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What causes a bOF fault code on ATV61 and ATV71 drives?

FA166739

4/04/2018

Issue:
What causes a bOF fault code on ATV61 and ATV71 drives?

Product Line:
ATV61, ATV71

Environment:
All serial numbers, all model numbers.

Cause:
Drive showing 'bOF' on the display.

Resolution:
If the DB resistor protection is set to Freewheel (yes), the drive faults on bOF on power up.  This is because the drive is looking for a DB resistor connected.  
Set parameter brP (DB resistor Protection) to NO or check the resistor that is connected to the PA and PB connections.

CTA-ID : 2062030