Option Card External Fault

What does EF0 mean?

This fault occurs when the communication option card receives an external fault signal from the connected controller, or if a programming error exists on the controller side causing an external device's alarm function to activate. This indicates an issue originating from an external device or its control logic, leading to a protective shutdown of the drive.

Complete Troubleshooting Guide

1. 1

   Identify the external device or controller program that triggered the external fault.

2. 2

   Resolve the underlying issue within the external device or correct the programming error in the controller.

3. 3

   Clear the external fault input signal from the controller.