Siemens SINUMERIK 840D Operating Manual page 291

Parameters, G code program
PL Machining plane
Milling direction
RP Retraction plane
SC Safety clearance
F Feedrate
Parameter Description
Machining The following machining operations can be selected:
∇ (roughing)

∇∇∇ (finishing)

Direction Same direction of machining


Alternating direction of machining


The positions refer to the reference point:
X0 Corner point 1X
Y0 Corner point 1Y
Z0 Height of blank
X1 Corner point 2X (abs) or corner point 2X in relation to X0 (inc)
Y1 Corner point 2Y (abs) or corner point 2Y in relation to Y0 (inc)
Z1 Height of blank (abs) or height of blank in relation to Z0 (inc)
DXY Maximum plane infeed
Alternately, you can specify the plane infeed in %, as a ratio → plane infeed (mm) to the
milling cutter diameter (mm).
DZ Maximum depth infeed – (for roughing only)
UZ Finishing allowance, depth
Note
The same finishing allowance must be entered for both roughing and finishing. The finishing
allowance is used to position the tool for retraction.
Milling
Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
Parameters, ShopMill program
T
D
mm F
mm S / V
mm/min
Programming technological functions (cycles)
Tool name
Cutting edge number
Feedrate
Spindle speed or constant
cutting rate
8.2 Milling
mm/min
mm/rev
rpm
m/min
Unit
mm
mm
mm
mm
%
mm
mm
291