Fronius VarioSynergic 3400 Instructions De Service page 98

Interval 2-step/4- This mode can be used for light-gauge sheets (for bridging air gaps).
step mode
As the welding wire is not fed continuously, the weld pool can cool down during the
intervals. Any local overheating, which can lead to the base metal being melted through,
is largely avoided.
The intervals can be altered using the interval welding time t1 adjuster (18) and interval
pause t2 adjuster (19).
Fig.14a Interval 2-step mode
Fig.14b Interval 4-step mode
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