External Fault via Option Card

What does Option External Fault mean?

An external fault condition was triggered by the upper controller via an installed option card. This indicates that a fault was detected in the external system connected to the option card, or the option card itself reported an issue to the main drive controller.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Review the upper controller's program logic related to the option card's fault handling to ensure correct interlock behavior.