Inverter: FSSB communication error (COP10B)

What does U mean?

A communication error has occurred on the FSSB (FANUC Serial Servo Bus) via the COP10B connector. This indicates a problem with the COP10B connector or cable, the SVM, or the CNC unit, preventing proper data exchange for servo control.

• Connector or cable (COP10B) failure.
• SVM failure.
• CNC failure.

1. 1

   Inspect the COP10B connector for secure connection and damage.

2. 2

   Check the COP10B cable for continuity and shorts.

3. 3

   Verify termination settings on the FSSB bus.

4. 4

   Check CNC diagnostic screens for further FSSB-related errors.