Siemens SINUMERIK 840D sl Operating Manual page 614

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Multi-channel machining
11.2 Multi-channel support
Parameter
XRA
XRI
ZRA
ZRI
Tailstock
XRR
Tool change point
XT
ZT
Data for
Retraction
XRA
XRI
ZRA
ZRI
614
Description
Retraction plane X external ∅ (abs) or
retraction plane X referred to XA (inc)
- not for "basic" retraction
retraction plane X internal ∅ (abs) or
retraction plane X referred to XI (inc) - not for "pipe" blank
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
For "Main+counterspindle", the tailstock only refers to the main spindle (tailstock
on the counterspindle side)
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
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)
- 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"
Unit
mm
mm
mm
mm
mm
mm
mm
rev/min
mm
Operating Manual, 05/2017, A5E40868721
Turning

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