
5.AUTOMATIC OPERATION B-63943EN-1/02
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5.6 PROGRAM RESTART
Overview
When the tool is broken during automatic operation, or when a
machining operation interrupted by a holiday is to be restarted after
the holiday, you can restart machining from a desired block by
specifying the sequence number of the block or the number of blocks
from the beginning of the program to the block where machining is to
restart.
This function can also be used as a high-speed program check
function.
P type: Restart after a tool is broken down
Q type: Restart after the power is turned off (after a holiday, etc.) or
after emergency stop is canceled
Explanation
- Outputting M, S, T, and B (second auxiliary function) codes on the program
restart screen
By setting bit 7 (MOP) of parameter No. 7300, the M, S, T, and B
(second auxiliary function) codes can be output after a block where
the program is to restart is searched for.
1 Before a movement to the machining restart point
<1> The last M, S, T, and B (2nd auxiliary function) codes can
be output to the PMC automatically.
The last S code is output as the maximum spindle speed if
the S code is specified together with G92 in one block;
otherwise, the S code is output as a specified spindle speed.
On the program restart screen, only the S code specified last
is indicated regardless of whether it is specified together
with G92 in one block or not.
<2> All M codes sampled during the search for the block where
the program is to restart and the last S, T, and B (second
auxiliary function) codes can be output to the PMC
automatically.
Up to 35 M cods can be sampled. If there are more than
35 M codes to be sampled, the latest 35 M codes are output
to the PMC.
<1> or <2> above can be selected by setting bit 6 (MOA) of
parameter No. 7300.
2 Until the machining restart point is reached (over store mode)
On the program restart screen, you can specify M, S, T, and B
(second auxiliary function) codes through MDI key input while
maintaining the MEM mode or DNC mode.