Automatic restart after instantaneous power failure

The inverter has the automatic restart after instantaneous power failure function. By setting Pr.61 to other than "9999", the encoder detects the speed of th... More Details >>

Noise filter

Noise filtering and harmonics suppression are different matters and you need to install the line noise filter (FR-BSF01) against noise and DCL (FR-BEL) again... More Details >>

Motor heat generation at low-speed operation

When using the FR-A540-3.7K in Advanced magnetic flux vector control, operating the motor continuously under the 100% torque at up to 3 Hz does not cause a h... More Details >>

Easy setting mode

If "HOLD" is displayed, the key lock mode enabled. Press the "MODE" key for two seconds. Then, change the setting of Pr.79 to "1". More Details >>

Output frequency

In the initial setting, it is set to 120 Hz. More Details >>

Electromagnetic contactor

It is not recommended to start and stop the inverter with the electromagnetic contactor (MC). This will accelerate the deterioration (due to the inrush curre... More Details >>

FR-PA07

When Pr.79 is set to "3", since the start command is in the External operation mode, the RUN key of FR-PA07 does not work. More Details >>

Frequency command

Since the initial value of Pr.13 (Starting frequency) is 0.5 Hz, the operation does not start unless 0.5 Hz or higher frequency is set. When 0.49 Hz is set i... More Details >>

Residual voltage at the output shutoff

The rotation speed has almost no effect. The residual voltage increases when the torque boost is increased, but no adjustment is required. More Details >>

FR-A800 "Parameter for the communication setting"

These parameters are used for the communication compatible with the communication protocol of the Ethernet IP of the HMS optional circuit board (A8NEIP_2P). More Details >>