Issue:
What level of current flow triggers an SCF2 fault on an ATV61/ATV71?

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.

Publicado para: Schneider Electric Mexico