Siemens SINUMERIK 840D sl Operating Manual page 618

Multi-channel machining
11.2 Multi-channel support
Parameter
XRA
XRI
ZRA
ZRI
Tailstock
XRR
Tool change point
XT
ZT
S
SC
Mach. direction of rotation Milling direction
618
Description
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.
● Conventional
● Climbing
Unit
mm
mm
mm
mm
mm
mm
mm
rev/min
mm
Operating Manual, 05/2017, A5E40868721
Turning