43
DRIVE THE MOTOR
3
Before operation
3.3.3 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.
Parameter
Number
Name Initial Value Setting Range Description
3 Base frequency
60Hz 0 to 400Hz Set the rated motor frequency.
Changing
example
Change Pr. 3 Base frequency to 50Hz according to the motor rated frequency.
Operation Display
1.
Screen at powering ON
The monitor display appears.
2. Press to choose the PU operation mode.
PU indication is lit.
3. Press to choose the parameter setting
mode.
PRM indication is lit.
(The parameter number read previously
appears.)
4. Turn until " " (Pr. 3) appears.
5. Press to read the currently set value.
" " (60.00Hz (initial value)) appears.
6. Turn to change the set value to
" " (50.00Hz).
7. Press to set.
Flicker ··· Parameter setting complete!!
Turn to read another parameter.
Press to show the setting again.
Press twice to show the next parameter.
REMARKS
Pr. 3 is invalid under General-purpose magnetic flux vector control and Pr. 84 Rated motor frequency is valid.
V/F
V/F
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