Design and function
MIG/MAG functional sequences / operating modes
5.6.2
Non-latched operation
Step 1
•
Press and hold torch trigger.
•
Shielding gas is expelled (gas pre-flows).
•
Wire feed motor runs at "creep speed".
•
Arc ignites after the wire electrode makes contact with the workpiece; welding current flows.
•
Changeover to the pre-selected wire speed after the set ignition time (tZn).
Step 2
•
Release torch trigger.
•
WF motor stops.
•
Arc is extinguished after the pre-selected wire burn-back time elapses.
•
Gas post-flow time elapses.
48
Figure 5-10
099-005172-EW501
21.09.2011
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