Schneider Electric · Altivar Machine ATV320 Variable Speed Drive
An interruption in the internal serial link communication. This refers to communication between internal sub-components of the drive (e.g., control board and I/O board). This critical internal fault can lead to unpredictable behavior or complete operational failure.
Click steps to track your progress.
Power cycle the drive to attempt re-establishment of the internal link.
Check for any visible damage or loose connections between internal boards and ribbon cables.
If the fault persists, it suggests an internal hardware issue on one of the boards, possibly requiring replacement.