Siemens SINUMERIK 840D sl Operating Manual page 615

Parameter
Tailstock
XRR
Tool change point
XT
ZT
SC
Mach. direction of rotation Milling direction
Program header without multi-channel data
If a program is to be executed through one channel, then deselect multi-channel data. You
then have the option of entering cross-program values into the program header as usual.
Parameter
Multi-channel
data
Measurement unit
Data for
Work offset
Turning
Operating Manual, 05/2017, A5E40868721
Description
● 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
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
Description
● No
This is only possible if you are not using a job list.
The setting of the measurement unit in the program header only refers to the
position data in the actual program.
All other data, such as feedrate or tool offsets, are entered in the unit of measure
that you have set for the entire machine.
● Main+counterspindle
All values for the main and counterspindle are saved in one data set
● Main spindle
Data set for the main spindle
● Counterspindle
Data set for the counterspindle
If the machine does not have a counterspindle, then the entry field "Data for" is
not applicable.
The work offset in which the zero point of the workpiece is saved.
You can also delete the default value of the parameter if you do not want to specify
a work offset.
Multi-channel machining
11.2 Multi-channel support
Unit
mm
mm
mm
mm
Unit
mm
inch
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