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What causes E-17 fault on an ATV21 / ATV212 series drive?

Issue:
What causes E-17 fault on an ATV21 / ATV212 series drive?

Product Line:
ATV21 and ATV212 series drives

Environment:
All models, All serial numbers

Cause:
Clarification of fault code needed

Resolution:
E-17 is displayed on the ATV21 / ATV212 series drives when a button on the keypad is held down for more than 20 seconds.  If no button is being held down, then this could be an electrical problem with the switch were it is making contact when it is not being pressed, or possibly a problem with the microprocessor that thinks the button is being pressed when it is not.  As there are very few replacement parts for the ATV212 series, and none for the ATV21 series, replacement of the entire drive is often necessary to correct this problem.
 
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