6684

EFB load fault

ABB · ACS580 General Purpose Drive

What does 6684 mean?

The embedded fieldbus (EFB) protocol firmware could not be loaded, or there is a version mismatch between the EFB protocol firmware and the main drive firmware. This critical error prevents the EFB from functioning, thus disabling fieldbus communication.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    If the issue persists, contact your local ABB representative for advanced diagnostics and potential firmware re-installation.

Source: ABB ACS580 General Purpose Drive
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