Communication fault occurs

The possible causes are as follows. While the inverter power supply is turned ON, inserting the modular jack to the connector with the operation panel remove... More Details >>

Display unit of operation panel

Set the rotations per minute that is obtained while operating at the frequency set with Pr.505 (Speed setting reference) to Pr.37 (Speed display).For example... More Details >>

Auto tuning

If "1" is not shown on the frequency monitor, some of the parameters necessary for auto tuning may not be set correctly.Set rated motor current of Pr.81 (Num... More Details >>

FR-A7AR E kit (Relay output function)

Yes, you can set all of the three relay contacts to fault contacts.Set Pr.320 (RA1 output selection), 321 (RA2 output selection), and 322 (RA3 output selecti... More Details >>

Terminal CS

FR-E700, D700, and F700PJ do not have the terminal CS and you can only control automatic restart by setting Pr.57 (Restart coasting time). More Details >>

Cycle operation mode, continuous operation mode, torque characteristic selection

When using a motor with an encoder by performing auto tuning, you need to choose the operation mode or continuous operation mode depending on the application... More Details >>

Soft-PWM

The inverter uses PWM control to change the output voltage and frequency to vary the motor speed. PWM stands for Pulse Width Modulation. Voltage is chopped i... More Details >>

Connection with personal computer

Connection method for the A500 and E500 is shown in the figure below. The figure is given in an Excel file. Figure 1 More Details >>

Overcurrent at low speed

"8" display in offline auto tuning means forced stop by the operator. This means that you stopped operation before tuning completes. 　With this forced stop, ... More Details >>

Speed does not exceed 46 Hz

Since the inverter displayed "0.00" instead of an error when the inverter speed dropped to 0 Hz and stopped by holding the winding machine by hand, it is con... More Details >>