
B-64663EN/01 LASER FUNCTION 4.ASSIST GAS
- 59 -
Signal
- Assist gas select signals
AG1,AG2,AG3 <F222#0,#1,#2>
[Classification] Output signal
[Function] Notifies the PMC of the assist gas type to be selected.
[Output condition] When the specified G32 is executed, the CNC outputs an assist gas
select signal (AG1, AG2, or AG3).
When G32 P_; is specified, the signal corresponding to the number
specified in address P is set to 1. When P2 is specified, for example,
assist gas select signal AG2 is set to 1.
When G32 L_; is specified, the value set in the data area for setting
the machining conditions is read and the corresponding signal is
output as described above.
The PMC should read the assist gas select signal (AG1, AG2, AG3)
and open and close the assist gas valve corresponding to the output
signal.
The assist gas select signals (AG1, AG2, AG3) can be used to output
codes when bit 0 of parameter No.15001 is set accordingly. When
code output is selected, a choice of up to seven gas types becomes
available.
Signals Assist gas selection
number
AG3 AG2 AG1
0: Non selection 0 0 0
1 0 0 1
2 0 1 0
3 0 1 1
4 1 0 0
5 1 0 1
6 1 1 0
7 1 1 1
- Assist gas ready signals
AGRDY <G221#7>
[Classification] Input signal
[Function] Monitors whether the external assist gas control unit operates
normally.
[Operation] After an interval corresponding to the assist gas setting time, starting
from the output of an assist gas select signal (AG1, AG2, or AG3), the
CNC starts monitoring the assist gas ready signal (AGRDY).
The assist gas ready signal (AGRDY) should be set to 1 before the
CNC starts monitoring it. If the signal is not set to 1 before monitoring
starts, the assist gas not ready alarm is issued.
If an error occurs in the assist gas control unit during operation, set the
assist gas ready signal (AGRDY) to 0. This generates an alarm and
stops the operation.