Cause : Inter-inverter communications link error comes when a communications link error occurred between high-speed serial communication terminal options.

"erb" fault in Fuji FRENIC-VG drive indicate " Inter-inverter communications link" error. This means a problem in the communication between two or more inverters in a system.

1. Connect the optical cable fully.
2. Increase the bend radius of the optical cable to more than 35 mm.
3. Do not expose the optical cable or the connectors on the inverter to intense light.
4. The multiplex system cannot be configured with inverters of different capacities