47
Hotstart function
(continued)
I (A)
t (s)
0,5 1 1,5
Hti
I
H
HCU
200
300
Example of „Hotstart“ function
Legend
Hti ........ Hot-current time,
0 - 2 s, factory setting: 0.5 s
HCU .... Hot-start current, 0 - 200%,
factory setting 150 %
I
H
.......... Main current = Pre-set welding
current
Mode of operation
During the specified hot-current time (Hti),
the welding current is increased to a
certain value. This value (HCU) is higher
than the selected welding current (I
H
).
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.
The anti-stick function can be activated and deactivated in the set-up parameters in „Set-
up menu: level 2“.
Anti-stick func-
tion
HCU > I
H
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