Mitsubishi Electric · Mitsubishi FR-E800 Variable Frequency Drive
The inverter output is shut off if an earth (ground) fault overcurrent flows on the inverter's output side (motor/load side). This protective shutdown prevents electrical hazards, motor damage, and further system failures due to insulation breakdown.
Click steps to track your progress.
Check the motor and its connection cable for any signs of a ground fault, such as damaged insulation.
Identify and remedy the specific portion of the system where the earth (ground) fault has occurred.