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Fronius TransPocket 125 VRD Bedienungsanleitung Seite 63

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3
HotStart function
I (A)
120A
90A
Example: 90 A was set on the adjuster.
NOTE!
If the welding current is set to 120 A or higher, the Hot-Start current is limited to 160
A.
Anti-stick func-
As the arc becomes shorter, the welding voltage may drop so far that the rod electrode will
tion
tend to stick. This may also cause the rod electrode to burn out.
The anti-stick function prevents the electrode from burning out. If the rod electrode begins
to stick, the power source switches the welding current off after 1.5 seconds. After the rod
electrode has been lifted off the workpiece, the welding process can be continued without
any problems.
Carry out welding
0,5 s
1 s
The HotStart current is 90 A + (90 A/3) = 120 A
Benefits:
-
Improved ignition, even when using
electrodes with poor ignition properties
-
Better fusion of the base material du-
ring the start-up phase, meaning fewer
cold-shut defects
-
Largely prevents slag inclusions
How it works:
The set welding current is increased a third
within half a second.
t
1,5 s
63

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