Functional characteristics
MMA welding
099-00T406-EW501
13.07.2017
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4.2.1.2 Antistick
The Antistick feature prevents the electrode from annealing.
Should the electrode stick, the machine automatically switches to the
minimum current within approx. one second. This prevents the electrode
from annealing. Check the welding current setting and correct for the
welding task in hand.
Figure 4-25
4.2.2
Average value pulse welding
Average value pulse welding means that two currents are switched periodically, a current average value
(AMP), a pulse current (Ipuls), a balance (
) and a frequency (
) having been defined first. The
predefined ampere current average value is decisive, the pulse current (Ipuls) is defined by the
pa-
rameter as a percentage of the current average value (AMP). The pulse pause current (IPP) requires no
setting. This value is calculated by the machine control, so that the welding current average value (AMP)
is maintained at all times.
Figure 4-26
AMP = Main current; e.g. 100 A
IPL = Pulse current = IP1 x AMP; e.g. 170% x 100 A = 170 A
IPP = Pulse pause current
Tpuls = Duration of one pulse cycle = 1/FrE; e.g. 1/1 Hz = 1 s
bAL = Balance
Selection
Figure 4-27
