NVF5 Series User Manual Chapter 6 Parameter Function Description
Output Vol
. V
Output freq
. f
Max.
Output Vol
.
Normal
running freq.
V3
V2
V1
f1
f2
f3
0
（
f1,V1
）
multi-point VF
curve point 1
（
f2,V2
）
multi-point VF
curve point 2
（
f3,V3
）
multi-point VF
curve point 3
Figure 6-5-2 Custom Multi-Point V/F Curve
● Reduced Torque V/F Curve
：
Under the rated frequency, the relationship between the
output voltage and the output frequency varies according to the 2nd power, 1.7th power
and 1.2th power curves
，
this V/F curve is suitable for the load of fans and pumps.
Output Vol.
V
Output freq. f
Max.
Output Vol.
Normal
Running Freq.
Linear
Type
1.2th power V/F curve
1.7th power V/F curve
2.0th power V/F curve
Square
Type
Figure 6-5-3 Reduced Torque V/F Curve
6.5.2 V/F Seperation Curve Setting
Code
Name
Default
Setting Range
Description
F4.12
VF Separation Output
Voltage Channel
0
0
～
3
0
：
Keypad
Setting
1
：
AI1
2
：
AI2
3
：
Reserve
Note
：
100%
Corresponding
Motor Rated
- 66 -
