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What ramifications would there be if a drive or soft start is powered on with 200 volts at 400 Hz?

FA236746

21 July 2022

Issue:
Line power is 200v at 400 hz.

Product Line:
All drives and soft starts

Environment:
All models and serial numbers

Cause:
None

Resolution:
The EMC filter caps that are line to line may draw too much current. If the drive has SCR rectifier for softstart, they may not work above 60 Hz. DC bus capacitors have not been evaluated for 400 Hz power.