Siemens SINUMERIK 828D Programming Manual page 318

Tool radius compensation
10.4 Smooth approach and retraction
● Programming during retraction
318
– For an SAR block without programmed geometry axis, the contour ends in P
position in the axes that form the machining plane are obtained from the retraction
contour. The axis component perpendicular to this is defined by DISCL. If DISCL=0,
movement runs fully in the plane.
– If in the SAR block only the axis perpendicular to the machining plane is programmed,
the contour will end at P
above. If the SAR block is also the TRC disable block, an additional path from P
is inserted such that no motion results at the end of the contour when disabling the
TRC.
– If only one axis on the machining plane is programmed, the missing second axis is
modally added from its last position in the previous block.
– For an SAR block without programmed geometry axis, the contour ends in P
position in the axes that form the machining plane are obtained from the retraction
contour. The axis component perpendicular to this is defined by DISCL. If DISCL=0,
movement runs fully in the plane.
– If in the SAR block only the axis perpendicular to the machining plane is programmed,
the contour will end at P
above. If the SAR block is also the TRC disable block, an additional path from P
is inserted such that no motion results at the end of the contour when disabling the
TRC.
– If only one axis on the machining plane is programmed, the missing second axis is
modally added from its last position in the previous block.
. The positions of the remaining axes will result, as described
1
. The positions of the remaining axes will result, as described
1
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
. The
2
to P
1 0
. The
2
to P
1 0
Fundamentals