Fronius MagicWave 1700, Руководство по эксплуатации

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46
Further explana-
tions of the “Eln”
characteristic-
selection
function
(continued)
The anti-stick function can be activated and deactivated in the “Set-up menu: Level 2”
(see the section headed: “Set-up menu: Level 2”).
As the arc becomes shorter, the welding voltage may drop so far that the rod electrode
will tend to “stick”. This may also cause “burn-out” of the rod electrode.
Electrode burn-out is prevented if the anti-stick function has been activated. If the rod
electrode begins to stick, the power source immediately switches the welding current
off. After the rod electrode has been detached from the workpiece, the welding
operation can be continued without difficulty.
Anti-stick
function
Where the welding current (I
1
) is permanently set, the operating point may migrate along
the characteristics , and , depending on the welding voltage at that moment in
time. The welding voltage U is dependent upon the length of the arc.
If the arc length changes, e.g. in accordance with the load line , the resulting operating
point will be the point where the corresponding characteristic , or intersects with
the load line .
Applies to characteristics and : Depending upon the welding voltage (arc length),
the welding current (I) will also become either smaller or larger, even though the value
set for I
1
remains the same.