Siemens SINUMERIK 840D sl Operating Manual page 480

Programming technology functions (cycles)
10.4 Milling
Parameter Description
Circular pattern ● Full circle
● Pitch circle
The positions refer to the reference point:
X0 Reference point X
Y0 Reference point Y
Z0 Reference point Z
(only for G code)
Face C: The positions refer to the reference point:
X0 or L0 Reference point X or reference point length polar
Y0 or C0 Reference point Y or reference point angle polar
Z0 Reference point Z
(only for ShopTurn)
Face Y: The positions refer to the reference point:
CP Positioning angle for machining area
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 ma‐
chining is possible on the machine.
X0 or L0 Reference point X or reference point length polar
Y0 or C0 Reference point Y or reference point angle polar
Z0 Reference point Z
(only for ShopTurn)
Peripheral surface C: The positions refer to the reference point:
Y0 or C0 Reference point Y or reference point angle polar
Z0 Reference point Z
X0 Cylinder diameter ∅
(only for ShopTurn)
Peripheral surface Y: The positions refer to the reference point:
C0 Positioning angle for machining surface
Y0 Reference point Y
Z0 Reference point Z
X0 Reference point X
(only for ShopTurn)
N Number of slots
R Radius of circumferential slot
α1 Opening angle of the slot
α2 Advance angle - (for pitch circle only)
W Slot width
Z1 Slot depth (abs) or depth relative to Z0 or X0 (inc) - (only for ∇ and ∇∇∇)
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The circumferential slots are positioned around a full circle. The distance from one
circumferential slot to the next circumferential slot is always the same and is
calculated by the control.
The circumferential slots are positioned around a pitch circle. The distance from one
circumferential slot to the next circumferential slot can be defined using angle α2.
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Operating Manual, 05/2017, A5E40868721
Turning