3 MIG/MAG WELDING
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© ESAB AB 2020
Inductance
Higher inductance produces a more flowing weld and less spatter. Lower inductance
produces a harsher sound and a stable, concentrated arc.
- Setting of inductance performed in the SETTINGS MENU.
Gas pre-flow
The gas pre-flow time is the time during which the shielding gas flows before the arc is
struck.
- Setting of gas pre-flow time performed in the SETTINGS MENU.
Burnback time
The burnback time is a delay between when the wire feed unit starts to brake the wire until
the power unit shuts off the welding current. Too short a burnback time leaves a long piece of
filler wire projecting after welding has stopped, with resulting risk of the wire freezing into the
solidifying weld pool. On the other hand, too long a burnback time reduces the stickout to
such an extent that there is a risk of the arc striking from the welding torch contact tip when
welding is next started.
- Setting of burnback time performed in the SETTINGS MENU. The burnback time setting is
only available when SCT is OFF. This will be the case if SCT setting = 1, or SCT setting = 0
and the chosen synergic line has SCT set to OFF.
SCT
SCT is a function that gives small repeated short circuits at the end of the welding until the
wire feeding has totally stopped and the contact with the workpiece has been broken.
The following settings exist: SYN = The value (ON/OFF) is determined by the synergy line
(default option).
OFF = SCT is OFF
ON = SCT is ON
Do not use SCT with cored wire.
Start parameter R
Start parameter R enables finetuning of the electric arc during the start moment when
welding. The parameter can be set from 8.0 to 60.0, in steps of 0.25. Synergy must be OFF
for this parameter to be available (which means that the chosen method is Short Arc).
Gas post-flow
The gas post-flow function controls the time during which shielding gas continues to flow
after the arc has been extinguished.
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