Insulation level of the MM-EFS

F class (155 deg C) 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 >>

Motor heat generation

The surface temperature of approximately 70?C is OK.The following shows the MM-CF352 frame temperature for reference.(Actual temperature rise depends on how ... More Details >>

Motor with reduction gears

We can manufacture magnet motors with reduction gears.We have no catalog of them.Contact our sales representative for details. More Details >>

Plug-in options

We do not provide such plug-in optional cards. More Details >>

Relationship between undervoltage war...

When an instantaneous power failure occurs and the inverter's bus voltage drops below the standard value, it outputs an undervoltage warning and stops its ou... 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 >>

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 ...

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 >>

Fault contact state when input side p...

The NC contact does not open when the power supply is cut off whether the inverter is operating or ceased.When the input side power supply is cut off, the DC... More Details >>