B2: Acceleration
4.2 Functions
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
251
Substitute characteristic curve with curved path sections
In the case of curved path sections, normal and tangential acceleration are considered together. The path
velocity is reduced so that only up to 25 % of the speed-dependent acceleration capacity of the axes is required
for normal acceleration. The remaining 75 % of the acceleration capacity is set aside for the tangential
acceleration, i.e., deceleration/acceleration on the path.
Figure 4-11 Substitute path characteristic curve: Curved path
Block transitions with continuous-path mode
If continuous-path mode is active, non-tangential block transitions result in axial velocity jumps when the
programmed path velocity is used for traversing.
As a result, the path velocity is controlled in such a way that prevents any axial velocity proportion from
exceeding the creep velocity v
red
at the time of the block transition.
Deceleration ramp with continuous-path mode and LookAhead
In the case of consecutive part program blocks with short paths, an acceleration or deceleration operation may
be spread over several part program blocks.
In such a situation LookAhead also takes into account the parameterized speed-dependent acceleration
characteristic.
a
N
:
Normal acceleration
a
ers
:
Substitute characteristic curve constant acceleration
v
ers
:
Substitute characteristic curve velocity
r:
Path radius
U
Y
DPD[
DHUV
DUHG
$[LDOFKDUDFWHULVWLFDY
D1
YPD[
YHUV
YUHG
D
Y
Содержание SINUMERIK 828D Turning
Страница 34: ...Basic Functions 34 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 146: ...A3 Axis Monitoring Protection Zones 2 6 Data lists Basic Functions 146 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 328: ...F1 Travel to fixed stop 6 5 Data lists Basic Functions 328 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 816: ...K2 Axis Types Coordinate Systems Frames 10 9 Data lists Basic Functions 816 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 1198: ...P4 PLC for SINUMERIK 828D 14 6 Function interface Basic Functions 1198 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 1752: ...Appendix 20 2 Overview Basic Functions 1752 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...
Страница 1774: ...Glossary Basic Functions 1774 Function Manual 09 2011 6FC5397 0BP40 2BA0 ...