1 Output Phase Loss

What does OPF1 mean?

Detection of a single phase loss on the motor output. This can lead to unbalanced currents, motor vibration, and potential damage to the motor windings if operated in this condition. It is a critical fault indicating a broken connection or internal issue.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Measure the resistance of each motor phase winding to ensure continuity and balance.

2. 4

   Power cycle the drive to reset internal sensing of output phases.