Mitsubishi Electronics FR-A701 ユーザーズマニュアル
58
4.3.3
When the rated motor frequency is 50Hz (Pr. 3)
First, check the motor rating plate. If a frequency given on the rating plate is "50Hz" only, always set Pr. 3 Base frequency
to "50Hz". Leaving the base frequency unchanged from "60Hz" may make the voltage low and the torque insufficient. It
may result in an inverter trip (E.OC ) due to overload.
to "50Hz". Leaving the base frequency unchanged from "60Hz" may make the voltage low and the torque insufficient. It
may result in an inverter trip (E.OC ) due to overload.
Parameter
Number
Name
Initial Value
Setting Range
Description
3
Base frequency
60Hz
0 to 400Hz
Set the frequency when the motor
rated torque is generated.
rated torque is generated.
Changing example Change Pr. 3 Base frequency to 50Hz according to the motor rated frequency.
REMARKS
· Pr. 3 is invalid and Pr.84 Rated motor frequency is valid under Advanced magnetic flux vector control, Real sensorless vector
control, and vector control.
V/F
V/F
V/F
3.
Press to choose parameter
setting mode.
Flicker
···
Parameter setting complete!!
7.
Press to set.
·
By turning , you can read another parameter.
·
Press to show the setting again.
·
Press twice to show the next parameter.
4.
Turn until
Pr. 3 Base frequency
appears.
1.
Screen at power-ON
The monitor display appears.
2.
Press to choose the PU operation
mode.
PU indicator is lit.
Display
Operation
The parameter
number
read previously
appears.
number
read previously
appears.
5.
Press to show the currently set
value. (60Hz)
6.
Turn to change it to
the set value " ". (50Hz)