EEF2
Power EEPROM Error
Schneider Electric · Altivar Machine ATV320 Variable Speed Drive
What does EEF2 mean?
A detected error within the Power EEPROM. This memory typically stores power stage specific calibration data and hardware information. Corruption can lead to incorrect power stage operation, impacting motor control and potentially causing internal hardware damage.
Complete Troubleshooting Guide
- 1
Attempt to re-upload the drive's configuration parameters from a known good backup.
- 2
Perform a factory reset and carefully reconfigure the drive.
- 3
If the fault persists, the power board may be damaged and require replacement.
- 4
Check for unusual power supply fluctuations that might cause memory corruption.