Design and function
MIG/MAG welding
30
099-005639-EW501
04.06.2020
• Insert the polarity selection plug into the "+" welding current connection socket and lock in place by
turning to the right.
• Insert the central plug for the welding torch into the central connector and screw together with crown
nut.
• Insert cable plug on the workpiece lead into the "-" welding current socket and lock by turning to the
right.
Some wire electrodes (e.g. self-shielding cored wire) are welded using negative polarity. In this
case, the welding current lead should be connected to the "-" welding current socket, and the
workpiece lead should be connected to the "+" welding current socket. Observe the information
from the electrode manufacturer!
5.2.1.1 MIG/MAG function torch
The torch trigger on the MIG welding torch is generally used to start and finish the welding process. Func-
tion torches feature additional operating elements to set the wire feed speed and voltage correction.
Welding torches with one rotary knob, one rocker or one pair of buttons only must be configured on the
machine control appropriately. For this purpose, set the FRC special parameter to the corresponding ac-
cessory component
> see 5.6 chapter
.
5.2.1.2 MIG/MAG Push/Pull welding torch
Pin assignment
without
potentiometers
with potentiometer for
wire feed speed
with potentiometers for
wire feed speed and arc
length correction
Figure 5-13
5.2.2 Wire feed
CAUTION
Risk of injury due to moving parts!
The wire feeders are equipped with moving parts, which can trap hands, hair, clothing
or tools and thus injure persons!
• Do not reach into rotating or moving parts or drive components!
• Keep casing covers or protective caps closed during operation!
Risk of injury due to welding wire escaping in an unpredictable manner!
Welding wire can be conveyed at very high speeds and, if conveyed incorrectly, may
escape in an uncontrolled manner and injure persons!
• Before mains connection, set up the complete wire guide system from the wire spool to the
welding torch!
• Check wire guide at regular intervals!
• Keep all casing covers or protective caps closed during operation!
