YASKAWA yasnac lx3 - Page 219

Notes :
1. Before letting the tool move to the PROGRAM
RESTART position by motion along the X and
Z axes in succession, be sure to check the
tc,ol for freedom from interference with the
workpiece.
If there is a possibility of
a tool inter-
ference with the workpiece, first, move the
tc,ol in the MANUAL mode to a position from
where it can move without interference, be–
fen-e bringing the tool to the PROGRAM RE-
START position in the AUTOMATIC MODE.
Fcr the manual tool motion,
turn on the MAN-
UAL ABSOLUTE switch. If this switch is not
turned on, the PROGRAM RESTART position
will be shifted by the distance covered by the
manual motion.
For the manual motion re-
auired to avoid tool coflision
on the workpiece
as
is
(i)
( ii)
(iii)
(iv)
(v)
(vi)
?
‘.. If
- described above, the following proced~re
recommended.
Turn on the SINGLE BLOCK switch.
Push the CYCLE START key
to move the
tool along the X-axis.
Check the position.
Push the CYCLE START key
to move the
tool along the Y-axis.
Check the tool position for the PROGRAM
RESTART position.
Turn off the SINGLE BLOCK switch, and
push the CYCLE START key
to restart
the machining cycle.
a reset process is executed after the dis-
play of the PROGRAM RESTART data by the
keying of Q, u rlZ ~ , CURSOR
~ the data
is cancelled. When this happens, make the
PROGRAM RESTART data display keying
again.
3.
4,
5.
6.
7.
8.
9,
10.
11.
12,
While the NC is making the preparation for
PROGRAM RESTART after the keying of
Q,~.3C, CURSOR ~ , do not push the
FEED HOLD key, turn the MODE switch, or
make other manipulations, If these mani-
pulations are made, make the PROGRAM
RESTART data display keying again.
When the tool offset values are changed to
compensate for the new tool, etc. , the PRO-
GRAM RESTART position is, needless to say,
shifted accordingly.
If the PROGRAM RESTART switch is on,
the CYCLE START key is ineffective.
In principle, do not move the machine with
the MACHINE LOCK switch turned on, before
and after pushing the PROGRAM RESTART
switch.
If the block specified by Q,
❑ ❑ 3 ❑ , CUR-
SOR ~ is not found, alarm code” 120” is
displayed,
Only those M and T commands which are out-
put to the outside are displayed as PROGRAM
RESTART data.
Those M commands (M90 - M109) and T com-
mands which are internally processed are
not displayed.
Although not common with lathe operation,
sometimes the power supply is turned off
after interrupting the automatic cycle, and
is turned on again before restarting the
automatic cycle.
In this case, be sure to
return the tool to the reference point once,
before starting the PROGRAM RESTART
process.
In this case, be sure to start the PROGRAM
RESTART process even with those programs
in which work coordinate system is used.
During the time after the display of the
PROGRAM RESTART data till the start of the
return motion to the PROGRAM RESTART
position, the machine cannot be moved in the
MDI mode.
If the machine is returned to the
reference position, alarm code “ 124” will be
displayed.
Blocks in complex canned cycle programs for
finish shapes cannot be specified by
Q,[~rTl~,
CURSOR ~ .
When the block in tool nose radius compen-
sation is specified by Q, four digits, and
CURSOR
key, the machine cannot be
moved in the MDI mode after the display of
the PROGRAM START data,
In this case,
restart from the block before
making tool radius compensation.
211