n096 : Energy Saving Selection (Energy Save Sel)
To enable energy saving control, n096 must be set to "Enabled" (" 1 ").
Since the parameters used in the energy saving control mode have been preset to the
optimum values, it is not necessary to adjust them under normal operation. If your motor
characteristics differ greatly from those of a standard motor, refer to the following
description to change the parameters.
A. Energy Saving Control Mode
n097 : Energy Saving Gain K2 Factory setting: See Table A3-1
(Energy Save Gain)
Range: 0.00 to 655.0
The drive uses this gain when running in the energy saving control mode to calculate
the voltage at which motor efficiency will be greatest, and sets it as the output
voltage reference. This value is preset to a typical standard motor value. As energy
saving gain increases, output voltage also increases.
n098 : Energy Saving Voltage Lower Limit Factory setting: 75 %
at 60Hz (EngSavVllmt@60Hz)
Range: 0 to 120 %
n099 : Energy Saving Voltage Lower Limit Factory setting: 12 %
at 6Hz (EngSavVllmt@6Hz)
Range: 0 to 25 %
Sets the output voltage lower limit. If the voltage reference value calculated in the
energy saving mode is below the specified lower limit, this lower limit value is used as
the voltage reference value. The lower limit value is set to prevent stalling at light
loads. Set voltage limits at 6Hz and 60Hz; a value obtained by linear interpolation
should be set to any limit values other than at 6Hz or 60Hz. Setting is made as a
percentage of motor rated voltage.
5-11
5.9 ENERGY SAVING CONTROL
OUTPUT 255V *
VOLTAGE
n098
Lower Limit
n099
6 Hz 60 Hz
OUTPUT FREQUENCY
* For a 460V class drive, this limit is 510V
* For a 575V class drive, this limit is 733.1V
LED Setting LCD Setting
0* Disabled*
1 Enabled
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