Pulse Welding; Average Value Pulse Welding - EWM T5.00-AC/DC Comfort 3.0 Operating Instructions Manual

Functional characteristics
TIG welding

5.1.11 Pulse welding

The following pulse types can be selected:
• Average value pulsing (TIG AC up to 5 Hz and WIG DC up to 20 kHz)
• Thermal pulsing (TIG AC or TIG DC)
• Automated pulsing (TIG DC)
• AC special (TIG AC)

5.1.12 Average value pulse welding

A special feature with average value pulses is that the power source will always maintain the preset
average value. This makes this method especially suitable for welding according to welding procedure
specifications.
For average value pulsing, switching takes place periodically between two currents whereby an average
current value (AMP), a pulse current (Ipuls), pulse balance (
cified. The set average current value in ampere is decisive; the pulse current (Ipuls) is specified with the
parameter
The pulse pause current (IPP) is not set. This value is calculated by the machine control to ensure that
the average value of the welding current (AMP) is maintained.
With the parameter
welding task. Especially in the lower frequency range, the adjustable pulse shapes show their effect on
the arc characteristics (only TIG DC).
Setting the pulse frequency and pulse balance
42
as a percentage of the average current (AMP).
, the waveform of the pulse can be adapted in the Expert menu to the existing
) and pulse frequency (
Figure 5-24
Figure 5-25
) must be spe-
4s
099-00T500-EW501
30.1.2023