YASKAWA yasnac lx3 - Page 217

5.2.5 MANUAL Interruption pOINTRETLJRN+
With this function, automatic machining cycles
can be interrupted and the tools can be retract–
ed for workpiece measurement, chip removal,
etc. , and then, the tools can be brought back
to the interruption point.
RETURN MOTION TO
INTERRuPTION POINT
L
~
MANUAL
P
L,
RETRACTION
‘\
~--
AUTO-MANUAL
SWITCH POINT
The procedure for this function is as follows.
(1) Interrupt the automatic machining cycle by
i~ny of the following methods.
(i) Turning on the SINGLE BLOCK switch
(ii) Pushing the FEED HOLD key
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Turn on the MANUAL mode.
Retract the tool by manual control.
Measure the workpiece, remove chips, or
perform any other required operations.
Note:
When the mode is switched from AUTO
to MANUAL, the spindle conditions, etc.
]may change.
For these details, refer to
the operation manual of the machine tool
prepared by the machine builder.
Turn on the MANUAL INTERRUPTION POINT
RETURN switch.
Turn on the MANUAL JOG mode.
l?ush the relevant one or two of the JOG
keys (+X, -X, +Z, -Z) . The tool moves
~owards the interruption point at the pre–
Set speed, and stops upon arrival at the
interruption point.
Turn off the MANUAL INTERRUPTION
I?OINT RETURN switch.
Turn the AUTO mode, and push the CYCLE
START key to restart the automatic machin-
ing cycle.
Notes :
1’ When the tool is at the interruption point,
the JOG keys are ineffective, unless the
MANUAL INTERRUPTION POINT RETURN
switch is turned off.
2, When the RESET key on the MDI & CRT pan-
el is pushed or an external reset input is
received after the switching from the AUTO
to MANUAL Mode, the MANUAL INTERRUP-
TION POINT RETURN function becomes
ineffective thereafter.
3. When the tool has been manually retracted
after a switching from the AUTO to MANUAL
mode, then, the switch is returned to AUTO
again, and thereafter, the switch is set again
to MANUAL for manual tool motion, the point
where the mode switch has been switched
from AUTO to MANUAL last is regarded as
the INTERRUPTION point.
5. 2.6 PROGRAM RESTART+
With this function, when automatic machining cy-
cles are interrupted due to tool breakage, chip
entanglement, etc. ,
by the EMERGENCY STOP
button, the automatic machining cycles can be
restarted, not from the beginning of the program,
but from the beginning of the interrupted block.
(1) OPERATION PROCEDURE
a. Interrupt the automatic machining cycle by
one of the following two functions.
(i) Emergency stop
(ii) Resetting
b,
c.
d.
When the machine has been stopped by the
emergency stop function, turn on the servo
power supply and reset the ALARM code to
make further machine motion possible.
Turn on the MANUAL mode and retract the
tool .
Replace the broken tool, remove chips, etc.
to prepare the machine for further operation.
When the tool is replaced, the offset values
may have to be corrected.
Move the tool by manual control to return it
to the start point of the part program.
However, with a program in which G 50T
❑ H 3 ❑ is used, the tool need not be re-
turned to the start point, and may be left
at the position where chip removal, etc.
has been made.
209