Mitsubishi FREQROL-E700, Manual

Page: 42 / 108

3-10
3.5.3 Pr. 3 Base frequency
Use this function to adjust the inverter output (voltage, frequency) to match the motor rating.
Pr. Name Initial value Setting range Description
3 Base frequency 60Hz 0 to 400Hz
Rated motor frequency.
(50Hz/60Hz)
● When operating a standard motor, generally set the rated frequency of the motor to Pr. 3 Base frequency.
When running the motor using commercial power supply-inverter switch-over operation, set Pr. 3 to the same
value as the power supply frequency.
● If the frequency given on the motor rating plate is "50Hz" only, always set to "50Hz". Leaving the base fre-
quency unchanged from "60Hz" may make the voltage too low and the torque insufficient. It may result in an
inverter trip due to overload.
Operation example
1
Screen at power-ON
The monitor display appears.
2
Changing the operation mode
Press to choose the PU operation mode. The [PU] indicator turns on.
3
Parameter setting mode
Press to choose the parameter setting mode.
4
Selecting the parameter number
Turn until (Pr. 3) is selected.
5
Reading settings
Press to read the present setting. " " (60.00Hz (initial value)) appears.
6
Changing the setting
Turn to change the setting to " " (50.00Hz).
7
Parameter settings
Press to finalize the setting.
The parameter number and setting flashes.
* Configure parameter settings in accordance with your environment.