Mitsubishi Electric · FR-A800 Variable Speed Drive (Separated Converter)
These faults indicate an issue with one of the communication option cards installed in the FR-A800/A800 Plus Series drive (E.OP1 for connector 1, E.OP2 for connector 2, E.OP3 for connector 3). The drive detects a problem with the option, leading to a protective shutoff.
Click steps to track your progress.
Check the physical installation of the communication option card(s) corresponding to the fault (e.g., connector 1 for E.OP1). Ensure secure seating in the connector.
Verify the compatibility of the communication option card with the FR-A800/A800 Plus Series drive model.
Inspect the communication cable connected to the option card for damage or incorrect wiring (e.g., open circuits, short circuits).
Review the parameters specific to the communication option (e.g., network address, baud rate) and ensure they are correctly configured according to the network requirements.
If multiple communication options are present, try disabling or removing one at a time to isolate the problematic card.