HEIDENHAIN TNC 640 User Manual page 151

Fundamentals, File Management | 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 line of the preset table have a direct effect 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.
The NOML., ACTL., LAG and ACTDST displays are also
based on the input coordinate system.
Positioning blocks in input coordinate system:
Paraxial positioning blocks
Positioning blocks with Cartesian or polar coordinates
Example
N70 X+48 R+*
N70 G01 X+48 Y+102 Z-1.5 R0*
Orientation of the tool coordinate system can be
performed in various reference systems.
Further information:
page 152
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017
"Tool coordinate system T-CS",
WPL -CS
I-CS
X0
Y0
Y10
X10
X0
Y0
A contour referencing the input coordinate
system origin can easily be transformed any
4
I-CS
Y10
X10
way you need.
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