EWM drive 4X IC HP D200 Operating Instructions Manual page 52

Design and function
MIG/MAG welding
Spot welding
The ignition time t
1st cycle
• 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
• Slope to main program P
• After the set spot time elapses, slope goes to end program P
• Wire feed motor stop welding.
• Arc is extinguished after the pre-selected wire burn-back time elapses
• Gas post-flow time elapses.
2nd cycle
• 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
52
must be added to the spot time t
start
A
).
END
Figure 5-26
.
2
, spot time starts)
START
.
END
099-005508-EW501
04.04.2016