HEIDENHAIN iTNC 530 (340 49x-05) ISO programming User Manual
Page 415

HEIDENHAIN iTNC 530
415
13.2 P
a
llet Oper
ation with T
ool-Or
ient
e
d Mac
h
ining
PALPRESET
(entry optional):
Preset number from the pallet preset table. The TNC interprets the 
preset number defined here as pallet datum (PAL entry in PAL/PGM 
column). You can use the pallet preset to compensate mechanical 
differences between the pallets. A pallet preset can also be 
activated automatically when a pallet is added
PRESET
(entry optional):
Preset number from the preset table. The preset number defined 
here is interpreted by the TNC either as a pallet datum (PAL entry in 
the PAL/PGM column) or as a workpiece datum (PGM entry in the 
PAL/PGM
line). If there is a pallet preset table active on your machine,
then use the PRESET column only for workpiece datums
DATUM
(entry optional):
Name of the datum table. The datum table must be stored in the 
same directory as the pallet table. Otherwise you must enter the full 
path name for the datum table. Datums from the datum table can be 
activated in the NC program with Cycle 7 DATUM SHIFT.
X, Y, Z
(entry optional, other axes also possible):
For pallets and fixtures, the programmed coordinates are referenced 
to the machine datum. For NC programs, the programmed 
coordinates are referenced to the pallet or fixture datum. These 
entries overwrite the datum that you last set in the Manual mode of 
operation. With the miscellaneous function M104 you can reactivate 
the datum that was last set. With the actual-position-capture key, 
the TNC opens a window that enables you to have the TNC enter 
various points as datums (see table below):
Position
Meaning
Actual values
Enter the coordinates of the current tool position 
referenced to the active coordinate system.
Reference 
values
Enter the coordinates of the current tool position 
referenced to the machine datum.
ACTUAL
measured 
values
Enter the coordinates referenced to the active 
coordinate system of the datum last probed in 
the Manual operating mode.
REF
measured
values
Enter the coordinates referenced to the machine 
datum of the datum last probed in the Manual 
operating mode.
