Siemens sinumerik 840D sl Operating Manual page 473

Parameter
Tool change point
XT
ZT
Data for
Retraction
XRA
XRI
ZRA
ZRI
Tailstock
XRR
Tool change point
XT
ZT
Turning
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
Description
Tool change point, which must be approached by the revolver with its zero point.
Work (Workpiece Coordinate System)

Machine (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
Main spindle

Counterspindle

If several spindles have been set-up, the program can operate at both spindles
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"
Yes

No

Retraction plane tailstock – only "Yes" for tailstock
Tool change point, which must be approached by the revolver with its zero point.
Work (Workpiece Coordinate System)

Machine (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
Multi-channel support
9.3 Multi-channel editor
Unit
rev/min
473