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What can cause an EEF2 fault on the ATV61 and ATV71 drives?

Issue:
What can cause an EEF2 fault on the ATV61 and ATV71 drives?

Product Line:
Altivar ATV61 and ATV71

Environment:
All

Cause:
Drive is powering up with an EEF2 fault.

Resolution:
EEF2 is an Power Eeprom fault.  This normally means there is a problem with the main control board and the drive is getting a internal memory fault.
Remedy:  Check the environment (electromagnetic compatibility),  Try turning the drive on and off ( power cycle) to see if the fault clears..  If the problem does not clear you might  have to replace the main control board or get the drive repaired.
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