Siemens SINUMERIK 840D sl Operating Manual page 442

Programming technological functions (cycles)
10.3 Contour milling
Parameter Description
Radius compen‐ ● Left (machining to the left of the contour)
sation
● Right (machining to the right of the contour)
● off
A programmed contour can also be machined on the center-point path. In this case,
approaching and retraction is only possible along a straight line or vertical. Vertical ap‐
proach/retraction can be used for closed contours, for example.
Z0 Reference point Z (abs or inc)
Z1 Final depth (abs) or final depth referred to Z0 (inc) - (only for ∇ and ∇∇∇)
DZ Maximum depth infeed - (only for ∇ and ∇∇∇)
UZ Depth finishing allowance - (only for ∇)
FS Chamfer width for chamfering (inc) - (for chamfering only)
ZFS Insertion depth of tool tip (abs or inc) - (for chamfering only)
UXY Finishing allowance, plane - (only for ∇ and G code, not for radius compensation off)
Approach Planar approach mode:
● Straight line:
Slope in space
● Quadrant:
Part of a spiral (only with path milling left and right of the contour)
● Semi-circle:
Part of a spiral (only with path milling left and right of the contour)
● Perpendicular:
Perpendicular to the path (only with path milling on the center-point path)
Approach strategy ● Axis by axis
● Spatial (only for "quadrant, semi-circle or straight line" approach)
R1 Approach radius - (only for "quadrant or semi-circle" approach)
L1 Approach distance - (only for "straight line" approach)
Retraction Planar retraction mode:
● Straight line
● Quadrant:
Part of a spiral (only with path milling left and right of the contour)
● Semi-circle:
Part of a spiral (only with path milling left and right of the contour)
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Unit
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Operating Manual, 05/2017, A5E40868956
Milling