Siemens SINUMERIK 840D sl Operating Manual page 316

Programming technology functions (cycles)
10.1 Drilling
Parameter Description
Drilling ● 1 cut
interruption
● Chipbreaking
● Swarf removal
● Chipbreaking and swarf removal
D 1st drilling depth referred to Z0 (inc.)
FD1 Percentage for the feedrate for the first infeed
DF Percentage for the feedrate for each additional infeed
Infeed increment is continually reduced in the direction of final
drilling depth
V1 Minimum infeed
V1 < Infeed increment: The tool is inserted by the infeed in‐
crement
V1 > Infeed increment: The tool is inserted by the infeed value
programmed under V1.
V2 Retraction distance after each machining step
Clearance distance The clearance distance is calculated by the cycle.
DTB Dwell time at each drilling depth
N - (only for "chip‐ Number of chipbreaking strokes before each swarf removal
breaking and swarf operation
removal")
Retraction for swarf Swarf removal at the pilot hole depth or safety clearance
removal
DTS Dwell time for swarf removal in seconds
DT - (only for Dwell time at final depth in seconds
through drilling
"no")
Retraction Retraction to pilot hole depth or retraction plane
FR Retraction in rapid traverse
Direction of spindle
rotation during re‐
traction
SR (only for selec‐ Spindle speed for retraction referred to the drilling speed
ted spindle direc‐
tion of rotation)
316
Machine manufacturer
Please observe the information provided by the machine manufacturer.
Value Can be set in SD
10 mm
90 %
2 mm
1 mm
Automatic
0.6 s
1
Safety clear‐
ance
0.6 s
0.6 s
Pilot hole
depth
M5
10 %
Operating Manual, 05/2017, A5E40868721
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