Detailed description
2.3 Continuous -path mode
Basic logic functions: Continuouspath Mode, Exact Stop, LookAhead (B1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
31
MD20462
Whether the programmed feedrate should also be taken into consideration during the
smoothing is determined by the machine data:
MD20462 $MC_LOOKAH_SMOOTH_WITH_FEED (path smoothing with programmed
feedrate)
If the MD is set to 1 (default), the smoothing factor is observed with particular precision if the
override is set to 100%.
MD32440
The following machine data contains a smoothing frequency for LookAhead:
MD32440 $MA_LOOKAH_FREQUNECY (smoothing frequency for LookAhead)
Acceleration and braking processes running at a frequency higher than parameterized in this
MD are smoothed or reduced in their dynamic response depending on their parameterization
in the machine data:
MD20460 $MC_LOOKAH_SMOOTH_FACTOR (smoothing factor for LookAhead)
MD20465 $MC_ADAPT_PATH_DYNAMIC (adaptation of the dynamic path response)
The minimum value for all axes involved in the path is always calculated.
If vibration is excited in the mechanical system of this axis and if the corresponding
frequency is known, this MD should be set to a value smaller than this frequency.
The required resonance frequencies, for example, can be calculated using the built-in
measuring functions.
The minimum value for this MD32440 is calculated as
fPath on the basis of the axis involved
in the path.
For the smoothing, only those acceleration processes in which the start and end velocity of
this motion are reached within the time below are taken into consideration:
t = t2-t1 = 2/
fPath
is reached again.
Note
The smoothing of the path velocity does not lead to contour errors. Variations in axis velocity
due to curvatures in the contour at constant path velocity may continue to occur and are not
reduced at this point.
Variations in path velocity due to the input of a new feedrate are not changed either. This
remains the responsibility of the programmer of the subprogram.
Содержание SINUMERIK 840D sl
Страница 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 286: ...Table of contents Basic logic functions Diagnostic tools D1 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 328: ...Constraints Basic logic functions Diagnostic tools D1 46 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 330: ...Examples Basic logic functions Diagnostic tools D1 48 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 340: ...Table of contents Basic logic functions Travel to fixed stop F1 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 342: ...Brief Description Basic logic functions Travel to fixed stop F1 6 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 382: ...Supplementary conditions Basic logic functions Travel to fixed stop F1 46 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Страница 790: ...Table of contents Basic logic functions Axes coordinate systems frames K2 6 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 946: ...Table of contents Basic logic functions Emergency Stop N2 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 948: ...Brief Description Basic logic functions Emergency Stop N2 6 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 956: ...Restrictions Basic logic functions Emergency Stop N2 14 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 958: ...Examples Basic logic functions Emergency Stop N2 16 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 966: ...Table of contents Basic logic functions Transverse axes P1 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 978: ...Supplementary conditions Basic logic functions Transverse axes P1 16 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 980: ...Examples Basic logic functions Transverse axes P1 18 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 982: ...Data lists 5 1 Machine data Basic logic functions Transverse axes P1 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 984: ...Index Basic logic functions Transverse axes P1 22 Function Manual 11 2006 6FC5397 0BP10 2BA0 Work offset external 13 ...
Страница 990: ...Table of contents Basic logic functions PLC Basic program powerline P3 pl 6 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1268: ...Supplementary conditions Basic logic functions PLC Basic program powerline P3 pl 284 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1270: ...Examples Basic logic functions PLC Basic program powerline P3 pl 286 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1280: ...Table of contents Basic logic functions PLC basic program solution line P3 sl 6 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1542: ...Examples Basic logic functions PLC basic program solution line P3 sl 268 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1604: ...Examples Basic logic functions Reference Point Approach R1 58 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1616: ...Brief Description Basic logic functions Spindles S1 6 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1703: ...Basic logic functions Spindles S1 Function Manual 11 2006 6FC5397 0BP10 2BA0 93 Constraints 3 No supplementary conditions apply ...
Страница 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1776: ...Detailed description 2 3 Feedrate control Basic logic functions Feeds V1 60 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1786: ...Data lists 5 3 Signals Basic logic functions Feeds V1 70 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1794: ...Table of contents Basic logic functions Tool Offset W1 6 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1798: ...Short description Basic logic functions Tool Offset W1 10 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1992: ...Data lists 5 3 Signals Basic logic functions Tool Offset W1 204 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 2002: ...Brief description Basic logic functions NC PLC interface signals Z1 6 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Страница 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...