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What causes an EEP2 fault on an ATV21 or ATV212 series drive?

Issue:
What causes an EEP2 fault on an ATV21 or ATV212 series drive?

Product Line:
ATV21 and ATV212 series drives, open style or enclosed

Environment:
All models, All serial numbers.

Cause:
Clarification needed on cause and possible remedy.

Resolution:
This fault code indicates that the internal EEprom that stores the drive program has failed.  This can result in the loss of programming, corruption of the programming, and inability to retain new programming.   It is recommended to replace the drive in this situation as operation can no longer be considered reliable.

 
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