Siemens Sinumerik 840D Operating Turning page 65

Circular interpolation
5.3 Circular interpolations before and behind the turning axis
The sketch below shows once again the principle of direction programming
of circular interpolations.
Code G02: Circular arc clockwise
Code G03: Circular arc anti-clockwise
The following sketch shows the circular arc orientation on turning ma-
chines with different tool arrangements due to the machine layout.
G2
G3
Note:
No matter which tool arrangement is applicable to the particular machine,
the program as per DIN ISO always describes the contour of the workpiece
behind the turning axis.
840D/828D SINUMERIK Operate
Tool arrangement behind the
turning axis.
G3
G2
Tool arrangement in front of
the turning axis.
Page 11
Section 5
Notes
B503
B503