EWM Tetrix 350 - MMA Process Selection and Polarity Reversal; MMA Welding Process and Current Selection; MMA Polarity Reversal (Electronic)

Design and function
MMA welding
099-004854-EW501
19.02.2014
71
5.10.2 Selection and adjustment
Operating
element
Action
Result
Select MMA welding process.
The signal light comes on in green.
Set welding current.
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.
5.10.3.1 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