Traversing reference points in tilted axes, Setting the datum in a tilted coordinate system – HEIDENHAIN iTNC 530 (60642x-03) ISO programming User Manual
Page 523

HEIDENHAIN iTNC 530
523
14.1
0
Tilting the w
o
rk
ing plane (sof
tw
ar
e option 1)
Traversing reference points in tilted axes
With tilted axes, you use the machine axis direction buttons to cross 
over the reference points. The TNC interpolates the corresponding 
axes. Be sure that the function for tilting the working plane is active in 
the Manual Operation mode and that the actual angle of the tilted axis 
was entered in the menu field.
Setting the datum in a tilted coordinate system
After you have positioned the rotary axes, set the datum in the same 
manner as for a non-tilted system. The behavior of the TNC during 
datum setting depends on the settings of Machine Parameter 7500 in 
your kinematics table:
MP 7500, bit 5=0
With an active tilted working plane, the TNC checks during datum 
setting in the X, Y and Z axes whether the current coordinates of the 
rotary axes agree with the tilt angles that you defined (3-D ROT 
menu). If the tilted working plane function is not active, the TNC 
checks whether the rotary axes are at 0° (actual positions). If the 
positions do not agree, the TNC will display an error message.
MP 7500, bit 5=1
The TNC does not check whether the current coordinates of the 
rotary axes (actual positions) agree with the tilt angles that you 
defined.
Danger of collision!
Always set a reference point in all three reference axes.
If your machine tool is not equipped with axis control, you 
must enter the actual position of the rotary axis in the 
menu for manual tilting: The actual positions of one or 
several rotary axes must match the entry. Otherwise the 
TNC will calculate an incorrect datum.
