Instruction manual

102
• Energy-saving voltage lower / upper limit (n141, n142, n159, n160)
Sets 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 value is output as a voltage
reference value. The upper limit is set to prevent over-excitation, and
the lower limit is set to prevent stalls when the load is light. The volt-
age limit is set for machines using 6Hz/60 Hz. For any voltage other
than 6Hz/60Hz, set the (value of the) voltage limit according to linear
interpolation. The constants are set in % for 200V/400V inverters.
Constant
No.
n141
Name
Energy-saving control voltage
lower limit (At 60 Hz)
Unit
%
Setting
Range
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
Initial
Setting
*Doubled for the 400V class inverters.
Voltage limit
Upper limit
Lower limit
Output frequency