HEIDENHAIN TNC 410 ISO Programming - Manual (Page 190)

164 7 Programming: Miscellaneous Functions
7.
5 Mis
c
ellaneous
F
unctions
f
o
r R
o
tary Ax
e
s
7.5 Miscellaneous Functions for
Rotary Axes
Feed rate in mm/min on rotary axes A, B, C:
M116 (not TNC 410)
Standard behavior
The TNC interprets the programmed feed rate in a rotary axis in
degrees per minute. The contouring feed rate therefore depends on
the distance from the tool center to the center of the rotary axis.
The larger this distance becomes, the greater the contouring feed
rate.
Feed rate in mm/min on rotary axes with M116
The TNC interprets the programmed feed rate in a rotary axis in mm/
min. With this miscellaneous function, the TNC calculates the feed
rate for each block at the start of the individual block. With a rotary
axis, the feed rate is not changed during execution of the block even
if the tool moves toward the center of the rotary axis.
Effect
M116 is effective in the working plane.
With M117 you can reset M116. M116 is also canceled at the end of
the program.
M116 becomes effective at the start of block.
The machine geometry must be entered in Machine
Parameters 7510 and following by the machine tool
builder.