5 Steuerungsbeschreibung M100 / M110
5/5
5.4 Sequence of functions - Operating modes
5.4.1 Sequence of functions MIG 2-Step
t
t
t
t
Torch Trigger
pressed
(not) pressed
flowing
(not) flowing
I
m/min
Gas
Welding Power
1st Stroke 2nd Stroke
Wire-
Creep- feed
Gas-
Post- flow Time
wire- feed
Wire-
Burn- back
1st Step
Press and hold torch trigger
•
Shielding gas flows out
• Wire feed motor runs at “Creep speed“
• The arc strikes once the welding wire hits the workpiece, welding current flows.
• Change over to pre-selected wire feed speed.
2nd Stroke
Release torch trigger
• Wire-feed motor stops.
• The arc is switched off after the preset wire burn-back time.
Advantage: Prevents the wire becoming stuck in the weld-pool.
• Gas after-flow time runs.
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