Design and function
MMA welding
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04.06.2020
5.3.4 Hotstart
The function hot start ensures a secure igniting of the arc and a sufficient heating to the still cold parent
metal at the beginning of the welding process. The ignition takes place here with increased current (hot
start current) over a certain time (hot start time).
For parameter setting,
> see 5.3.6 chapter
.
A = Hot start current
B = Hot start time
C = Main current
I =
Current
t =
Time
Figure 5-35
5.3.5 Antistick
The Antistick feature prevents the electrode from annealing.
Should the electrode stick despite the Arcforce feature, the machine
automatically switches to the minimum current within approx. one se-
cond. This prevents the electrode from annealing. Check the welding
current setting and correct for the welding task in hand.
Figure 5-36
5.3.6 Expert menu (MMA)
The Expert menu has adjustable parameters stored that don’t require regular setting. The number of pa-
rameters shown may be limited, e.g. if a function is deactivated.
2s
2s
Figure 5-37
Display
Setting/selection
Hotstart current
Hotstart time