Cause : Load loss comes when the output current of AC drive is smaller than load loss detection level. This fault also comes when you run drive without motor.

"Err30" fault in inovance MD310 drive indicate "Load loss". This means a problem with the load connected to the drive. This can cause the drive to operate incorrectly or shut down.

• Check whether load is disconnected or the setting of load lost detection time satisfies actual running condition.