Program Header - Siemens SINUMERIK 840D sl Turning Operating Manual

Creating a ShopTurn program

9.6 Program header

9.6 Program header
In the program header, set the following parameters, which are effective for the complete
program.
Parameter
Measurement unit
Work offset
Write to the work off‐
set
ZV
Blank
XA
N
SW / L
W
L
XA
XI
ZA
ZI
ZB
Retraction
XRA
XRI
ZRA
300
Description
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.
Selection of 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.
Enter the work offset in the program
● No
The actual Z value of the selected work offset is used.
● Yes
Enter the work offset in the ZV parameter
The actual Z value of the selected work offset is overwritten with the ZV value.
Z value of the work offset of the workpiece
Define the form and dimensions of the workpiece:
● Cylinder
Outer diameter ∅
● Polygon
Number of edges
Width across flats
Edge length
● Centered cuboid
Width of blank
Length of blank
● Tube
Outer diameter ∅
Inner diameter ∅ (abs) or wall thickness (inc)
Initial dimension
Final dimension (abs) or final dimension in relation to ZA (inc)
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)
Operating Manual, 06/2019, A5E44903486B AB
Unit
mm
inch
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
Turning