EEF

EEPROM memory fault

Schneider Electric · ATV32HD11N4 Variable Speed Drive

What does EEF mean?

An internal EEPROM memory fault has occurred within the drive. This indicates a potential issue with the drive's non-volatile memory, which stores configuration and operating data, possibly leading to data corruption or loss.

Complete Troubleshooting Guide

  1. 1

    Check the operating environment for sources of electromagnetic interference (EMI) that could affect memory integrity.

  2. 2

    If the problem persists after environmental checks, replace the drive unit as the internal memory may be permanently damaged.

Source: Schneider Electric Manual