Output phase loss U phase (oPL1)

U phase output phase loss

Check the cable and replace it if necessary.
Check the motor’s internal wiring. If the fault still exists, replace the motor.

Check if the control board cable is loose. If yes, reconnect the cable and
run the drive to test. If the fault still exists, return to the factory for repair.
Check if the three-phase current is balanced with a current clamp meter

Fault treatment parameter

Pr.06-45
0: Warn and continue operation
1: Fault and ramp to stop
2: Fault and coast to stop
3: No warning

Check drive IGBT using multimeter & IGBT driving circuit using multimeter.