Design and function
MMA welding
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299-020200-TWD01
14.07.2017
5.4.5
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
parameter 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 5-26
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
For parameter setting, > see 5.4.6 chapter.
5.4.6
Expert menu (MMA)
The Expert menu has adjustable parameters stored that don’t require regular setting. The number of
parameters shown may be limited, e.g. if a function is deactivated.
EXIT
ENTER
4 s
4 s
Figure 5-27
Display
Setting/selection
Hotstart current
