Operating Modes
Parameter manual
b maXX
BM5800
Document No.: 5.16029.03
Baumüller Nürnberg GmbH
540
3.8
3.8.2.14 Comparison of Motion Profiles for Positioning
1)
Impulse = Jump in speed = a
2)
Jerk = Jump in acceleration = da/dt
The following shows the profiles and the effect of the smoothing generator on the trape-
zoidal profile by means of an example.
Basic positioning data for the example:
n
Travel path = 5 Motor revolutions =
50000
hex
Inc
n
Positioning speed =
1000 Inc/ms
n
Positioning acceleration =
20 Inc/ms²
n
Positioning deceleration =
20 Inc/ms²
Time-Optimized Positioning (Trapezoidal Speed Profile)
Figure 141:
Time-optimized positioning
Trapezoidal profile
S-Curve profile
Speed profile
Trapezoidal-shaped
S-shaped
(quadratic)
Acceleration profile
Block-shaped
Trapezoidal-shaped
Impulse
1)
Shock-free
Shock-free
Jerk
2)
3 or 4 jerks
Jerk-free
Online change of positioning data
possible
Yes
Yes
Single Set Value mode possible
Yes
Yes
Set of Set Values mode possible
Yes
Yes
0
200
400
600
800
1000
1200
1
23
45
67
89 111 133 155 177
v
Sampling steps