(2) G99 ;
By this command,
the F(E) code specified
after is executed on a feed per revolution
basis.
=
Notes :
1.
2.
3.
G 98 and G99 are modal G codes, which remain
valid until the designation is changed.
When switching between G 98 and G99 is per-
formed, F (E) code designated before is can-
celled.
So, it must be designated again.
Otherwise,
an error is caused at the next
cutting block.
The initial G code at power-on may be switch-
ed between G98 and G99 by the use of the
following parameter:
-
2.8.29 TOOL LIFE CONTROL (G 122, G 123)+
This feature allows a long, unattended operation
by replacing the tools each time the designated
number of pieces or the designated use hour is
reached.
(1) The tool lifecontrol consists of the following
three steps:
a.
Registration of tool information
(i) Registration of tool group number.
The tool numbers of the tools of the same
type are registered as one group .
(ii)
Registration of lifeof each tool group.
The number of pieces that can be machined
by a tool to be registered in each tool
group and the usable hours of it are reg-
istered.
(iii) Registration of use offset number of each
tool.
These must be registered from the part pro-
gram in the memory of the equipment before
starting machining.
b.
c.
(2)
a.
T designation for tool lifecontrol
For the T designation in the part program,
the special T designation for tool lifecon–
trol must be used.
Input/output signals for tool lifecontrol.
. Tool
“ Tool
. Tool
. Tool
lifecontrol I/0 signal.
skip input.
replacement completion input.
replacement completion group number
input.
The above inputs are provided to implement
the highly efficienttool lifecontrol feature.
The following describe these three steps
in detail:
Registration of tool information
The part program for tool information
registration
1
G123 ;
1
G code for tool information
registration start
Command for group number
and life
[
Address P : Tool group
number
Address L: Life per tool
1
The tool numbers of the
group designated by
address P, and offset
memory number
[
:~1
: Tool number (1 to 50)
_::
Compensation memory
number (1 to 50)
1
G code for tool information
registration completion.
Group No.
19 groups, 1 to 19, may be used.
Life
per
Tool
Number of
For groups 1 to 9, life is
designated by the number
pieces
of works (1 to 9999 works)
1-”””
Forgroups 10 to 19, life is
Use hours
designated by use hours
(1 to 9999 minutes).
125