
09 00.11.21 K.Yamamuro Revised to edition 09
08 00.06.22 T.Watanabe Revised to edition 08 T.Endo
01 99.03.10 K.Yamamuro New-registered T.Endo
A-63537E
ED DATE DESIG.
DESCRIPTION 86/134
SHEET
TITLE
FANUC Series 16i/18 i -TA
Compound Machining Function
TITLE
CUST.DRAW.NO.
3.3.5 Tool life
The life of tool is specified by a usage frequency (count) or usage time (in
minutes.)
The usage count is incremented by 1 for each tool used in a program. In other
words, the usage count is incremented by 1 only when the first tool group
number and tool change command are specified after the CNC unit enters
the automatic operation state from the reset state.
When a tool change is specified (M06), tool life management is started for
the tool specified by the tool group number. In tool life management, the
time during which a tool is used in the cutting mode is counted in four second
increments. If tool group number changed before the incremental time of four
seconds elapses., the time is not counted. (It is available to count the time in
one second increment by setting parameter No.6801#5(E1S) to 1.)
The time a tool is used for single block stop, feed hold, rapid traverse, dwell,
machine lock, and interlock is not counted.
• Usage count
Note
Even if the same tool group number is specified more than once in a
program, the usage count is only incremented by 1 and no new tools
are selected.
• Usage time
Note
1. When a tool is selected from available tools, tools are searched
starting from the current tool towards the last tool to find a tool whose
life has not expired. When the last tool is searched during this
search, the search restarts from the first tool. When it has been
determined that there are no tools whose life has not expired, the last
tool is selected. When the tool currently being used is changed by
tool skip signal, the next new tool is selected using the method
described here.
2. When tool life counting indicates that the life of the last tool in a group
has expired, the tool change signal is output. When tool life managed
by time, the signal is output when the life of the last tool in the group
has expired. When tool life is managed by usage frequency (count),
the signal is output when the CNC unit is reset or the tool life count
restart M code is specified.
3. This function does not include whole specification of tool life
management of normal M system. The tool change type is A type in