load is connected to the positive end of the capacitor, so
that the capacitor cannot be charged normally
7
Severe Overvoltage
1. The working environment of the controller is too harsh
8
Controller Undertemp
Cutback
1. The working environment of the controller is too harsh
9 Controller Overtemp
Cutback
2. Vehicle overload
10
Undervoltage Cutback
3. The controller is incorrectly installed
11
Overvoltage Cutback
1. Battery parameters are incorrectly set
12
+5V Supply Failure
2. Power consumption of non-controller system
13
Digital Out 6 Failure
3, the battery impedance is too large
14
Digital Out 7
Overcurrent
4. The battery is disconnected
15
Motor Temp Hot
Cutback
5, the fuse is disconnected, or the main contractor is not connected
16
Motor Temp Sensor
1. The motor temperature sensor is incorrectly connected