What is an EEF1 fault code in the ATV 61/71 drives?

Issue:
ATV61/ATV71 showing EEF1 fault

Product Line:
ATV61 ATV71

Environment:
All serial numbers

Cause:
Will not clear with power cycle

Resolution:
Fault name : EEF1 [Control Eeprom]
Probable cause: Internal memory fault, control card
Remedy:
• Check the environment (electromagnetic compatibility)
• Turn off, reset, return to factory settings
• Inspect/repair the drive
Replace the Control Block

Released for: Schneider Electric USA