Siemens SINUMERIK 840D sl Operating Manual page 349

Parameter Description
αS Starting angle offset - (for rigid tapping only)
(only for G code)
S Spindle speed - (for rigid tapping only)
(only for G code)
Machining The following machining operations can be selected:
● 1 cut
The thread is drilled in one cut without interruption.
(not in the "with
compensating
● Chip breaking
chuck" mode)
The drill is retracted by the retraction amount V2 for chip breaking.
● Swarf removal
The drill is retracted from the workpiece for swarf removal.
D Maximum depth infeed - (only when used without compensating chuck, swarf removal
or chip breaking)
Retraction Retraction distance - (for chip breaking only)
● Manual
Retraction distance after each machining step (V2)
● Automatic
The tool is retracted by one revolution.
V2 Retraction distance after each machining step – (only without compensating chuck, chip
breaking and manual retraction)
Distance by which the drill is retracted for chip breaking.
DT (for ShopMill, Dwell time in seconds:
only in the "with
● without compensating chuck
compensating
–
chuck without en‐
coder" mode)
–
–
● with compensating chuck
–
–
SR (only for G Spindle speed for retraction - (only for when a compensating chuck is not used)
code)
SDE (only for G Direction of rotation after end of cycle:
code)
●
●
●
Milling
Operating Manual, 05/2017, A5E40868956
1 cut: Dwell time at final drilling depth
Chip breaking: Dwell time at drilling depth
Swarf removal: Dwell time at the drilling depth and after retraction
with encoder: Dwell time after drilling
without encoder: Dwell time at final drilling depth
Programming technological functions (cycles)
10.1 Drilling
Unit
Degrees
rpm
mm
mm
s
rpm
349