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.

Complete Troubleshooting Guide

1. 1

   Check the motor wiring connections from the drive output terminals to the motor for loose or broken connections.

2. 2

   Inspect motor contactor contacts for wear or pitting if present in the circuit.

3. 3

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

4. 4

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