Mitsubishi Electric FR-A720-0.4K Instruction Manual page 68

(2) Energy saving control (Pr. 60)
Without complicated parameter settings, the inverter could automatically perform energy saving control.
This inverter is optimal for fan and pump applications.
Parameter
Name
Number
Energy saving control
60
selection *
* When parameter is read using the FR-PU04, a parameter name different from an actual parameter is displayed.
When "4" is set in Pr. 60, the inverter operates in the energy saving operation mode.
In the energy saving operation mode, the inverter automatically controls the output voltage to minimize the inverter
output voltage during a constant operation.
REMARKS
For applications a large load torque is applied to or machines repeat frequent acceleration/deceleration, an energy saving effect
is not expected.
CAUTION
When the energy saving mode is selected, deceleration time may be longer than the setting value. Since overvoltage alarm
tends to occur as compared to the constant torque load characteristics, set a longer deceleration time.
The energy saving operation mode is available only under V/F control. When the Advanced magnetic flux vector control, Real
sensorless vector control and vector control are selected, the energy saving mode is invalid.
Since output voltage is controlled in energy saving operation mode, output current may slightly increase.
Setting
Initial Value
Range
0
0
4
Before operation
Description
Normal operation mode
Energy saving operation mode
3
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