Siemens SINUMERIK 840D sl Operating Manual page 251

Parameter
ZB
Retraction
XRA
XRI
ZRA
XRA
XRI
ZRA
XRA
XRI
ZRA
ZRI
Tailstock
XRR
Tool change point
XT
ZT
Turning
Operating Manual, 05/2017, A5E40868721
Description
Machining dimension (abs) or machining dimension in relation to ZA (inc)
The retraction area indicates the area outside of which collision-free traversing of
the axes must be possible.
● simple
Retraction plane X external ∅ (abs) or
retraction plane X referred to XA (inc)
- only for "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)
● extended - not for a "pipe" blank
Retraction plane X external ∅ (abs) or
retraction plane X referred to XA (inc)
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)
● all
Retraction plane X external ∅ (abs) or
retraction plane X referred to XA (inc)
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 plant Z rear
● 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
Creating a ShopTurn program
9.6 Program header
Unit
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
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