section 5
5.2
sequence Description (con't.)
7 - not Ready state
During the Not Ready State (fault state) the Programmable Logic Controller (PLC) is sending a fault signal to the cutting
machine.
It is possible to test gas flows in this state. The HF unit can be run for test purposes in this state.
Time delay to HF done
3 start Pilot Arc
Cut Current
Flows
4 cutting
Arc
2 turn power
source on
Start
reset
Start
reset
0 Ready
Time out HF
7 not ready
(fault state)
Faults
detected
Startup
Start signal off
or arc out
5 Priority
postflow
Figure 5-2 Plasma sequence Flow Diagram
Preflow done
1 Preflow
Start
Start signal on
reset
Postflow done
All OK
Arc-out
no
Startup
reset
Priority postflow
done
303
tRoUBLesHootinG
Restart
requested
6 Final
postflow