HEIDENHAIN iTNC 530 (340 49x-04) - Manual (Page 212)

212 5 Programming: Tools
5.2 T
ool D
a
ta
Automatic tool change if the tool life expires: M101
The TNC automatically changes the tool if the tool life TIME1 expires
during program run. To use this miscellaneous function, activate M101
at the beginning of the program. M101 is reset with M102.
You enter the number of the replacement tool in the RT column of the
tool table. If no tool number is entered there, the TNC inserts a tool
that has the same name as the momentarily active one. The TNC
starts the search from the beginning of the tool table and inserts the
first tool it finds.
The tool is changed automatically
„ after the next NC block after expiration of the tool life, or
„ at latest one minute after tool life expires (calculation is for a
potentiometer setting of 100%). This only applies if the duration of
the NC block is less than one minute; otherwise the change occurs
after the NC block concludes.
The function of M101 can vary depending on the individual
machine tool. The machine tool manual provides further
information.
An automatic tool change with active radius
compensation is not possible if an NC program is used on
your machine for the tool change. The machine tool
manual provides further information.
If the tool life ends while M120 (look ahead) is active, the
TNC waits to change the tool until after the block in which
you canceled the radius compensation with an R0 block.
The TNC automatically changes the tool even if a fixed
cycle is being run.
The TNC does not automatically change the tool as long
as a tool change program is running.