
5.AUTOMATIC OPERATION B-63783EN-1/01
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Output of M, S, T, and B (second auxiliary function) codes for program restart
After a block to be restarted is found, M, S, T, and B (second auxiliary
function) codes can be output by setting bit 3 (MOP) of parameter No.
7602.
1. Before moving to the machining restart position
(1) The final M, S, T and B codes can be automatically output to
the PMC. If the final S code is specified to the same block
containing an G92, that S code is output as the maximum
spindle speed. Other S codes are output as the programmed
spindle speed. However, note that only the final programmed
S code is displayed in the program restart screen regardless
of whether it is specified in the same block as G92.
(2) All sampled M codes and the final S, T and B codes can be
automatically output to the PMC during searching of the
program execution restart block. However, note that only up
to 35 M codes can be sampled. If the number of M codes to
be sampled exceeds 35, the latest 35 M codes are output to
the PMC.
Whether (1) or (2) is to be performed is switched by bit 6 (BOA)
parameter No. 7620.
2. Until arrival at the machining restart position
You can specify M, S, T and B codes in the program restart screen
from the MDI panel in the MEMORY or TAPE modes.
Signal
Program Restart Signal SRN <G002#5>
[Classification] Input signal
[Function] Selects program restart.
[Operation] When the program restart signal is set to 1, and a block to be restarted is
found by specifying its sequence number or the number of blocks (from
the start of the program to the block to be restarted), the screen display
switches to the program restart screen. When the program restart signal
is set to "0", and automatic operation is activated, the tool is moved
back to the machining restart point at dry run speed along the axes one
by one in the sequence specified in parameter No. 7110. When the tool
is set to the restart point, machining restarts.
Program restart under way Signal MSRN <F002#5>
[Classification] Output signal
[Function] Indicates the program is being restarted.
[Output condition] The program restart under way signal becomes "1" when:
- The program restart signal is set to "0" after the LCD screen
changes to the program restart screen.
The signal is set to "0" when:
- The program restart sequence ends (the tool has been moved to the
restart point on all controlled axes).