Design and function
MIG/MAG welding
099-005407-EW501
8.2.2022
45
5.3.9 rootArc
Short arc with perfect weld modelling capabilities for effortless gap bridging, especially for root welding
Figure 5-29
• Reduced spatter compared to standard short arc
• Good root formation and secure sidewall fusion
• Manual and automated applications
Unstable arc!
Welding current cables that are not fully unrolled can cause faults in the arc (flickering).
• Fully unroll welding current cables, torch hose packages and, if applicable, intermediate hose
packages. Avoid loops!
5.3.10 Operating modes (functional sequences)
There are optimum pre-sets for welding parameters such as gas pre-flow and burn back, etc. for
numerous applications (although these can also be changed if required).
5.3.10.1 Explanation of signs and functions
Symbol Meaning
Press torch trigger
Release torch trigger
Tap torch trigger (press briefly and release)
Shielding gas flowing
I
Welding output
Wire electrode is being conveyed
Wire creep
Wire burn-back
Gas pre-flows
Gas post-flows
Non-latched
Special, non-latched
Latched
Special, latched
t
Time
P
START
Ignition program
P
A
Main program
P
B
Reduced main program
P
END
End program
t2
Spot time
