B1: Continuouspath Mode, Exact Stop, LookAhead
3.4 Dynamic adaptations
Basic Functions
196
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
The contour sampling factor is set with the machine data:
MD10682 $MN_CONTOUR_SAMPLING_FACTOR
The effective contour sampling time is calculated as follows:
T
s
= f * T
1
The default contour sampling factor is "1", i.e. the contour sampling time equals the interpolation cycle.
The contour sampling factor can be both greater or less than "1".
If a value less than "1" is set, monitoring of contour sampling precision is disabled.
The set sampling time may not be below the configured minimum contour sampling time:
MD10680 $MN_MIN_CONTOUR_SAMPLING_TIME
Programming
Depending on the setting in machine data MD20606 $MC_PREPDYN_SMOOTHING_ON, "Free-form surface
mode: Basic functions" can be switched on and off in the part program by changing the active dynamic response
mode.
Example:
By assigning the parameters MD20606 $MC_PREPDYN_SMOOTHING_ON[2-4] = 1 and MD20606
$MC_PREPDYN_SMOOTHING_ON[0-1] = 0, the function can be switched on via the commands
DYNROUGH
,
DYNSEMIFIN
, and
DYNFINISH
and switched off via the commands
DYNNORM
and
DYNPOS
.
See also
Rounding of tangential block transitions (G645) Rounding of tangential block transitions (G645) [Page 169]
Velocity-dependent jerk adaptation (axisspecific) Velocity-dependent jerk adaptation (axisspecific) [Page 241]
Free-form surface mode: Extension function Free-form surface mode: Extension function [Page 176]
where
:
T
s
= effective contour sampling time
T
1
= Interpolation cycle time
f
= Contour sampling factor (value from MD10682)
Note
MD10680 is specifically set for every controller model and cannot be changed.
