Cause : Motor auto-tuning fault comes when motor parameters are not set according to the nameplate or motor auto-tuning times out.

"Err19" fault in inovance MD290 drive indicate "Motor auto-tuning" error. This means a problem with the drive's ability to automatically determine the optimal motor parameters for efficient and stable operation.

1. Set motor parameters correctly according to the nameplate.
2. Check whether the AC drive and motor are connected correctly.