Vaidnor VDF650 Series, Руководство пользователя, Страница: 181 / 296

Description of Function Codes
VDF650 User Manual
-
180
-
When the set frequency is higher than the rated frequency
,
the acceleration
/
deceleration time is
:
2
5
9
b
f
T
f
t =
4
( ×
(
) +
9
)
×
In the formula
,
f is the set frequency
,
b
f
is the rated motor frequency and
T
is the
acceleration time from 0 Hz to
b
f .
Function Code Parameter Name Setting Range Default
P6
-
08
Time proportion of S
-
curve
start segment
0
.
0
%
to
(
100
.
0
% –
P6
-
09
)
30
.
0
%
P6
-
09
Time proportion of S
-
curve
end segment
0
.
0
%
to
(
100
.
0
% –
P6
-
08
)
30
.
0
%
These two parameters respectively defne the time proportions of the start segment and the
end segment of S
-
curve acceleration
/
deceleration
.
They must satisfy the requirement
:
P6
-
08
+
P6
-
09
≤
100
.
0
%.
In Figure 6
-
12
,
t1 is the time defned in P6
-
08
,
within which the slope of the output frequency
change increases gradually
.
t2 is the time defned in P6
-
09
,
within which the slope of the
output frequency change gradually decreases to 0
.
Within the time between t1 and t2
,
the slope of the output frequency change remains unchanged
,
that is
,
linear acceleration
/
deceleration
.
Figure 6
-
12 S
-
curve acceleration
/
deceleration A
Output
frequency
(
Hz
)
Set frequency
(
f
)
Time
(
t
)
t1 t2 t2 t1
Figure 6
-
13 S
-
curve acceleration
/
deceleration B
Output
frequency
(
Hz
)
Set frequency
(
f
)
Rated frequency
(
fb
)
T
Time
(
t
)