Monitoring current value

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

Installation clearance of inverters

Keep 1 cm or more of clearance for 3.7 K or smaller, and 5 cm or more for 5.5 K or larger.If the clearance is too small, the cooling effect is lowered. Secur... More Details >>

Inverter control power supply

To supply power via R1 and S1, 60 VA or higher is necessary for 22K or lower and 80 VA or higher is necessary for 30K to 55K.Note that the rush current of ap... More Details >>

Built-in regenerative resistor

For both the 200 V and 400 V classes have the built-in regenerative resistor for 0.4 K to 7.5 K.The permissible power is as follows:Capacity: Short-time perm... More Details >>

Installation method of AM-5 terminal ammeter

The AM-5 output is 0 to 10 VDC voltage output.Therefore, you need to install a voltmeter.Also, since the inverter output current is displayed, the scale of t... More Details >>

Parameter writing via CC-Link

Pr.133 can be written.Since the data code numbers of parameters are duplicate, target parameters are switched by link parameter extended setting.You can acce... More Details >>

Encoder cable length restriction

If the cable length is longer than 100 m, speed may not be read correctly due to voltage drop and waveform deformation of the encoder signal. Therefore, use ... More Details >>

FR-PA02 built-in potentiometer

Change Pr.146 (Built-in potentiometer switching) to "0" (built-in frequency setting potentiometer). More Details >>

Auto tuning

Check if any device is connected to the inverter's external terminal.In particular, check if MRS and SD are short-circuited.If they are short-circuited, open... More Details >>

Operation panel (FR-PA02)

Set Pr.146 (Built-in potentiometer switching) to "0".This allows for using the potentiometer built in the FR-PA02 to set the frequency.(Set this parameter to... More Details >>