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What causes an OPF1 fault on the ATV61 or ATV71 drives?

OPF1 fault on an ATV61 or ATV71 drive.

Product Line:
Altivar ATV61 and ATV71

All ATV61 and ATV71 drives

1 phase loss between the drive and motor.

This fault is triggered when the drive detects one of the motor phases has been lost (or has very low current) for more than 500 msec.
Check the connection between the drive and motor.
Another suggestion would be to go to 1.8 menu: Scroll down to Output Phase loss- Output time detect- set to 5 secs.  Power cycle the drive and then try to run again.

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