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MMA Welding
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 polarity 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..
INSTALLATION & OPERATION
1
panel (0.0
～
10S);
(12) t7: Electromagnetic valve is closed and stop argon flowing. Welding is finished.
§3.3 Installation & Operation for MMA welding
§3.3.1 Set up 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 polarity 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
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
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 power
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 multi meter measure the input voltage is within the fluctuation range
7. The power ground is well grounded.
