EWM Tetrix 300 - Welding Current Polarity Reversal (Polarity Reversal); Selection and Adjustment

Design and function
MMA welding
099-000121-EW501
29.06.2015
67
element
MMA welding process selection.
Signal light lights up in green.
Set welding current.
If necessary, the pulse function can be enabled as well. Signal light
lights up in green- See 5.10.9 MMA pulse welding in the vertical up
position (PF) chapter.
5.10.3 Welding current polarity reversal (polarity reversal)
This function can be used to reverse the welding current polarity electronically.
For example, when welding with different electrode types for which different polarities are stipulated by
the manufacturer, the welding current polarity can be switched easily on the control.
5.10.4 Selection and adjustment
Operating
element
Action
Result
Displays
x x
Select welding current polarity welding parameter:
Press until welding current polarity AC/DC signal light
comes on.
Set welding current polarity
DC- position
"-" polarity on connection socket, welding current "-"
"+" polarity on connection socket, welding current "+"
DC+ position
"+" polarity on connection socket, welding current "-"
"-" polarity on connection socket, welding current "+"
AC position
MMA alternating current welding