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What can cause an CrF1 precharge fault on the ATV61 and ATV71 drives?

Published date: 21 August 2019

Issue:
Getting a CrF1 precharge fault on the ATV61 and ATV71 drives.

Product Line:
Altivar ATV61 and ATV71

Environment:
All

Cause:
Drive is tripping on an CrF1 fault.

Resolution:
CrF1 is a precharge fault
Possible cause: Load relay control fault or charging resistor is damaged.
Remedy: Try power cycling the drive.
If issue persists this could be caused by having internal connection problems in drive.
May require replacement or repair to remedy issue.

 

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