Siemens SINUMERIK 808D ADVANCED Parameter Manual page 320

NC setting data
If the position in question contains the value 2, the approach or retraction movement
is only performed if at least one geometry axis is programmed in the activation/
deactivation block. To obtain the same results as the above example with this setting,
the program must be altered as follows:
N100 x10 y0
N110 G41 x10
N120 x20
If axis information x10 is missing in block N110, activation of TRC is delayed by one
block, i.e. the activation block would now be N120.
If the position in question contains a 3, retraction is not performed in a deactivation
block (G40) if only the geometry axis perpendicular to the compensation plane is
programmed. In this case, the motion perpendicular to the compensation plane is
performed first. This is followed by the retraction motion in the compensation plane.
In this case, the block after G40 must contain motion information in the compensation
plane. The approach motions for values 2 and 3 are identical.
If the position in question contains a value other than 1, 2 or 3, i.e. in particular
the value 0, an approach or retraction movement is not performed in a block that does
not contain any traversing information.
About the term "Tools with tool point direction":
These are tools with tool numbers between 400 and 599 (turning and grinding tools),
whose tool point direction has a value between 1 and 8. Turning and grinding tools with
tool point direction 0 or 9 or other undefined values are treated like milling tools.
Note:
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.
320
FALSE, FALSE, 0
FALSE, FALSE,
FALSE, FALSE,
FALSE, FALSE...
- -
BOOLEAN Immediately
- 3/3
Parameter Manual, 08/2015, 6FC5397-8EP40-0BA1
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Parameter Manual