EFB load fault

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.

• EFB option module firmware is corrupted or incomplete due to an interrupted update or memory error.
• Main drive firmware version is incompatible with the installed EFB protocol firmware version (e.g., main firmware v3.x and EFB firmware v2.x).
• EFB option module hardware fault preventing proper firmware loading during drive startup.
• Incorrect EFB protocol package selected for download or stored on the drive's memory during a firmware update procedure.
• Insufficient memory available on the EFB module or main control board to load the protocol firmware.

Click steps to track your progress.

1. 1

   Record current drive and EFB firmware versions (e.g., from P0-01 and P0-02) for reference.

2. 2

   Download the compatible EFB protocol firmware package for the drive's main firmware version from the manufacturer's website.

3. 3

   Attempt to re-flash the EFB protocol firmware using the drive's flashing utility (e.g., via Drive Composer through USB or Ethernet).

4. 4

   Power down the drive, remove the EFB option module, inspect its connectors for damage, and re-insert it firmly into its slot.

5. 5

   If the fault persists after re-flashing and re-seating, replace the EFB option module.