CPU fault
CPU Fault
Mitsubishi · FR-D700 Inverter (Basic)
What does CPU fault mean?
An error has occurred within the inverter's CPU or its peripheral circuits. This is a critical internal hardware fault that can lead to unpredictable operation, improper control, or complete shutdown of the inverter. Electromagnetic interference from nearby devices can sometimes trigger such faults.
Complete Troubleshooting Guide
- 1
Implement measures to suppress electrical noise if there are devices producing excessive noise around the inverter.
- 2
If the situation does not improve after noise reduction efforts, contact your sales representative for advanced troubleshooting or repair.