Operating Modes; General Remarks; Symbols And Abbreviations; 2-Step Mode - Fronius VarioSynergic 3400 Instructions De Service

Operating modes

General remarks

Symbols and
abbreviations
I
1
I
2
t
1
t
2
t
3

2-step mode

"2-step mode" is suitable for
-
-
-
Fig.11 2-step mode
Warning! Operating the equipment incorrectly can cause serious injury and
damage. Do not use the functions described here until you have read and
completely understood all of the following documents:
- these Operating Instructions
- all operating instructions for the system components, especially the "Safety
rules"
Press the torch trigger
Welding current phase: uniform thermal input into the base metal, whose tempera-
ture is raised by the advancing heat
No-current phase: Intermediate switch-off of the welding amperage in order to
prevent any local overheating of the base metal
Gas pre-flow time
Gas post-flow time
Spot-welding time
Tacking-work
Short seams
Automatic operation
+
I
t
1
Hold the torch trigger
I
1
26
Release the torch trigger
t
t
2