Inverter: FSSB communication error (COP10B)

What does U mean?

A FSSB (FANUC Serial Servo Bus) communication error has occurred, specifically involving the COP10B connection. This type of error is typically caused by a failure in the COP10B connector or cable, an issue with the Servo Amplifier, or a failure in the CNC unit. Loss of FSSB communication can halt machine operation.

• Connector or cable (COP10B) failure
• Servo Amplifier failure
• CNC failure

1. 1

   Verify the integrity and secure connection of the COP10B connector and cable.

2. 2

   If the COP10B cable is confirmed good, replace the Servo Amplifier.

3. 3

   If the Servo Amplifier is confirmed good, replace the CNC unit.