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Is it possible to power the Altivar 31 to access the keypad programming parameters without having full voltage on the line terminals?

A small control power transformer could be used to provide nominal voltage (or close to it) on two of the phases. Likely, the drive will have an input phase loss fault but, it would be possible to program the drive via the keypad or powersuite software. A 460V ATV31 drive can be powered up with 110V supply for programming purpose only.

CTA-ID : 2023210
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