
23. AUTOMATIC OPERATION
B–63832EN/01
NC FUNCTION
222
Automatic operation is stopped after executing the M00 (program stop)
commanded block. When the optional stop switch on the operator’s panel
is turned on, the M01 (optional stop) commanded block is executed and
the automatic operation stops.
The automatic operation can be restarted by the cycle start button.
The CNC is reset after executing the M02 (end of program) or M30 (end
of tape) commanded block.
During program operation, when the block with a preset sequence number
appears, operation stops after execution of the block, to a single block stop
status. The sequence number can be set by the operator through the MDI
panel. This function is useful for program check, etc., because program
can be stopped at optional block without changing the program.
The CNC can be brought to an automatic operation hold status by pressing
the feed hold button on the operator’s panel. When feed hold is
commanded during motion, it decelerates to a stop.
Automatic operation can be restarted by the cycle start button.
When feed hold is commanded during thread cutting cycle by G76 or
G78, the tool rapidly relieves to the cycle start point, like in the final
chamfering of the thread cutting cycle. Thread cutting cycle restarts by
cycle start command.
Without this function, if feed hold is commanded during thread cutting,
it returns and stops at the position where thread cutting circle was started
after thread cutting is ended.
Stop point
Rapid
traverse
Rapid traverse
Chamfering
Ordinary cycle
Move with feed hold
Feed hold was applied here
The automatic operation can be ended in a reset status by the reset button
on the MDI panel or by the external reset signal, etc. When reset is
commanded during motion, it decelerates to a stop.
23.5
AUTOMATIC
OPERATION STOP
23.5.1
Program Stop
(M00, M01)
23.5.2
Program End
(M02, M30)
23.5.3
Sequence Number
Comparison and Stop
23.5.4
Feed Hold
23.5.5
Thread Cutting Cycle
Retract (T series)
T series
23.5.6
Reset