Basic parameter group 01
PARAMETER DESCRIPTION 104
Acceleration/deceleration curve selection
Linear acceleration /deceleration curve (01-05(P.29)=“0”)
An acceleration slope is formed by the combination of 01-06(P.7) and 01-09(P.20). A deceleration slope is formed
by the combination of 01-07(P.8) and 01-09(P.20).
When the target frequency varies, it increases according to the “acceleration slope” or decreases according to the
“deceleration slope” linearly. See the figure below:
O
u
tp
u
t
fr
e
q
u
e
n
c
y
Time
01-06(P.7)
01-07(P.8)
A
c
c
e
le
ra
ti
o
n
s
lo
p
e
D
e
c
e
le
ra
tio
n
s
lo
p
e
01-09(P.20)
S shape acceleration /deceleration curve 1(01-05(P.29)=“1”)
An acceleration slope is formed by the combination of 01-06(P.7) and 01-03(P.3). A deceleration slope is formed
by the combination of 01-07(P.8) and 01-03(P.3).
The acceleration / deceleration curve has an S-shape change according to the “acceleration / deceleration slope”.
The S-shape equation between 0 and 01-03 (P.3) is:
03(P.3)
-
01
)]
06(P.7)
-
01
90
cos(
1
[
t
f
The S-shape equation
above 01-03 (P.3) is:
06(P.7)
-
01
9
5
03(P.3)
-
01
06(P.7)
-
01
9
4
2
2
f
t
t = time; f = output frequency
A
cc
el
er
at
io
n
sl
op
e
O
u
tp
u
t
fr
e
q
u
e
n
c
y
01-06(P.7)
01-03(P.3)
Time
S shape acceleration /deceleration curve 2(01-05(P.29)="2")
An acceleration slope is formed by the combination of 01-06(P.7) and 01-09(P.20). A deceleration slope is
formed by the combination of 01-07(P.8) and 01-09(P.20).
When the target frequency varies, the acceleration increases S-shape according to the “acceleration slope”. The
deceleration decreases S-shape according to the “deceleration slope”. As shown in the figure below, when
frequency is adjusted from f0 to f2, it accelerates S-shape once, and the time is 01-06(P.7) × (f2-f0) / 01-09(P.20).
Then if the frequency is adjusted from f2 to f3, it accelerates S-shape the second time, and the time is 01-06(P.7)
× (f3-f2) / 01-09(P.20).
Setting
