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2. Monitor
2.5 Resuming the Program
I-59
(2) Restart type 2
When a machining program, which differs from the machining program to be restarted, has been
operated in the memory or tape mode prior to the restart search of the machining program to be
restarted, and when the coordinate systems applying during the previous automatic operation and the
systems applying during machining restart are to be changed.
The operating sequence for type 2 is the same as that for type 1 although before the restart search all
the settings of the coordinate systems must be made before the machining program is operated. The
main program to be restarted must be searched for just before executing restart start.
Start
Set by MDI the coordinate systems applying
when the restart program is to start.
Move the axes to their program restart
positions.
With tape operation, find the start of the
tape.
Search the block from which machining is to
restart using the type 2 method.
(Refer to 2.5.2 Restart Search Operations)
Set the program restart switch (PLC signal) ON.
Move the axes to the restart return positions. (Refer to
2.5.3 Restart Position Return System)
Issue the M, S, T or B manual numerical command.
(Refer to 2.5.4 Manual Numerical Commands with
Program Restart)
Set the program restart switch to OFF.
Return to the automatic mode.
Press the cycle start button.
End
Machining
program
Machining
suspended
Machining
restart
It will not be possible to restart
machining properly when the axxes are
not located at the positions applying to
program start in cases where the program
head command is an incremental
command or a G92 command.
O
perations on PROGRAM RESTART screen
Upon completion of the restart search, the M, S, T
and B functions, the restart distance to go and the
restart positions will be displayed.
"RP" is displayed when the axes have finished
moving to the restart position and the subsequent
axes, do not move in either the "+" or "-" direction.
Operation of
different program
Turn ON the power and return all the axes
to their reference points.
Search the head of the program.
For type A, the program No. cannot be omitted.
For type B, the program No. cannot be input.