ILF1

Internal Link Fault 1

Schneider Electric · Altivar Machine ATV320 Variable Speed Drive

What does ILF1 mean?

Indicates a communication interruption between option card 1 and the drive. This fault code is read-only and persists until the drive is disconnected and reconnected to power. It implies that the functionality of option card 1 is unavailable, potentially impacting external communications or I/O.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Power cycle the drive to attempt a reset and re-establish internal communication.

  2. 4

    If possible, try swapping option card 1 with a known good card to isolate the issue.

Source: Schneider Electric Altivar Machine ATV320 Variable Speed Drive
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