Siemens SINUMERIK 840D sl Turning Operating Manual page 368

Programming technology functions (cycles)
10.1 Drilling
Parameter Description
ZPV - (only for Clearance distance of pilot hole
pilot hole)
FP - (only for pi‐ First cut feedrate as a percentage of the drilling feedrate
lot hole)
First cut feedrate (ShopTurn)
First cut feedrate (G code)
SP / VP
(only for pilot
hole)
ZA - (only for pre‐ Predrilling depth (abs) or predrilling depth in relation to Z0 (inc)
drilling)
FA - (only for pre‐ Predrilling feedrate as a percentage of the drilling feedrate
drilling)
Predrilling feedrate (ShopTurn)
Predrilling feedrate (G code)
Soft first cut
● Yes
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)
FS (only "Yes" First cut feedrate as a percentage of the drilling feedrate
for soft first cut)
First cut feedrate (ShopTurn)
First cut feedrate (G code)
ZS2 Depth of each first cut for feedrate increase (inc)
(only "Yes" for
soft first cut)
Machining ● One cut
● Chip breaking
● Swarf removal
● Chip breaking and swarf removal
FD1 Percentage for the feedrate at the first infeed.
D 1st drilling depth (abs) or 1st drilling depth in relation to Z0 (inc)
368
Approach when
spindle is stationary
Direction of spindle Spindle speed when approaching as percentage of
rotation during ap‐ the drilling speed
proach
Spindle speed during approach
Constant cutting rate when approaching (G code)
Constant cutting rate when approaching (ShopTurn)
Unit
mm
%
mm/rev or mm/min
distance/min or dis‐
tance/rev
Degrees
%
rpm
Path/min
m/min
mm
%
mm/min or mm/rev.
distance/min or dis‐
tance/rev
mm
%
mm/min or mm/rev.
distance/min or dis‐
tance/rev
mm
%
mm
Operating Manual, 06/2019, A5E44903486B AB
Turning