LSIS LSLV-S100 - Square Reduction V;F Pattern Operation

133
Learning Basic Features
Linear V/F Pattern Setting Details
Code
Description
dr.18 Base Freq
Sets the base frequency. A base frequency is the inverter’s output frequency
when running at its rated voltage. Refer to the motor’s rating plate to set this
parameter value.
dr.19 Start Freq
Sets the start frequency. A start frequency is a frequency at which the
inverter starts voltage output. The inverter does not produce output voltage
while the frequency reference is lower than the set frequency. However, if a
deceleration stop is made while operating above the start frequency, output
voltage will continue until the operation frequency reaches a full-stop (0Hz).
Square Reduction V/F pattern Operation
Square reduction V/F pattern is ideal for loads such as fans and pumps. It provides non-
linear acceleration and deceleration patterns to sustain torque throughout the whole
frequency range.
Group
Code
Name
LCD Display
Parameter Setting
Setting Range
Unit
bA
07
V/F pattern
V/F Pattern
1
Square
0–3
-
3
Square2
Square Reduction V/F pattern Operation - Setting Details
Code
Description
bA.07 V/F Pattern
Sets the parameter value to 1(Square) or 3(Square2) according to the
load’s start characteristics.
Setting
Function
1
Square
The inverter produces output voltage proportional to
1.5 square of the operation frequency.
3
Square2
The inverter produces output voltage proportional to
2 square of the operation frequency. This setup is
ideal for variable torque loads such as fans or
pumps.