InF

Internal Fault

Schneider Electric · ALTIVAR 28 Variable Speed Drive

What does InF mean?

This fault indicates an internal malfunction within the drive controller, potentially stemming from environmental electromagnetic interference or an improper connection/disconnection of the local control option while powered. Ignoring this can result in total drive failure and loss of control.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    If troubleshooting steps do not resolve the fault, the drive controller unit must be replaced.

Source: Schneider Electric ALTIVAR 28 Variable Speed Drive
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