Automatic Compensation Of Offset For Tilting Axes; Miscellaneous Function M114 - HEIDENHAIN iTNC 530 HSCI Technical Manual

6.5.7 Automatic compensation of offset for tilting axes

Miscellaneous
function M114
770
Unlike the "tilted working plane," here the coordinate system is not tilted. With
M114, M128 or TCPM, the iTNC compensates the offset of the tool that
results from tilting the axes. The tool tip is always located on the programmed
nominal coordinates.
B
Z
The iTNC can run a 3-D length compensation; the radius compensation must
be performed by the CAD system or the postprocessor. If the iTNC
compensates the tool length, then the programmed feed rate refers to the tool
point. Otherwise it refers to the tool datum.
Automatic compensation with M114:
Linear and rotational movements are superimposed. The resulting contour

deviations depend on the length of the linear interpolation.
When the table is rotated, the coordinate system is rotated against the

machine coordinate system. The iTNC does not take this into account.
M114 can be used with non-controlled tilting axes or PLC tilting axes. In this

case, the current tilting angle and the tilting axis are entered in the NC block
behind M114.
M114 is effective locally in cycles, i.e. the function is canceled before the

return to the main program. If you want M114 to also be effective in the
main program, you must use FN17: SYSWRITE ID420 NR0 IDX0 = 0 (globally
effective coordinate transformation).
B
dz
dx
dB
X
HEIDENHAIN Technical Manual iTNC 530 HSCI