HEIDENHAIN TNC 426 PB/M Technical Manual page 414

Miscellaneous
function M128
Miscellaneous
function M144/
M145
6 – 84
Automatic compensation with M128:
n
Linear and rotational movements are superimposed. The resulting contour
deviations are compensated.
n
When the table is rotated, the coordinate system is rotated against the
machine coordinate system. The TNC takes this into account.
n
M128 remains in effect even after a change in operating modes. This means
that the axis can be moved with the compensated machine geometry in
Manual mode with the axis direction keys, or in the Handwheel mode.
n
With the miscellaneous function M118, the handwheel positioning
movements can be superimposed on the program run movements. The
TNC automatically performs the compensating movements in the principle
axes.
When M128 is used, the principal axes make compensating movements:
7 7 7 7 In MP7471, define the maximum velocity of the principal axes during
compensating movements.
MP7471 Maximum velocity of the principal axes during
compensating movements through M128
Input: 0 to 300 000 [mm/min]
With M144 the movement of a tilted axis is recorded in the display. There is
no need for the axes to traverse a compensatory path. M144 is deactivated
with M145.
Z
Display: Z 0
X 0
Y 0
B 0
FN18: SYSREAD ID310 NR144 can determine if M144 is active or inactive.
X
L B+90 M144
HEIDENHAIN Technical Manual TNC 426, TNC 430
Z
X
Display: Z +125
X -125
Y 0
B +90