Cause : Overspeed comes when actual speed of servo motor exceeds overspeed level. This can lead to various issues, including mechanical damage and system instability.

Er.500 fault in inovance IS650 servo drive indicates Overspeed . This means the motor actual speed has exceeded the overspeed limit set in the drive parameters.

1. Check whether UVW phase sequence on servo drive is consistent with that on motor side.
2. Check whether overspeed level is smaller actual maximum motor speed.
3. Check whether speed feedback exceeds overspeed level through the drive debugging platform of Inovance.