At the execution of the part program speci–
(4) Input /output signals for tool life control
fied with tool life control, the tool number
in the current group and the offset number
The following input /output signals are pro-
beiniz used by “TG 791” command may be
vialed for the control:
shown in COM display on CRT screen.
In the above program, ~ shows that
Table 2.24
“T0191” specifies the machining by “T0606”
in the registered tool information.
( ~’ shows that “T0190” becomes “T0600.” )
Signal Name
TOOL LIFE CONTROL
01234 N1234
TOOL GROUP 1
(LIFE 7890
COUNT)
COUNTER
1234
TO1O1 ; END
T0303 ; END
T0606 ;
CUTTING
T0909 ;
Tllll ;
T1313 ;
RD Y
TLSKP
TLCH
TLAII
TLA12
TLA 14
TLA 18
TLA21
Description
Tool skp input.
Tool replacement request output.
Tool replacement completion input.
Tool replacement completion group
number input (BCD code),
Fig. 2.70 Example A of Display of Tool No. and
The operation for each input /output depends
Offset No. of Current Execution
TOOL LIFE CONTROL
01234 N1234
TOOL GROUP 12 [HFE 7890 MIN.J
TIMER
1234 MIN.
T0404 ; END
T0808 ; CUTTING
T101O ;
T1212 ;
T1414 ;
RD Y
~ shows that “T1291” command specifies
the machining by “T0808” in the registered
tool information.
(~’ shows that
11T129011 becomes !1T0800°
command. )
Fig. 2.71 Example B of Display of Tool No. and
Offset No. of Current Execution
b.
a.
on the operation panel and external sequences
provided by the machine builder. For de-
tails, refer to the instruction manual offer-
ed by the machine builder. The following
describes the control function in response
to the input /output signals to facilitate the
understanding of the tool life control feature.
TLSKP :
Tool skip input
‘An~,,,,* ,
This is the input signal for replacing the
tool before the registered lifeof it expires.
When TLSKP input is “closed” during the
time from the output of the tool registered
by group number
“1 to 19” as T command to
the output of another T command, the con–
trol outputs the T command of the next
tool registered in the group at the time of
the next T command output.
TLCH :
Tool replacement request output
YASNAC
I
I
P-a-
127