HEIDENHAIN TNC 407 (280 580) ISO Programming - Manual (Page 270)

8-50
8 Cycles
TNC 426/TNC 425/TNC 415 B/TNC 407
8.5 Coordinate Transformations
ROTATION (G73)
Application
This cycle enables the coordinate system to be rotated about the active
datum in the machining plane within a program.
Activation
Rotation becomes active as soon as it is defined. This cycle is also
effective in the POSITIONING WITH MANUAL INPUT mode.
Reference axis for the rotation angle:
• X/Y plane X axis
• Y/Z plane Y axis
• Z/X plane Z axis
The active rotation angle is displayed in the additional status display.
Input data
The rotation angle is entered in degrees (°).
Input range: –360° to +360° (absolute or incremental).
Cancellation
Rotation is cancelled by entering a rotation angle of 0°.
Example: Rotation
A contour (subprogram 1) is to be executed
once as originally programmed referenced to
the datum X+0/Y+0, and then rotated by 35°
and referenced to the position X+70 Y+60.
X
Y
Z
70
60
1
2
3
35
°
Y
X
Z
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