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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

Changing parameters

Before you change Pr.7 and Pr.8, you must switch to the PU operation mode. Switch to the PU operation mode and change them. More Details >>

Built-in potentiometer and current input switching control

For setting the frequency, you cannot switch between the operation panel potentiometer and current input from an external source.To switch between the extern... More Details >>

Control method

1. Can I set the frequency by the external potentiometer when multi-speed signal is 0 (nothing is input)?-> It is possible by using the external operation... More Details >>

Brake unit selection

Since the FR-A540-0.75K has a brake transistor for resistor regenerative driving inside the inverter, you do not need to use BU. Just remove the jumper from ... More Details >>