Controller operating mode not allowed

What does 4502 mean?

The value specified for the controller operating mode is not allowed, as the value range is limited to [1]. An incorrect operating mode prevents the controller from initiating or maintaining its intended control function. This will effectively stop the controller from performing any motion or regulation tasks.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Correct any incorrect operating mode entries.

2. 4

   Save configuration changes and restart the NC system.