EWM SATURN MIG 300 PROGRAM - Sequence of Functions 2-Step; Sequence of Functions 4-Step

5 Steuerungsbeschreibung M100 / M110
5/6
5.4.2 Sequence of functions MIG 4-Step
I
m/min
t
t
t
t
Torch Trigger
pressed
(not) pressed
flowing
(not) flowing
Gas
Welding Power
1st Stroke 2nd Stroke 3rd Stroke 4th Stroke
Wire-
Creep- feed
Gas-
Post- flow Time
wire- feed
Wire-
Burn- back
1st and 2nd Strokes
Press and release torch trigger
• Shielding gas flows out of torch
• 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.
3rd and 4th Strokes
Press and release torch trigger
• Wire-feed motor stops.
• The arc is switched off after the preset wire burn-back time.
• Release torch trigger: 4th Stroke, no function
• Gas after-flow time runs.