External frequency selection

When all of the multi-speed input signals are turned OFF during external operation, the output frequency conforms to the external analog frequency command (i... More Details >>

Motor heat generation

The surface temperature of approximately 70?C is OK.The following shows the MM-CF352 frame temperature for reference.(Actual temperature rise depends on how ... More Details >>

Advanced magnetic flux vector control

Check the parameters necessary for tuning again.Check if Pr.9 (Electronic thermal O/L relay) and Pr.81 (Number of motor poles) are set correctly. More Details >>

Auto tuning

If you have already set other parameters necessary for tuning (Pr.9, Pr.71, Pr.80, Pr.81, Pr.83, and Pr.84), press the MODE button to return to the frequency... More Details >>

FR-BU2

You cannot use the brake unit FR-BU2 with the FR-E740-1.5K. To use the brake unit, increase the inverter capacity to 2.2K. You can use the brake unit with th... More Details >>

Noise and leakage current (tone modulation control) of low-noise series

When the carrier frequency increases, noise and leakage current increase accordingly. To prevent the noise and leakage current from increasing while keeping ... More Details >>

Can a single potentiometer operate two speed controller?

A single potentiometer cannot operate two speed controller. Reason: Since the control circuit and main circuit of the SC-A speed controller are not insulated... More Details >>

Brake unit

The brake unit operates when the bus voltage exceeds the brake operation voltage. More Details >>

Cumulative power monitoring

They are cleared as well. More Details >>

Optimum excitation control

For the FR-F800 series, in addition to the conventional Optimum excitation control, Advanced optimum excitation control with the improved starting torque is ... More Details >>