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

96
Learning Basic Features
Group
Code
Name
LCD Display
Parameter Setting
Setting Range
Unit
19
Start frequency
Start Freq
0.50
0.01–10.00
Hz
bA
07
V/F pattern
V/F Pattern
0
Linear
0–3
-
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).
4.13.2 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.