User`s manual
100 • Vacon apfiff09 marine
Tel. +358
6
P2.3.5 Acceleration/Deceleration ramp 1 shape ID500
The start and end of acceleration and deceleration ramps can be smoothed with these
parameters. Setting value 0 gives a linear ramp shape which causes acceleration and
deceleration to act immediately to the changes in the reference signal. Setting value
1 0 % for this parameter produces an S-shaped acceleration/deceleration.
Used to reduce mechanical erosion and current spikes when reference is changed.
Figure 7-2. 10 % S ramp with 3 s ramp time compared to without S ramp
Figure 7-3. 10 % S ramp with 3 s ramp time when reference set to zero at 25 Hz
P2.3.6 Acceleration time 2 ID502
P2.3.7 Deceleration time 2 ID503
P2.3.8 Acceleration/Deceleration ramp 2 shape ID501
These ramp times and ramp shapes are used when the second ramp time is activated by
digital in
0
10
20
30
40
50
60
00,591,181,772,362,953,544,134,725,315,96,497,087,678,268,859,44
0 % S
10 % S
0
5
10
15
20
25
30
35
40
0,00
0,38
0,76
1,14
1,52
1,90
2,28
2,66
3,04
3,42
3,80
4,18
4,56
4,94
5,32
5,70
6,08
10 % S
0 % S