Mitsubishi FR-A Series- FR-A800, FR-A770/A701, FR-A700, FR-A800-E, FR-A741 Drive
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Mar 30, 2024 7:37 am
Cause : Communication option fault comes when a communication line error occurs in the communication option. Check for a wrong option function setting and operation.
- Check that the plug-in option is plugged into the connector securely.
- Check that the terminating resistor is fitted properly.
- Check for a break in the communication cable.
