OPF
Motor Phase Failure
Schneider Electric · ALTIVAR 28 Variable Speed Drive
What does OPF mean?
This fault indicates a loss of one or more phases in the connection between the drive controller's output and the motor. This condition can lead to single-phasing of the motor, causing excessive current in the remaining windings and potential motor damage or overheating.
Complete Troubleshooting Guide
- 1
Thoroughly inspect all electrical connections between the drive controller's output terminals and the motor terminals for looseness, damage, or disconnections.