
OPERATION
4. AUTOMATIC OPERATION
B–63194EN/02
466
Under any of the following conditions, P–type restart cannot be
performed:
⋅ When automatic operation has not been performed since the power
was turned on
⋅ When automatic operation has not been performed since an
emergency stop was released
⋅ When automatic operation has not been performed since the
coordinate system was changed or shifted (change to an external
workpiece origin offset value)
The block from which the program is to be restarted need not be that block
executed when operation was interrupted. The program can be restarted
from any block. When P–type restart is performed, the restart block must
use the same coordinate system as the block executed when operation was
interrupted.
When single–block mode is set during movement to the restart position,
operation stops every time the nozzle completes movement along an axis.
When operation is stopped in single–block mode, MDI intervention
cannot be performed.
During movement to the restart position, manual intervention can be used to
perform a return operation for an axis for which it has not yet been performed.
A return operation cannot be performed again on axes for which a return has
already been completed.
Never perform reset during the period between the start of a search for
restart and the restart of processing. Otherwise, restart must be performed
again from the first step.
Regardless of whether processing has started, manual absolute mode
must be set when manual operation is performed.
If no absolute–position detector (absolute pulse coder) is provided, before
restart, always perform reference position return after turning on the
power.
During search operation, neither a dwell command nor laser output
command is executed.
(1)The program executed just before can be restarted.
(2)The program executed before the power was turned off cannot be
restarted when the power is turned on again.
(3)For programs that are to be restarted, it is impossible to change a work
coordinate system.
(4)Move commands (G27, G28, G29, G30, and G53) that use the
machine coordinate system are ignored during program restart.
(5)No program can be restarted from a midpoint of a spatial arc
interpolation (G12) command.
(6)A program cannot be restarted from a block in a subprogram.
(7)All manual operations must be performed with “manual absolute”
turned on no matter whether machining has not been started or has
been finished.
Limitations
D P–type restart
D Restart block
D Single block
D Manual intervention
D Reset
D Manual absolute
D Reference position return
D Dwell command and
laser output command
D Laser specification