Frequency display deviation

If you are using an external VR, influence by noise is probable.Setting Pr.74 (Input filter time constant) to a higher value stabilizes the frequency command... More Details >>

Vector inverter option

Just by adding this option, encoder pulses connected to the inverter or option are output.You can also divide the pulse train output. More Details >>

FR-BSF01 wiring

The filtering effect is higher as the cable is wound more.However, if the cable is wound more than 4T on the inverter output side, since the inverter's outpu... More Details >>

Can I set the FR-F series parameters?

The FREQROL-F500 series has been already supported by the setup software released since February 2000. More Details >>

Operation command terminal switching

It rotates in the forward direction while STF is ON.And then, when STR is turned ON and STF is turned OFF, the inverter decelerates down to 0 Hz within the s... More Details >>

Monitoring current value

With the FREQROL-U100 series, pressing and holding the [SET] switches to the current monitor. More Details >>

Brake sequence function

Since the brake sequence function requires Advanced magnetic flux vector control and advanced flux control is applied to 0.4 kW or higher motors, you cannot ... More Details >>

DC injection brake

1. The braking torque can be considered 50% of the motor rated torque.2. The largest stress the DC injection brake gives to the motor is the motor heat gener... More Details >>

Inverter stop-on-contact control

Use the FREQROL-A500 series inverter with the optional FR-A5NC.Then, you can implement both of stop-on-contact control and CC-Link operation. More Details >>

Instantaneous power failure of facilities

1. If the start signal is present when the power and communication restore, the inverter starts operation. 2. Similarly to the above, if the start signal is ... More Details >>