Cause : Groups H02 and above parameters abnormal comes when the control power voltage drops instantaneously due to instantaneous power failure occurs during parameter storage.

Er.101 fault in inovance IS650 servo drive indicates Groups H02 and above parameters abnormal. This means there is an parameter issue in drive.

1. Check whether it is in the process of cutting off control power (L1C, L2C) or whether instantaneous power failure occurs.
2. Check whether instantaneous power failure occurs during parameter storage.
3. Check whether parameter update is performed frequently from the host controller.
4. Check whether software is upgraded.