Jasic MIG160PFC, Manual

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5.3. MIG welding torch and earth cable connection
5.3.1 Digital/analog MIG welding torch
(Wiring diagram of MIG: DCEP)
Pay attention to the polarity of wiring before MIG. Generally, there are two connection
methods of DC welder: DCEN and DCEP.
DCEN: The workpiece is connected to the positive polarity, and the polarity changeover
connector is connected to the negative polarity;
DCEP: The workpiece is connected to the negative polarity, and the polarity changeover
connector is connected to the positive polarity.
If MIG is selected, except for carbon steel flux-cored self-shielded welding, which uses DCEN,
these welders generally use DCEP for other gas-shielded welding types:
1) Ensure that the power switch of the welder itself is turned off.
2) Insert the torch plug into the central socket on the front panel of the welder and tighten it
clockwise.
3) Insert the cable plug with earth clamp into the negative polarity socket on the front panel of
the welder and tighten it clockwise.
4) Insert the polarity changeover connector into the positive polarity socket on the front panel
of the welder and tighten it clockwise.
5) Connect one end of the gas hose to the gas valve inlet on the rear panel of the welder, and
the other end to the gas regulator outlet, and secure it with a clamp.
Junction box
Grounding
Power cord