Why does the speed vary during operation on my Mitsubishi Electric FR-A500 Inverter?
- TTaylor GloverJul 31, 2025
If the speed of your Mitsubishi Electric Inverter varies during operation, verify that the load and the frequency setting signal are stable. Make sure the frequency setting signal isn't affected by induced noise. For advanced magnetic flux vector control, confirm the applied motor capacity (Pr. 80) and pole number (Pr. 81) settings match the inverter and motor capacities, and the wiring length is within 30m (98.42 feet). Also, check the wiring length for correctness in V/F control.