MAINS OVERVOLTAGE

What does OSF mean?

This fault occurs when the incoming line voltage supplied to the drive is too high or the line supply is disturbed by transient spikes. Persistent overvoltage conditions can stress and damage the drive's internal power components, reducing its lifespan. Immediate action is required to protect the drive.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If line voltage is consistently high, consider installing appropriate line reactors or voltage regulation equipment.