Option fault

What does E.1 to E.3 mean?

The inverter output is stopped if a contact fault occurs at the connector between the inverter and a communication option, or if there is a fault of the communication option itself. The numbers 1 to 3 indicate the specific option slot numbers where the fault is detected.

1. 1

   Verify that the communication option for slot 1, 2, or 3 is plugged into its respective connector securely.