EWM alpha Q Progress drive 4D EF Operating Instructions Manual page 57

Latched mode
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.
•
Change over to pre-selected WF speed (main program P
Step 2
•
Release torch trigger (no effect)
Step 3
•
Press torch trigger (no effect)
Step 4
•
Release torch trigger
•
WF motor stops.
•
Arc is extinguished after the preselected wire burn-back time expires.
•
Gas post-flow time elapses.
099-005459-EW501
17.12.2015
Design and function
Figure 5-26
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A
MIG/MAG welding
57