HEIDENHAIN TNC 620 User Manual page 120

3
Fundamentals, file management
3.1 Fundamentals
Input coordinate system I-CS
The input coordinate system is a 3-D Cartesian coordinate system.
The position and orientation of the input coordinate system depend
on the active transformations in the working plane coordinate
system.
Without active transformations in the working plane
coordinate system, the position and orientation
of the input coordinate system and working plane
coordinate system are identical.
There are also no transformations in the workpiece
coordinate system on 3-axis machine tools or with
pure 3-axis machining. The BASE TRANSFORM.
values of the active preset line are directly affective
on the input coordinate system with this assumption.
With the aid of positioning blocks in the input coordinate system,
the user defines the position of the tool and therefore the position
of the tool coordinate system.
Positioning blocks in input coordinate system:
Paraxial positioning blocks
Positioning blocks with Cartesian or polar coordinates
Positioning blocks with Cartesian coordinates and surface
normal vectors
7 X+48 R+
7 L X+48 Y+102 Z-1.5 R0
7 LN X+48 Y+102 Z-1.5 NX-0.04658107 NY0.00045007
NZ0.8848844 R0
The position of the tool coordinate system is
determined by the Cartesian coordinates X, Y and
Z also for positioning blocks with surface normal
vectors.
In conjunction with 3-D tool compensation, the
position of the tool coordinate system can be shifted
along the surface normal vectors.
Orientation of the tool coordinate system can be
performed in various reference systems.
Further Information:
page 121
120
"Tool coordinate system T-CS",
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
WPL -CS
I-CS
X0
Y0
Y10
X10
X0
Y0
A contour referencing the input coordinate
system origin can be simply transformed
I-CS
Y10
X10
at random.