EWM Phoenix 401 Progress puls MM FKW Operating Instructions Manual page 55

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
099-005323-EW501
21.05.2014
Figure 5-20
NOTE
must be added to the spot time t
start
, spot time starts)
START
A
).
END
Design and function
MIG/MAG welding
.
2
.
END
55