Option Card External Fault

What does EF0 mean?

This fault indicates that the communication option card has received an external fault signal from the connected controller or that there is a programming error on the controller side. It can cause the motor to stop according to the drive's stop method settings.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Examine the operation and logic of the controller program for any errors that might prematurely trigger an external fault signal.