Design and function
MIG/MAG welding
099-005231-EW501
10.05.2012
53
Special, non-latched with superpulse
t
t
t
I
1.
2.
P
A
P
B
P
END
P
START
Figure 5-21
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
for the time t
start
).
• Slope on main program P
A
.
• Start the super pulse function beginning with main program P
A
:
The welding parameters change at the specified times between main program P
A
and the reduced
main program P
B
.
Step 2
• Release torch trigger
• Super pulse function is ended.
• Slope to end program P
END
for the time t
end
.
• WF motor stops.
• Arc is extinguished after the preselected wire burn-back time expires.
• Gas post-flow time elapses.
