Err01 fault in Emotron VS Series Drive indicates Accel overcurrent. This means the inverter’s output current has exceeded the safe threshold during the motor’s acceleration phase.
Possible Causes:
1: The output circuit is grounded or short circuited.
2: The acceleration time is too short.
3: Manual torque boost or V/F curve is not appropriate.
4: The voltage is too low.
5: The startup operation is performed on the rotating motor.
6: A sudden load is added during acceleration.
7: The AC drive model is of too small power class.
Solutions:
1: Eliminate external faults.
2: Increase the acceleration time.
3: Adjust the manual torque boost or V/F curve.
4: Adjust the voltage to normal range.
5: Select rotational speed tracking restart or start the motor after it stops.
6: Remove the added load.
7: Select an AC drive of higher power class.