4
23
F040.00
V/F Curve
Type
Function
Code
Name
Description
F04: V/F Control Group
Modi-
ability
4
0~5
0: Straight line
1: Multi-dots V/F curve, manually set V/F
curve through F04.03~F04.08
2: 1.3th power torque reduction V/F curve
3: 1.7th power torque reduction V/F curve
4: 2.0nd power torque reduction V/F curve
Curves 2~4 are suitable for water pumps
and users can choose them according to
load characteristics for best performance.
5: Custom V/F curve
Setting
Range
Default
Value
F04.01
Torque
Lifting
Voltage
1.0%
0.0~10.0
In order to increase the starting torque of the
p u m p , i n c r e a s e t h i s p a r a m e t e r t o
compensate for the low frequency output
voltage; The setting value is the percentage
of the motor rated voltage.
F04.02
Torque
Lifting
Cut-off
Frequency
Point
20.0%
0.0~50.0
The percentage of the motor rated
frequency.
After the frequency reaches this value, the
torque lifting is cancelled.
F04.03
V/F
Frequency
Point 1
0.00Hz
0.00~
F04.05
0.00 Hz ~ F04.05
F04.04
V/F
Voltage
Point 1
0.00%
0.00~
110.0
0.0% ~ 110.0% of pump motor rated
voltage
F04.05
00.00Hz
F0.03~
F04.07
F0.03~F04.07
V/F
Frequency
Point 2
F04.06
V/F
Voltage
Point 2
0.0% ~ 110.0% of pump motor rated
voltage
0.00%
0.00~
110.0
F04.07
V/F
Frequency
Point 3
F04.05 ~ F02.02 (pump motor rated
frequency)
F04.05~
F02.02
00.00Hz
F04.08
V/F
Voltage
Point 3
0.0% ~ 110.0% of pump motor voltage
00.0%
0.00~
110.0
