Can ATV312 drive be programmed to have a 3-contactor bypass?
Issue:
Programming for 3-contactor bypass on an ATV312
Product Line:
ALTIVAR 312, ATV312
Environment:
All
Cause:
Control design
Resolution:
ATV312 is not available as an enclosed product with bypass feature. However, the drive can be incorporated into a 3 contactor bypass design.
The Isolation (IC) and Bypass (BC) contactors are controlled by an external control circuit. The ATV312 will control the Drive Output contactor (DOC) with an output relay assigned for RUN status. Then use an DOC aux contact for a run permissive input to the VFD.
An example wiring diagram is attached.
Released for: Schneider Electric Canada
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