Wiring and terminal

The ferrule terminal or single wire can be used for the control circuit wiring. More Details >>

Magnetic flux and tuning

After inputting the start signal performing the tuning, output the output frequency. 　The tuning ends in approximately 500 ms in maximum after started. Durin... More Details >>

Durability in multi-speed setting

1. You can set the minimum time by setting the acceleration/deceleration time and acceleration/deceleration reference frequency. 2. No problem with the termi... More Details >>

Parameter list

The setting memo of the parameter list seal is not provided with the FR-A500 Instruction Manual. More Details >>

Comparison of noise between FR-A100 and FR-A100E

The setting ranges of the carrier frequency are:- FR-A100: 2 kHz to 14.5 kHz- FR-A100EXCELLENT: 0.7 kHz to 14.5 kHzThe range of the FR-A100EXCELLENT is exten... More Details >>

Compatibility of the function with FR-A100

Yes. Compared with the FR-A100:- The PI control function is added.- Fast-response current limit operation is improved.- Cumulative energy monitor is added. 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 >>

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 >>

I want to display the speed on an analog meter.

As the inverter does not display the speed in m/min, let us explain using the speed display in r/min. In this case, set Pr.52 to "6" (operation panel display... More Details >>

Rotation ripple at low speed

The rotation ripple data for 1.5 kW is shown below.Drive unit: MD-CX520-1.5KMotor: MM-CF152Load: None (motor alone), carrier frequency: 2 kHz, wiring length:... More Details >>