Starting Current >100% (Hotstart) - Fronius MagicWave 190 Operating Instructions Manual

Polarity
-
Polarity, set to DC-
Setting range: DC- / DC+
Factory setting: DC-
Starting current Advantages
> 100 % (Hot- -
Start) -
-
I (A)
150
100
Example with a starting current > 100% (HotStart)
DC-
Improved ignition properties, even when using electrodes with poor ignition properties
Better fusion of the base material in the start-up phase, meaning fewer cold-shut de-
fects
Largely prevents slag inclusions
(1)
(2)
(3)
0,5 1
+ +
Polarity, set to DC+
(1) Starting current time
0-2 s, factory setting 0.5 s
(2) Starting current
0-200%, factory setting 150%
(3) Main current = pre-set welding cur-
rent I
1
Mode of operation
during the specified starting current time
(1), the welding current I
t (s)
the starting current (2).
1,5
The starting current time is set in the Setup
menu.
DC+
-
(3) is increased to
1
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