Siemens SINUMERIK 840D sl Turning Operating Manual page 682

Multi-channel machining
11.2 Multi-channel support
Parameter
Data for
Retraction
XRA
XRI
ZRA
ZRI
Tailstock
XRR
Tool change point
XT
ZT
S
SC
Mach. direction of rota‐
tion
682
Description
If several spindles have been set up, the program can operate at both spindles.
Select the 2nd spindle
● Main spindle
● Counterspindle
● Empty
The program only operates at one spindle
The retraction area indicates the area outside of which collision-free traversing of
the axes must be possible.
● simple
● extended – not for a "pipe" blank
● all
Retraction plane X external ∅ (abs) or
retraction plane X referred to XA (inc)
- for "basic" retraction, only for a "pipe" blank
retraction plane X internal ∅ (abs) or
retraction plane X referred to XI (inc)
Retraction plane Z front (abs) or
retraction plane Z referred to ZA (inc)
Retraction plane Z rear – only for retraction "all"
● Yes
● No
Retraction plane tailstock – only "Yes" for tailstock
Tool change point, which must be approached by the revolver with its zero point.
● WCS (Workpiece Coordinate System)
● MCS (Machine Coordinate System)
Notes
● The tool change point must be far enough outside the retraction area that it is
not possible for any tool to protrude into the retraction area while the revolver
is moving.
● Ensure that the tool change point is relative to the zero point of the revolver and
not the tool tip.
Tool change point X ∅
Tool change point Z
Spindle speed
The safety clearance defines how close the tool can approach the workpiece in
rapid traverse.
Note
Enter the safety clearance without sign into the incremental dimension.
Milling direction
● Conventional
● Climbing
Operating Manual, 06/2019, A5E44903486B AB
Unit
mm
mm
mm
mm
mm
mm
mm
rev/min
mm
Turning