FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

OPERATION
4. AUTOMATIC OPERATION
B–62754EN/01
490
When the cycle start switch on the machine operators panel is
pressed while the feed hold LED is on, machine operation
restarts.
b.
Terminating memory operation
Press the
RESET
key on the MDI panel.
Automatic operation is terminated and the reset state is entered.
When a reset is applied during movement, movement decelerates
then stops.
After memory operation is started, the following are executed:
(1)A one–block command is read from the specified program.
(2)The block command is decoded.
(3)The command execution is started.
(4)The command in the next block is read.
(5)Buffering is executed. That is, the command is decoded to allow
immediate execution.
(6)Immediately after the preceding block is executed, execution of the
next block can be started. This is because buffering has been executed.
(7)Hereafter, memory operation can be executed by repeating the steps
(4) to (6).
Memory operation can be stopped using one of two methods: Specify a
stop command, or press a key on the machine operators panel.
The stop commands include M00 (program stop), M01 (optional
stop), and M02 and M30 (program end).
There are two keys to stop memory operation: The feed hold key and
reset key.
Memory operation is stopped after a block containing M00 is executed.
When the program is stopped, all existing modal information remains
unchanged as in single block operation. The memory operation can be
restarted by pressing the cycle start button. Operation may vary
depending on the machine tool builder. Refer to the manual supplied by
the machine tool builder.
Similarly to M00, memory operation is stopped after a block containing
M01 is executed. This code is only effective when the Optional Stop
switch on the machine operators panel is set to ON. Operation may vary
depending on the machine tool builder. Refer to the manual supplied by
the machine tool builder.
When M02 or M30 (specified at the end of the main program) is read,
memory operation is terminated and the reset state is entered.
In some machines, M30 returns control to the top of the program. For
details, refer to the manual supplied by the machine tool builder.
When Feed Hold button on the operators panel is pressed during memory
operation, the tool decelerates to a stop at a time.
Explanation
Memory operation
Stopping and terminating
memory operation
D Program stop (M00)
D Optional stop (M01)
D Program end
(M02, M30)
D Feed hold

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