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What would cause the ATV71 to fault on EPF2?

Customer replaced ATV61 with ATV71 and moved the Bacnet card over to the ATV71 drive.  Now it trips on EPF2 all the time.

Product line:
Altivar 71, ATV71


ATV71 communication options

The ATV71 drive is not compatible with Bacnet communications.  The Bacnet card will fit into the drive, but will cause the EPF2 error. 
Remove the Bacnet card and cycle power to clear the fault. 

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