Siemens SINUMERIK 840D sl Operating Manual page 520

Programming technology functions (cycles)
10.5 Contour milling
Parameter Description
CP Positioning angle for machining area
- (only for ShopTurn, machining surface, face Y)
Angle CP does not have any effect on the machining position in relation to the workpiece.
It is only used to position the workpiece with the rotary axis C in such a way that machining
is possible on the machine.
C0 Positioning angle for machining surface
- (only for ShopTurn, machining surface, peripheral surface Y)
Z0 Reference point Z
Z1 Final drilling depth (abs) or final drilling depth referred to Z0 or X0 (inc)
DZ Maximum depth infeed - (only for machining ∇ and ∇∇∇)
UZ Depth finishing allowance - (only for machining ∇)
UXY Finishing allowance, plane
Approach Planar approach mode:
● 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)
● Straight line:
Slope in space
● Perpendicular:
Perpendicular to the path (only with path milling on the center-point path)
Approach strategy ● axis-by-axis - (only for "quadrant, semi-circle or straight line" approach)
● 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)
FZ Depth infeed rate
(only for G code)
FZ Depth infeed rate
(only for Shop‐
Turn)
Retraction Planar retraction mode:
● 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)
● Straight line:
520
Unit
Degrees
Degrees
mm
mm
mm
mm
mm
mm
mm
*
mm/min
mm/tooth
Operating Manual, 05/2017, A5E40868721
Turning