6-6
Deceleration
The Inverter decelerates normally and is not in energy-saving control.
Power
consumption
Load rate: 100%
Load rate: 50%
Motor voltage
As shown in the graph, the voltage to
operate the motor most efficiently varies with
the motor load condition. The Inverter in
energy-saving control adjusts the output
voltage by using the ideal calculated value
so that the actual output power will be
minimum.
6-2-2 Performing Energy-saving Settings
n139
Energy-saving Control Selection Register 018B Hex Changes during
operation
No
Setting
range
0, 1 Unit of
setting
1 Default setting 0
Set Values
Value Description
0 Energy-saving control disabled
1 Energy-saving control enabled
Note 1. Set n139 to 1 to enable energy-saving control.
Note 2. Energy-saving control is enabled within a frequency range from 15 to 120 Hz and disabled if
the frequency exceeds 120 Hz.
n158
Motor Code Register 019E Hex Changes during
operation
No
Setting
range
0 to 70 Unit of
setting
1 Default setting See note
Note The default setting varies with the capacity of the Inverter model.
Set Values
• The motor code is used for automatically setting the energy-saving constant in n140.
• By setting the motor code, the value in n140 (energy-saving control coefficient K2) will change auto-
matically. To adjust energy-saving control coefficient K2, set the motor code in advance.
• Select the motor code from the following table based on the power supply voltage of the Inverter and
the capacity of the motor.
Advanced Operation Chapter 6
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