CHINT NVF2G-S Series - Page 47

function code
name
default value
Predetermined area
Parameter Description
F5.23
A 1 i filter
0.05 s
( 0.00~10.00 )s
F5.24
A 2 I filtering
0.05 s
( 0.00~10.00 )s
The setting of the curve is actually to set the relationship between the analog input voltage (or analog input
current) and the set frequency it represents . When AI is used as frequency setting, 100.0% of the corresponding
setting of voltage or current input refers to the relative (maximum output frequency F0.07) percentage. The 2-
point curve takes the AI1 curve as an example, and the detailed parameters and descriptions are as follows (the
method of the AI2 curve is the same):
function
code
name
default
value
Predetermined area
Parameter Description
100.0 % is the percentage
relative to the maximum
frequency F 0.07
F5.32
A 2 curve minimum given
corresponding setting
i
0.0%
( -100.0 ~ +100.0 )%
F5.33
AI2 curve maximum setting
10 . 00V
F5.31~+11.00V
F5.34
Corresponding setting of AI2
curve maximum given
100.00%
( -100.0 ~ +100.0 )%
Setfrequency%
Max set value
related value
Min set value
related value
Min set point Max set point
Set value V
Figure 8-2-1 AI curve 1 setting
● AI curve filter selection:
The larger the input filter time of input terminal AI, the stronger the anti-interference ability, but the slower
the adjustment response; the smaller the filter time, the faster the adjustment response, but the weaker anti-
interference ability.
8.2.4 Multi-segment command setting main frequency
NVF2G-S can set up to 15 operating frequencies, which can be selected through the arrangement and
combination of 4 X terminals. can also be less than
The 4 X terminals are used for multi-stage frequency reference, and the missing setting bits are calculated
according to state 0.
When the command is a multi-segment command, the X terminal function selection should be set to the
function value of 24~27, that is, the multi-segment frequency command input terminal is specified, and the
required multi-segment frequency is set through the multi-segment frequency table of the FA group. The
parameters are as follows:
function code
name
default value
Predetermined area
Parameter Description
F5.01
X1 terminal function
1
0~ 63
F5.02
X2 terminal function
2
F5.03
X3 terminal function
9
F5.04
X4 terminal function
12
F5.05
X5 terminal function
0
F5.06
X6 terminal function
0
24: Multi-segment
command terminal 1
25: Multi-segment
command terminal 2
26: multi-segment
command terminal 3
27: multi-segment
command terminal 4
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NVF2G-S Series Inverter User's Guide