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What level of current flow triggers an SCF2 fault on an ATV61 or ATV71 series drive?

Published date: 28 July 2019

Issue:
What level of current flow triggers an SCF2 fault on an ATV61 or ATV71 series drive?

Product Line:
ATV61 / ATV71 series

Environment:
All models, All serial numbers

Cause:
Information not available in current literature.

Resolution:

SCF2
 
Principal :
The drive is protected against impedance (slow) short circuit, phase to phase or phase to ground on the output of the drive.
 When there is a impedant short circuit the drive trips in SCF2 and the fault relay opens
 
Detection time:
It’s a software detection (a few ms).  Output current sum > 25% of the rated current of the drive.
 
 

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