Siemens SINUMERIK 840D sl Operating Manual page 338

Programming technological functions (cycles)
10.1 Drilling
Parameter Description
Technology at Selecting the drilling feedrate
the entrance to
● Without predrilling
the hole
Drilling with feedrate F
● With predrilling
Drilling with feedrate FA
● With pilot hole
Insertion in the pilot hole with feedrate FP.
ZP - (only for pi‐ Depth of the pilot hole as a factor of the bore diameter
lot hole)
Depth of the pilot hole in relation to Z0 (inc) or depth of the pilot hole (abs)
FP - (only for pi‐ First cut feedrate as a percentage of the drilling feedrate
lot hole)
First cut feedrate (ShopMill)
First cut feedrate (G code)
SP
(only for pilot
hole)
ZA - (only for Predrilling depth (abs) or predrilling depth in relation to Z0 (inc)
predrilling)
FA - (only for Predrilling feedrate as a percentage of the drilling feedrate
predrilling)
Predrilling feedrate (ShopMill)
Predrilling feedrate (G code)
Soft first cut
● Yes
Soft first cut with feedrate FS
● No
First cut with drilling feedrate
ZS1 Depth of each first cut with constant first cut feedrate FS (inc)
(only "Yes" for
soft first cut)
ZS2 Depth of each first cut for feedrate increase (inc)
(only "Yes" for
soft first cut)
FS First cut feedrate as a percentage of the drilling feedrate
(only "Yes" for
First cut feedrate (ShopTurn)
soft first cut)
First cut feedrate (G code)
Drilling
● One cut
interruption
● Chip breaking
● Swarf removal
● Chip breaking and swarf removal
D First drilling depth (abs) or first drilling depth in relation to Z0 (inc)
FD1 Percentage for the feedrate at the first infeed
338
Spindle position during approach (spindle off)
Unit
* Ø
mm
%
mm/rev or mm/min
distance/min or dis‐
tance/rev
Degrees
mm
%
mm/min or mm/rev.
distance/min or dis‐
tance/rev
mm
mm
%
mm/min or mm/rev.
distance/min or dis‐
tance/rev
mm
%
Operating Manual, 05/2017, A5E40868956
Milling