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.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 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.