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    What can cause an EPHO on an ATV212 drive?

    Issue:
    What can cause an EPHO on an ATV212 drive?

    Product Line:
    ATV212

    Environment:
    All models and serial numbers

    Cause:
    Loss of one or more output phases

    Resolution:
    Be sure that you're running a 3-phase motor. Altivar drives cannot be used on single phase motors. 
    Determine the cause of the missing output phase (such as a bad connection, an output disconnect, or an open winding in the motor), and resolve it.
    Check parameter F605 (Output Phase Loss). This should be set to 0 (disabled) if you're using a bypass contactor with this drive. It can also be set to 0 for testing purposes. 

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