Siemens SINUMERIK 808D Parameter Manual page 341

If the value of this setting data is changed within a program, we recommend programming
a preprocessing stop (stopre) before the description to avoid the new value being used
in program sections before that point. The opposite case is not serious, i.e. if the
setting data is written, subsequent NC blocks will definitely access the new value.
42496 CUTCOM_CLSD_CONT
- Tool radius compensation behavior with closed contour
-
- -
Description:
FALSE:
CASE A: If two intersections arise on correction of the inner side with an (almost)
closed contour consisting of two successive circle blocks or a circle and a linear
block, by default the intersection is chosen that is located on the first partial
contour nearer to the beginning of the block.
A contour is considered (almost) closed if the distance between the starting point of
the first block and the end point of the second block is less than 10% of the active
compensation radius, but not greater than 1000 path increments (corresponds to 1mm
with 3 decimal places).
CASE B: If on correction of the inner side and a block transition between a straight
line and a circle with an angle of aperture of more than approx. 315 degrees, the
offset curve of the straight line intersects the offset curve of the circle at two
points, by default the point of intersection is chosen that is located on the first
partial contour nearer to the beginning of the block.
TRUE:
CASE A: In the same situation as described above, the point of intersection is chosen
that is located on the first partial contour nearer to the block end.
CASE B: In the same situation as described above, the point of intersection is chosen
that is located on the first partial contour nearer to the block end, but only if the
absolute value of the contour violation caused by this is less than the effective
contour tolerance. For the effective contour tolerance, see the description "Contour/
orientation tolerance" in FB1. The currently effective tolerance can be read with
$AC_CTOL. If a tolerance of zero is programmed in this way, a permanently assigned
tolerance of 0.002mm applies.
The tolerance value is applied that is valid for activation of the tool radius
correction with G41 or G42.
42500 SD_MAX_PATH_ACCEL
m/s² Maximum path acceleration
-
808d-me42 -
808d-me62 -
808d-te42 -
Parameter Manual
List Manual, 01/2017
TRUE, TRUE, TRUE, 0
TRUE, TRUE, TRUE,
TRUE, TRUE...
10000., 10000., 1.0e-6
10000., 10000.,
10000., 10000.,
10000., 10000....
10000., 10000., 1.0e-6
10000., 10000.,
10000., 10000.,
10000., 10000....
10000., 10000., 1.0e-6
10000., 10000.,
10000., 10000.,
10000., 10000....
- -
BOOLEAN Immediately
- 3/3
- B2
DOUBLE Immediately
- 1/1
- 1/1
- 1/1
NC setting data
U
M
M
M
341