Over-voltage during acceleration (ovA)

DC bus over-voltage during acceleration.When ovA occurs, the drive closes the gate of the output, the motor runs freely, and the display show s an ovA error.

Reset condition - Reset only when DC bus voltage is lower than 90% of the over-voltage level.

Decrease the acceleration time.
Use brake unit or DC bus.
Replace the drive with a larger capacity model.

Acceleration time is too short

Check if the over-voltage warning occurs after acceleration stops.
When the warning occurs, do the following:
1. Increase the acceleration time
2. Set Pr.06-01 over-voltage stall prevention
3. Increase the setting value for Pr.01-25 S-curve acceleration arrival
time 2