EN
4. Installation & Operation for MMA welding
4.1 Set up and installation for MMA Welding
Connection of Output Cables
Two sockets are available on this welding machine. For MMA welding the electrode holder is
shown be connected to the positive socket, while the earth lead (work piece) is connected to
the negative socket, this is known as DCEP. However various electrodes require a different polar-
ity for optimum results and careful attention should be paid to the polarity, refer to the electrode
manufacturer's information for the correct polarity.
DCEP
: Electrode connected to “+” output socket.
DCEN
: Electrode connected to “-” output socket.
MMA (DC):
Choosing the connection of DCEN or DCEP according to the different electrodes.
Please refer to the electrode manual.
MMA (AC):
No requirements for polarity connection.
(1) Connect the earth lead to “-”, tighten clockwise;
(2) Connect the earth clamp to the work piece. Contact with the work piece must be firm
contact with clean, bare metal, with no corrosion, paint or scale at the contact point.
(3) Connect the electrode lead to “+”, tighten clockwise;
(4) Each machine is equipped with a power cable should be based on the input voltage
welding cable connected to the appropriate position, not to pick the wrong voltage;
(5) With the corresponding input power supply terminal or socket good contact and prevent
oxidation;
(6) With a multimeter measure the input voltage is within the fluctuation range;
(7) The power ground is well grounded.
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