Cause : Power memory error comes when an error of the internal memory of the power board has been detected. This means an issue with the drive's memory where the control program is stored. 

EEF2 on your Schneider Electric drive indicates a "Control Software Error". This fault code signifies that the drive encountered an issue with its internal control software.

1. Verify the environment (electromagnetic compatibility).
2. Turn off the device and then turn on again.
3. Return to factory settings.