HEIDENHAIN iTNC 530 (340 49x-03) ISO programming - Manual (Page 269)

HEIDENHAIN iTNC 530 269
7.
4 Miscellaneous F
u
nctions f
o
r Cont
our
ing Beha
vior
Suppress limit switch message: M150
Standard behavior
The TNC stops program run with an error message if the tool were to
leave the active working space during a positioning block. The error
message is output before the positioning block is executed.
Behavior with M150
If the end point of a positioning block with M150 is outside the current
working space, the TNC moves the tool to the edge of the working
space, and then continues the program run without an error message.
Effect
M150 is effective only in the block in which it is programmed.
M150 becomes effective at the start of block.
Danger of collision!
Keep in mind that the approach path to the position
programmed after the M150 block might be changed
significantly!
M150 is also effective on traverse range limits defined
with the MOD function.
When dynamic collision monitoring (DCM) is active, the
TNC might move the tool only until it detects a collision
and, from there, complete the NC program without any
error message. This can result in tool paths different from
those programmed!