Cause : EXT FAULT 1 comes when a generic fault code that signifies an issue detected by an external device connected to the drive through its communication interface.

The F0014 code in your ABB ACS310 drive indicates an external fault 1. This is a generic code for faults originating from external devices or signals connected to the drive.

1. Check external devices for faults.
2. Check parameter 3003 EXTERNAL FAULT 1 setting.