Functional characteristics
TIG welding
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099-M183xB-EW501
18.7.2022
5.4.5
Operating modes (functional sequences)
5.4.5.1
Legend
Symbol
Meaning
Press torch trigger
Release torch trigger
I
Welding current
Gas pre-flows
Gas post-flows
Non-latched
Latched
t
Time
t
Up
Upslope time
t
Down
Downslope time
I
start
Start current
I
end
End-crater current
5.4.5.2
Automatic cut-out
Once the fault periods have elapsed, the automatic cut-out stops the welding process when it has been
triggered by one of two states:
• During ignition
5 s after the start of the welding process, no welding current flows (ignition error).
• During welding
The arc is interrupted for more than 5 s (arc interruption).
