Cause : Control power undervoltage comes when the control power is unstable or fails. The control power cables are in poor contact

Er.430 fault in inovance IS650 servo drive indicates Control power undervoltage. This means incorrect control power supply.

1. Check whether it is in the process of cutting off the control power (L1C, L2C) or instantaneous power failure occurs.
2. Check whether control cables are well connected.