7. Programming Features
175
* Depends on Inverter capacity.
Energy-saving Voltage Lower/Upper Limits (n141, n142,
n159, n160)
Set the upper and lower limits of the output voltage. When the value
calculated in the energy-saving control mode is larger than the upper
limit (or smaller than the lower limit), the limit value is output as the
voltage reference. The upper limit is set to prevent over-excitation, and
the lower limit is set to prevent stalls when the load is light. The voltage
limit is set for machines using 6 or 60 Hz. For any value other than 6 or
60 Hz, set the voltage limit using linear interpolation. The constants are
set in % for 200-V/400-V Inverters.
* Doubled for the 400 V Class Inverters.
Constant
No.
Name
Unit
Setting Range
Factory
Setting
n140
Energy-saving Control
Coefficient K2
-
0.0 to 6550
*
n158
Motor Code
-
0 to 70
*
Constant No.
Name
Unit
Setting Range
Factory
Setting
n141
Energy-saving Control Voltage
Lower Limit at 60 Hz
%
0 to 120
50
n142
Energy-saving Control Voltage
Lower Limit at 6 Hz
%
0 to 25
12
n159
Upper Voltage Limit For Energy-
saving Control at 60 Hz
%
0 to 120
120
n160
Upper Voltage Limit For Energy-
saving Control at 6 Hz
%
0 to 25
16
Voltage limit
Upper limit
Lower limit
Output frequency
250 V*
6 Hz
60 Hz
