Siemens SINUMERIK 840D sl Operating Manual page 393

Parameter Description
Peripheral surface Y: The positions refer to the reference point:
C0 Positioning angle for machining surface – (only for single position)
Y0 Reference point Y – (only for single position)
Z0 Reference point Z – (only for single position)
X0 Reference point X – (only for single position)
(only for
ShopTurn)
W Pocket width
L Pocket length
R Corner radius
α0 Angle of rotation
Z1 Pocket depth (abs) or depth relative to Z0 (inc) – (only for ∇, ∇∇∇ or ∇∇∇ edge)
DXY
Maximum plane infeed

Maximum plane infeed as a percentage of the milling cutter diameter

- (only for ∇ and ∇∇∇)
DZ Maximum depth infeed – (only for ∇, ∇∇∇ or ∇∇∇ edge)
UXY Plane finishing allowance – (only for ∇, ∇∇∇ or ∇∇∇ edge)
UZ Depth finishing allowance – (only for ∇, ∇∇∇)
Insertion The following insertion modes can be selected – (only for ∇, ∇∇∇ or ∇∇∇ edge):
Predrilled: (only for G code)

With G0, the pocket center point is approached at the retraction plane level, and
then, from this position, also with G0, the axis travels to the reference point brought
forward by the safety clearance. The machining of the rectangular pocket is then
performed according to the selected insertion strategy, taking into account the
programmed blank dimensions.
Perpendicular: Insert vertically at center of pocket

The tool executes the calculated actual depth infeed at the pocket center in a single
block. This setting can be used only if the cutter can cut across center or if the
pocket has been predrilled.
Helical: Insert along helical path

The cutter center point traverses along the helical path determined by the radius
and depth per revolution (helical path). If the depth for one infeed has been
reached, a full-circle motion is executed to remove the slope caused by insertion.
Oscillating: Insert with oscillation along center axis of rectangular pocket(only for G

code)
The cutter center point oscillates back and forth along a linear path until it reaches
the depth infeed. When the depth has been reached, the path is traversed again
without depth infeed in order to remove the slope caused by insertion.
Turning
Operating Manual, 02/2012, 6FC5398-8CP40-3BA0
Programming technology functions (cycles)
8.4 Milling
Unit
Degrees
mm
mm
mm
mm
mm
mm
Degrees
mm
mm
%
mm
mm
mm
393