The undervoltage warning of the inverter is judged based on the voltage of the main circuit as follows. Power failure only at the main circuit: Output an und... More Details >>
Using MR Configurator2, you can perform the positioning operation when there is no command from the controller. You can perform the operation specifying the ... More Details >>
Difference between the current comman...
The “current command” is the command value for the current control (torque control) and the “torque” is the feedback value controlled by the current control ... More Details >>
Parameter group is not displayed.
Some parameters are write-protected. (MR-J4/MR-J3: PA19)The parameter to be displayed is determined by the setting value of this parameter. Do as follows for... More Details >>
"OV3" occurs during an inverter stop.
An error may have occurred due to the rise of the main circuit voltage of the inverter caused by a power surge. Check for the power supply voltage. If the ca... More Details >>
Servo amplifier software version
Using MR Configurator2, you can check “servo amplifier software number” in [System Configuration] on [Diagnosis] menu. The last characters mean the servo amp... More Details >>
Servo motor does not rotate when the ...
The pulse train form outputted with the controller and the setting of servo amplifier (command pulse input form) may differ. Check the parameter settings. (M... More Details >>
Proper use of AC reactor and DC reactor
1. ACL has the input power factor of approximately 90% and DCL has the input power factor of approximately 95%. Therefore, DCL has a higher input power facto... More Details >>
When Pr.79 is set to "3", the JOG operation is not available by turning ON the terminal JOG.Instead of the JOG function, you can set the low-speed RL of the ... More Details >>
Parameter copy method of FR-Configurator
The data can be copied to other inverters. 1. Save the parameter of the inverter to be copied with extension "pr3" by using "export". 2. Replace the connecte... More Details >>
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