Power distribution and control system
Maintenance recommendations:
1. Confirm that the 12V power supply is normal;
2. Replace the motor control unit.
P100722 Motor overspeed fault
No rotary
transformer
fault
1. Sudden load
reduction (slipping)
2. Motor control
failure
Maintenance recommendations:
1. If recoverable, no processing is required;
2. If not recoverable, replace the motor control unit.
P100622 Motor high speed warning
DTC triggering conditions
No rotary
transformer
fault
The motor speed
continuously exceeds
7500rpm for 1000m
1. Sudden load
reduction (slipping)
2. Motor control
failure
Maintenance recommendations:
1. If recoverable, no processing is required;
2. If not recoverable, replace the motor control unit.
P0A2F4B Motor overtemperature fault
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