Auxiliary Input

What does F2 mean?

This fault indicates that an external auxiliary input, often configured as a safety interlock or enable signal, is currently open or inactive when the drive expects it to be closed. This condition prevents the drive from operating and is typically a protective measure. An unresolved open interlock will stop the drive, potentially indicating a safety bypass or an issue with an external control device.

Complete Troubleshooting Guide

1. 1

   Inspect the wiring connected to the auxiliary input terminals for breaks, loose connections, or incorrect termination.

2. 2

   Verify the status of the external device (e.g., safety gate, emergency stop button, external relay) that controls the auxiliary input.

3. 3

   Check the drive's programming parameters (e.g., communications settings) to ensure the auxiliary input is configured as intended and not causing an intentional fault.