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.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    If the fault persists, the power board may be damaged and require replacement.

  2. 4

    Check for unusual power supply fluctuations that might cause memory corruption.

Source: Schneider Electric Altivar Machine ATV320 Variable Speed Drive
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