When motor current is large

If the parameters related to the output voltage are not changed from the initial setting, it is unlikely that the output current at 55 Hz and 60 Hz is double... More Details >>

Power supply ON/OFF

1. It is OK to open MC on the output side while the inverter is operating.2. It is OK to open the input side in case of emergency stop. More Details >>

Can I use a brake resistor with the FR-S500?

The brake unit and its resistor FR-S520-0.4K to 3.7K are available.Mitsubishi Electric FA Global Website also explains so.(Note that the GZG GRZG discharging... More Details >>

Output phase loss protection error

- How to find out lost phaseMeasure the three-phase current when the error has occurred.The phase with a small (or no) phase current is lost.- Possibility of... 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 >>

Fault output terminal load pattern

The fault output terminals A and C, and B and C of the power regeneration converter FR-RC are not capable of a micro load of 5 VDC±5%, 10 mA. The minimum loa... More Details >>

AC reactor and line noise filter wiring

Basically, either is OK.Both orders are electrically identical, but "1" is recommended since it is preferable to place the line noise filter close to the inv... More Details >>

Speed 2 operation with potentiometer on operation panel

Yes. Set parameters as below.For FR-E500Set Pr.79 =3, and Pr.146= 0.Multi-speed is prioritized.For FR-S500Set Pr.79 = 3, and Pr.53 = 1.Multi-speed is priorit... More Details >>

Concurrent monitoring of running frequency, output voltage, and output current

Add an analog output by the FR-A5AY.Monitor the three output; output AM (0 to 5 (10) V) and optional 4 to 20 mA, and 0 to 5 (10) V. More Details >>

Surge voltage of 400 V inverter

1. Since the voltage resistance of the standard motor is not improved, it is recommended to use an "insulation-enhanced motor".If you are using an insulation... More Details >>