Siemens sinumerik 840D sl Operating Manual page 474

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Multi-channel support
9.3 Multi-channel editor
Parameter
SC
Mach. direction of
rotation
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
write to
ZV
Blank
XA
474
Description
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.
Milling direction
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.
Yes
Parameter ZV is displayed
No
Parameter ZV is not displayed
Z value of the work offset
For G54, the Z value is entered into the work offset.
Note:
Please observe the machine manufacturer's data
Define the form and dimensions of the workpiece:
Cylinder
Outer diameter ∅
Polygon
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
Unit
Unit
mm
inch
mm
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