Siemens sinumerik 840D sl Operating Manual page 399

Parameters Description
Maximum plane infeed

Maximum plane infeed as a percentage of the milling cutter diameter

DXY or
- (only for G code and ShopTurn, machining surface, face C/Y/B)
DYZ
- (only for ShopTurn, machining surface, peripheral surface C/Y)
Finishing allowance plane
UXY or - (only for G code and ShopTurn, machining surface, face C/Y)
UYZ - (only for ShopTurn, machining surface, peripheral surface C/Y)
Lift mode Lift mode before new infeed
If the machining operation requires several points of insertion, the retraction height can
be programmed:
to RP

Z0 + safety clearance - (only for G code and ShopTurn, machining surface, face

C/Y) or
X0 + safety clearance - (only for ShopTurn, machining surface, peripheral surface

C/Y)
On making the transition to the next insertion point, the tool returns to this height. If
there are no elements larger than Z0 in the pocket area, Z0 + safety clearance can be
selected as the retraction mode.
Predrilling procedure
Parameters, G code program
PRG Name of the program to be generated
PL Machining plane
Milling direction 

RP Retraction plane
SC Safety clearance
F Feedrate
Turning
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
1. The part program or ShopTurn program to be processed has been
created and you are in the editor.
2. Press the "Milling", "Contour milling", "Predrilling" and "Predrilling"
softkeys.
The "Predrilling" input window opens.
Climbing
Conventional
mm
mm
mm/min
Programming technology functions (cycles)
Parameters, ShopTurn program
T Tool name
D Cutting edge number
F Feedrate
S / V Spindle speed or constant
cutting rate
8.5 Contour milling
Unit
in
%
mm
mm
mm
mm
mm/min
mm/rev
rpm
m/min
399