Design and function
MIG/MAG welding
48
099-005266-EW501
07.05.2014
Latched mode
Figure 5-18
1. cycle
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Press and hold torch trigger
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Shielding gas is expelled (gas pre-flows)
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Wire feed motor runs at “creep speed”
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Arc ignites when the wire electrode makes contact with the workpiece
Welding current flows
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Wire feed speed increases to the set nominal value
2. cycle
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Release torch trigger (no effect)
3. cycle
•
Press torch trigger (no effect)
4. cycle
•
Release torch trigger
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Wire feed motor stops
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Arc is extinguished after the pre-selected wire burn-back time elapses
•
Gas post-flow time elapses