FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

PROGRAMMING
21. TWO–PATH CONTROL
FUNCTION
B–62754EN/01
384
Tool post 1 program Tool post 2 program
G68 ; G68 ; Balance cut mode
G01Z100.0 ; G01Z100.0 ; Balance cut
Z0 ; Z0 ; Balance cut
G69 ; G69 ; Balance cut mode
cancel
CAUTION
1 Balance cutting is not performed in dry run or machine lock
state.
2 When rapid traverse operation is specified, balance cut
processing is not performed.
3 A workpiece for which thread cutting has been performed in
the balance cut mode cannot be subjected to thread cutting
in the cancel mode. Thread cutting starts at a different
position.
NOTE
1 Time delay before the pulse distribution of both tool posts
is started is 2 msec or shorter.
2 In the balance cut mode, synchronization is established at
the start of a move block, so movement can momentarily
stop.
3 If feed hold operation is performed during balance cutting
using both tool posts, balance cut processing is not
performed at restart time, it is performed when the next
move command is specified for both tool posts.
4 The cancel mode (G69) is set by a reset.
5 When the option “mirror image for double turrets” is
selected, the balance cut function cannot be used.
Example

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