Functions
2.1 Acceleration without jerk limitation (BRISK/BRISKA) (channel-/axis-specific)
Basic logic functions: Acceleration (B2)
10
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Acceleration profile
W
W
W
DPD[
D
DPD[
YPD[
W
W
Y
Figure 2-1
Velocity and acceleration schematic for stepped acceleration profile
a
max
:
Maximum acceleration value
v
max
:
Maximum velocity value
t:
Time
The following features of the acceleration profile can be identified from the figure above:
•
Time: t
0
Sudden acceleration from 0 to +a
max
•
Interval: t
0
- t
1
Constant acceleration with +a
max
; linear increase in velocity
•
Time: t
1
Sudden acceleration from 2 * a
max
with immediate switchover from acceleration to braking
Note
The sudden acceleration can normally be avoided by specifying a constant velocity time
(see Section: "Sudden acceleration with constant velocity phase").
•
Interval: t
1
- t
2
Constant acceleration with -a
max
; linear decrease in velocity
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...