When The Rated Motor Frequency Is 50Hz (Pr. 3)<V/F><S Mfvc - Mitsubishi Electric FR-F720P-0.75K Instruction Manual

4.3 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". If it remains at "60Hz", the voltage may become too low and torque shortage occurs, resulting in an overload
trip. It may result in an inverter trip (E.OC ) due to overload.
Parameter
Name
Number
3 Base frequency
Changing example Change Pr. 3 Base frequency to 50Hz according to the motor rated frequency.
1.
Screen at power-ON
The monitor display appears.
2.
Press
mode.
3.
Press
setting mode.
4.
Turn
appears.
5.
Press
value. (60Hz)
6.
Turn
value to "
7.
Press
Initial Value
60Hz
Operation
to choose the PU operation
to choose the parameter
until Pr. 3 Base frequency
to show the present set
to change the set
". (50Hz)
to set.
Flicker
By turning , you can read another parameter.
·
Press to show the setting again.
·
Press twice to show the next parameter.
·
When the rated motor frequency is 50Hz
Setting Range
Set the frequency when the motor
0 to 400Hz
rated torque is generated.
Display
PU indicator is lit.
The parameter
number
read previously
appears.
Parameter setting complete!!
···
(Pr. 3)<V/F><S MFVC>
S S S
V/F V/F V/F MFVC MFVC MFVC
< V / F > < S M F V C >
Description
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