Functional characteristics
MIG/MAG welding
32 Item No.: 099-004838-PRA01
5.2.3.5 Spots
t
t
t
I
1. 2.
P
A
P
END
P
START
Figure 5-8
The start time t
start
must also be calculated at spot time t
2
. The start and spot times are set in
the "Program steps mode" menu.
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 is flowing (start
program P
START
, spot time starts).
• Slope on main program P
A
.
• After the set spot time elapses, slope goes to end program P
END
.
• WF motor stops.
• Arc is extinguished after the pre-selected wire burn-back time elapses.
• Gas post-flow time elapses.
Step 2
• Release torch trigger
Releasing the torch trigger (step 2) interrupts the welding process even if the spot time has
not yet elapsed (slope to end program P
END
).
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