Mitsubishi Electric · FR-A800 Troubleshooting Course
This is a general error indication displayed by the FR-A800 inverter, signifying that a fault condition has occurred. The specific cause requires further diagnosis, typically by checking the fault history or other indicators on the operation panel, as this code is a placeholder for a more specific issue.
Click steps to track your progress.
Check the FR-A800 inverter's fault history log on the operation panel or via FR Configurator2 for a more specific fault code that occurred just before or concurrently with 'Err.'.
Perform a power cycle of the FR-A800 inverter (turn off, wait, then turn on) to reset temporary states.
Verify that all critical parameters are set correctly according to the application and motor nameplate data.
Inspect all wiring connections (power, control, communication) to ensure they are secure and free from damage.
Monitor the power supply for stability.