HEIDENHAIN iTNC 530 (340 49x-03) ISO programming - Manual (Page 275)

HEIDENHAIN iTNC 530 275
7.
5 Miscellaneous F
u
nctions f
o
r Rotary Ax
es
M128 on tilting tables
If you program a tilting table movement while M128 is active, the TNC
rotates the coordinate system accordingly. If, for example, you rotate
the C axis by 90° (through a positioning command or datum shift) and
then program a movement in the X axis, the TNC executes the
movement in the machine axis Y.
The TNC also transforms the defined datum, which has been shifted
by the movement of the rotary table.
M128 with 3-D tool compensation
If you carry out a 3-D tool compensation with active M128 and active
radius compensation G41/G42, the TNC will automatically position the
rotary axes for certain machine geometrical configurations.
Effect
M128 becomes effective at the start of block, M129 at the end of block.
M128 is also effective in the manual operating modes and remains
active even after a change of mode. The feed rate for the
compensation movement will be effective until you program a new
feed rate or until you reset M128 with M129.
To cancel M128 enter M129. The TNC also resets M128 if you select a
new program in a program run operating mode.
Example NC blocks
Feed rate of 1000 mm/min for compensation movements.
N50 G01 G41 X+0 Y+38.5 IB-15 F125 M128 F1000 *