YASKAWA yasnac lx3 - Page 136

2 8,29 TOOL LIFE CONTROL (G 122, G 123)+(Cont’d)
All tools in each group number are given when
the registered life (the number of pieces or use
hours) expires.
TLCH output turns ON when:
. Tool life expires in executing T
❑ C 99 commands
when number of workplaces is specified.
o Tool life expires and T command of its group
number is given when tool life is determined by
use hours.
(iii) T command for life completion group num-
ber was executed.
When the tool replacement request output
signal goes on, alarm number 157 is displayed on
the CRT screen.
c.
TLCH1, TLCH2:
Tool replacement request
output
After all machining life of registered tool
with either tool group No. expires, TLCH1
and 2 are closed by performing program end
or reset operation.
When main input is
closed,
check for the tool No. of machining
life expired and replace it.
Note:
When tool replacement request inputs
TLCH1 and 2 are closed; automatic start is
prohibited in automatic operation
mode.
When the tool replacement request output
signal goes on, look at the CRT screen, namely ,
the tool life control display screen of COM func–
tion,
make confirmation of the number of the
erouD in which alltools have come to the expi-
e.
ration of useful life,and replace them.
EXAMPLE :
Shown below is a display example in which
lifeof the tools belonging to g-roup r,umber
II11(has been completed.
TOOL LIFE CONTROL
01234 N1234
TOOL GROUP 1 (LIFE7890COUNT)
CO CNTER 7890
TO1O1;
END
T0303 ; END
T0606; END
T0909;
END
Tllll;
END
T1313;
END
the
d.
Tool replacement completion input (TLRST)
and tool replacement completion group num-
ber inputs (TLA1l through TLA21).
These signals are used to indicate the re–
placement completion to the control after the
tool replacement request output (TLCH1,
TLCH2) goes on and the tools whose lifehas
expired are replaced with new ones.
When the tool replacement operation is
completed, set the group number to “tool
replacement completion group number in
(TLAII, TLA12, TLA14, TLA18, TLA21
and put the tool replacement completion
put (TLRST) in the “closed” state.
I
I
0
1;
L
0
;
k
0
0
0
0
L
0
%
TM. 18
T1.A21
I
0
0
0
[
0
0
0
0
0
0
E
G--
)Ut
in-
1
‘#/henthe tool replacement oDeration has
been completed with ‘the tool re~lacement com–
pletion input
II closed, II look at the tool life
control display screen of COM function on
CRT and c-heck to see if the control internal
memory is accepting the completion of the re-
placement operation.
When this operation is
found accepted, perform a reset operation
(depress RESET key on MDI & CRT panel or
“close external reset input ERS) , and the tool
replacement request output goes off and the
displayed alarm code disappears.