Video: What can cause an EPF1 external fault on the ATV61 and ATV71 drives?

Issue:
Troubleshooting EPF1 Fault on Altivar™ ATV61 & ATV71 Drives

Product Line:
Altivar ATV61 and ATV71 drive

Cause:
Assigned input for external fault is open or not closed triggering an external fault.

Resolution:
EPF1 [External flt-LI/Bit] • Fault triggered by an external device, depending on user.  Check the external fault assignment to see if that logic input is active or not.




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