EFB load fault

What does 6684 mean?

The embedded fieldbus (EFB) protocol firmware could not be loaded, or there's a version mismatch between the EFB protocol firmware and the drive firmware. This means the EFB functionality is completely disabled. The drive cannot communicate via EFB.

• Corrupted Embedded Fieldbus (EFB) protocol firmware file in the drive's memory, preventing proper loading.
• EFB firmware version incompatibility with the current drive's main firmware, typically after an update of the main drive software.
• Transient power interruption or internal memory write error during the EFB firmware loading process.
• Faulty EFB option module hardware preventing correct firmware storage or execution on the module itself.

Click steps to track your progress.

1. 1

   Verify EFB option module firmware version compatibility against the drive's main firmware version using the control panel (e.g., menu `INFO > VERSIONS`).

2. 2

   Attempt to re-upload the EFB protocol firmware file to the drive via a communication port (e.g., USB or Ethernet) using the manufacturer's software tool.

3. 3

   Perform a full power cycle of the drive system (main power disconnect for at least 30 seconds) to clear temporary memory states.

4. 4

   Physically remove the EFB option module, inspect its connector pins for damage, and firmly reinsert it into its slot.

5. 5

   As a last resort, temporarily replace the EFB option module with a known-good module to confirm hardware integrity.