EWM alpha Q 352 puls MM Operating Instructions Manual page 57

Non-latched mode
Step 1
•
Robot issues the start signal to the power source.
•
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 pre-selected wire speed (main program P
Step 2
•
Robot issues the stop signal to the power source.
•
WF motor stops.
•
Arc is extinguished after the pre-selected wire burn-back time elapses.
•
Gas post-flow time elapses.
099-005366-EW501
31.07.2014
Design and function
Definition of MIG/MAG welding tasks
Figure 5-22
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A
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