LSIS iG5H Series, Manual

Page: 135 / 225

Advanced functions
122
8.18 Energy-saving operation
Group Code Parameter Name Setting Range Default Unit
Function
group 1
F40 [Energy-saving operation] -
0 - 30 0 %
Set the amount of output voltage to be reduced in F40.

Set as the percent of Max output voltage.

For fan or pump applications, energy consumption can be dramatically reduced by

decreasing the output voltage when light or no load is connected.
8.19 Speed search
Group Code Parameter Name Setting Range Default Unit
Function
group 2
H22 [Speed search select] -
0 - 15 0
H23 [Current level] - 80 - 200 100 %
H24 [Speed search P gain] -
0 - 9999
100
H25 [Speed search I gain] - 200
I/O group
I54 [Multi-function relay1 select] 15
0 - 27
12
I55 [Multi-function relay2 select] 15 17
This is used to prevent possible fault from occurring if the inverter outputs the voltage

during operation after the load is removed.
The inverter estimates the motor rpm based on output current. Therefore, detecting

exact speed is difficult.
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