Fundamentals, File Management | Fundamentals
4
HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
153
Working plane coordinate system WPL-CS
The working plane coordinate system is a 3-D Cartesian coordinate
system.
The position and orientation of the working plane coordinate
system depend on the active transformations in the workpiece
coordinate system.
Without active transformations in the workpiece
coordinate system, the position and orientation of
the working plane coordinate system and workpiece
coordinate system are identical.
There are 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
working plane coordinate system with this assumption.
In the working plane coordinate system the user defines the
position and orientation of the input coordinate system with use of
transformations.
The Mill-Turning function (option 50) additionally
provides the OEM rotation and precession angle
transformations.
OEM rotation is available only to the machine tool
builder and takes effect before the precession angle
Precession angle is defined in Cycles 800 ADJUST
XZ SYSTEM, 801 RESET ROTARY COORDINATE
SYSTEM and 880 GEAR HOBBING, and takes effect
before the other transformations of the working
plane coordinate system
The active values of the two transformations (if not
equal to 0) are shown on the POS tab of the expanded
status display. Check the values also in milling mode
because any active transformations will also remain
active in that mode!
Refer to your machine manual.
Your machine tool builder can use the OEM rotation and
precession angle transformations also without the Mill-
Turning function (option 50).
Transformations in the working plane coordinate system:
Cycle 7 DATUM SHIFT
Cycle 8 MIRROR IMAGE
Cycle 10 ROTATION
Cycle 11 SCALING
Cycle 26 AXIS-SPECIFIC SCALING
PLANE RELATIVE
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