Option alarm

What does E.OPT mean?

This alarm stops the inverter output if two or more communication options are fitted (with exceptions for FR-A5NR). If a high power factor converter is connected, this alarm appears if an AC power supply is accidentally connected to the R, S, T <L1, L2, L3> terminals, which can result in inverter damage.

• An alarm condition has been triggered by an optional accessory or expansion module.
• Communication failure with a connected option device.
• Option device internal fault.
• Incorrect configuration of the option device within the system.

Click steps to track your progress.

1. 1

   Verify that only one communication option (excluding FR-A5NR if used solely for relay output) is installed in the inverter.

2. 2

   If a high power factor converter is connected, confirm that no AC power supply is connected to the R, S, T <L1, L2, L3> terminals.

3. 3

   Check the setting of parameter Pr. 30.

4. 4

   Verify the wiring for high power factor converter connections.