Average Value Pulse Welding - EWM T 4.00 - AC/DC Comfort 2.0 Operating Instruction

Welding procedure
MMA welding
4.2.7

Average value pulse welding

Average value pulsing is a variant of pulsing, with the particularity that the power source will always
maintain the preset average value. This makes this method especially suitable for welding according to
welding procedure specifications.
Average value pulse welding means that two currents are switched periodically, a current average value
(AMP), a pulse current (Ipuls), a balance (
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.
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 = bAL x Tpuls; e.g. 30% x 1 s = 0.3 s
Selection
60
) and a frequency ( ) having been defined first. The
Figure 4-49
Figure 4-50
099-00T400-EW501
21.10.2016