What causes FST on the display of the Altivar drives?

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Issue:
FST on the display of the Altivar drives.

Product Line:
All Altivar Drives

Cause:
Logic input triggering a fast stop command.

Resolution:
FST display means fast stop. This is a drive status, not a drive fault. This status happens if a logic input is assigned to FST and the logic input is active. The second option is when the VFD is in a decelerating state and the type of stop is assigned to fast stop (FST).

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