HEIDENHAIN TNC 335 Technical Manual - Manual (Page 164)

8/95
TNC 360 3 Servo Positioning of the NC Axes 4-67
The resulting path is as follows:
α
α =
Change of axis movement direction
s
a
= Servo lag
Axis standstill
Path when MP7460 <
α
Path when MP7460 >
α
s
a
MP7460 Constant feed rate in corners
Input value: 0.001 to 179.999°
3.4.3 Constant feed rate in corners with M90
The miscellaneous function M90 was introduced to enable constant surface speed to be achieved in
corners without radius compensation.
This miscellaneous function is only effective in operation with lag!
s
a
without M90
with M90