CHINT NVF2G-S Series User Manual

Universal constant torque V/F curve: Below the rated frequency, the output voltage and frequency change
linearly, suitable for general mechanical transmission applications such as large inertia fans, punching machines,
centrifuges, and water pumps
function
code
name
default
value
Predetermined area
Parameter Description
F4.02
Torque boost cut-off
frequency
5 0.00Hz
0.00Hz ~F0.07
F4.03
Multipoint V F Frequency
Point 3
0.00Hz
F 4.05~F2.04
F4.04
Multi-point V F voltage
point 3
0.0 %
(0.0 ~ 100.0 ) %
F4.05
Multipoint V F Frequency
Point 2
0.00Hz
F4.07 ~F4.03
F4.06
Multi-point V F voltage
point 2
0.0 %
(0.0 ~ 100.0 ) %
F4.07
Multi-point V F frequency
point 1
0.00Hz 0.00Hz ~ F4.05
F4.08
Multi-point V F voltage
point 1
0.0 %
(0.0 ~ 100.0 ) %
● Custom multi-point V/F curve: the frequency point setting range is 0.00Hz to the rated frequency of the
motor, the voltage point setting range is 0.0% to 100% corresponding to 0V to the motor rated voltage,
and the setting value of the multi-point V/F curve is usually based on The load characteristics of the
motor are set.
Figure 8-5-1 General constant torque linear V/F curve
Output voltage V
Output frequency F
Basic operating
frequency
Torque raises the
cut-off frequency
V lift
Vb
Output voltage V
Max output voltage
Based operation frequency
Output frequency f
V/F curve point 1
V/F curve point 2
V/F curve point 3
Figure 8 -5-2 Custom multi-point V/F curve
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NVF2G-S Series Inverter User's Guide

CHINT NVF2G-S Series Specifications

General

Brand	CHINT
Model	NVF2G-S Series
Category	Inverter
Language	English