Detailed description
2.3 Continuous -path mode
Basic logic functions: Continuouspath Mode, Exact Stop, LookAhead (B1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
27
Profile for limit velocity
The use of a velocity profile can be controlled during rounding using the hundreds digit in the
machine data:
MD20480 $MC_SMOOTHING_MODE (rounding behavior with G64x)
Hundred's place:
< 100:
A profile of the limit velocity is calculated within the rounding area, based on the
defined maximum values for acceleration and jerk on the participating axes or
path.
This can lead to an increase in the path velocity in the rounding area and
therefore to the acceleration of the participating axes.
≥100:
A profile of the limit velocity is not calculated for rounding blocks with
G641
/
G642
. A constant velocity limit is specified instead.
This prevents the participating axes being accelerated into the rounding area
during rounding with
G641
/
G642
. However, in certain cases, this setting can
cause the rounding blocks to be traversed too slowly, especially in large
rounding areas.
1xx:
No velocity profile for
G641
2xx:
No velocity profile for
G642
Note
See also:
MD28530 $MC_MM_PATH_VELO_SEGMENTS (number of memory elements for limiting
the path velocity)
2.3.4
Rounding with maximum possible dynamic response on each axis
How this type of rounding differs from existing types
Unlike existing rounding types, which are activated with G codes
G641
,
G642
and
G643
, in
this case, the maximum possible dynamic response on each axis takes priority.
Activation
This type of rounding is activated by G code
G644
. Further information needs to be
programmed and/or entered in the machine data, depending on the setting.
Note
G644 is not available with an active kinematic transformation. The system switches internally
to G642.
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 ...