Weldmatic 180 | Operator Manual | Model No CP141-1
15
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Fig 2 Positive Wire
(-) output
terminal
(+) output
terminal
Polarity
selection
cable
Fig 3 Negative Wire
(-) output
terminal
(+) output
terminal
Work clamp
Polarity
selection
cable
MIG Welding (GMAW)
Output Voltage Polarity
The design of the Weldmatic allows
selection of the output voltage polarity.
Positive Wire
MIG welding (GMAW), with solid
consumable wires and gas shielding, is
carried out with the work piece Negative
and the welding wire Positive.
To setup for this condition, connect the
‘WORK’ lead plug into the (-) output terminal
on the power source, and the Polarity
Selection Cable from the power source into
the (+) output terminal, as in Figure 2.
Negative Wire
Some ‘self-shielded’ flux cored gasless
consumable wires are operated with the
work piece Positive and the consumable
wire Negative. Refer to the manufacturers
data for the particular consumable wire
to be used.
To setup for this condition, connect the
‘WORK’ lead plug into the (+) output
terminal on the power source, and the
Polarity Selection Cable from the power
source into the (-) output terminal, as
in Figure 3.
+
-
+
-
Work
clamp
