Option slot alarm

What does E.OP1 to OP3 mean?

The inverter output is stopped if a functional alarm occurs in the plug-in option loaded in the corresponding slot (1, 2, or 3). This can include a communication alarm for a communication option or a contact fault for other types of plug-in options.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check the communication cable connected to the option for wire breakage or loose connections.

2. 4

   Verify that the termination resistor (if required for the specific option) is correctly fitted and configured.