EWM Phoenix 401 Progress puls MM FKW Operating Instructions Manual page 80

Design and function
TIG welding
Non-latched mode
Selection
•
Select non-latched operating mode
Step 1
•
Press and hold torch trigger.
•
Shielding gas is expelled (gas pre-flows).
The arc is ignited using liftarc.
•
Welding current flows with pre-selected setting.
Step 2
•
Release torch trigger.
•
Arc is extinguished.
•
Gas post-flow time elapses.
Special, non-latched
Selection
•
Select non-latched special mode
Step 1
•
Press and hold torch trigger
•
Shielding gas is expelled (gas pre-flows)
The arc is ignited using liftarc.
• Welding gas flows with pre-selected setting in start program "P
• After the "tstart" ignition current time elapses, the welding current rises with the set upslope time "tS1"
to the main program "P
Step 2
•
Release torch trigger.
• The welding current reduces with the downslope time "tSe" to the end program "P
• After the end current time "end" elapses, the arc will extinguish.
•
Gas post-flow time elapses.
80
Figure 5-42
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Figure 5-43
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A
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START
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END
099-005323-EW501
21.05.2014