Speed control failure due to 20 mA fr...

It seems that there is a read error for 20 mA DC inside the inverter.Setting Pr.905 to 50 Hz while 20 mA DC is actually flowing between the terminals 4 and 5... 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 >>

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 >>

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 >>

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 >>

Current input switching operation

With your setting, since Pr.60 assigns the OH function to the terminal PL, and terminals RL and SD are open, an external protection error occurs. (It does no... 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 >>

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 >>