- 9 - PATON ECO DC MMA
2.3 POWER CONNECTION
The welding machine of series design is rated for:
1. Mains voltage is 220V (-27% + 18%) - for MINI, ECO-160/200/250;
2. Three-phase mains voltage is 3x380V or 3x400V (for ECO-315-400V); three wires are
dedicated for this. Safety rules when working with welding equipment require grounding of
the unit housing. There are two ways to do this: 1) by using the fourth wire in the mains
yellow-green cable (international marking standard); 2) by using a bolted terminal on the
rear wall of the unit (a stricter grounding standard, used in the CIS countries).
Caution! When the unit is connected to a mains voltage higher than 270V (for MINI, ECO-
160/200/250) or 450V (for ECO-315-400V), all manufacturer's warranty obligations
become invalid! The manufacturer's warranty obligations also become invalid in case of
an erroneous connection of the mains phase to the source ground.
The mains connector, the cross-sections of the mains cables, as well as the mains
fuses need to be selected based on the unit technical data.
2.4 CONNECTING THE MAINS PLUG
CAUTION! The mains plug needs to match the supply voltage and current
consumption of the welding unit (see the technical data). According to safety rules,
please, use the sockets with guaranteed grounding!!!
3. MANUAL METAL ARC (MMA) WELDING
- insert the electrode cable into the socket of the source A “+”;
- insert the grounding cable into the socket of the source B “-”;
- connect the grounding cable to the product;
- connect the mains plug to the power supply;
- turn the power switch 5 to the “I” position.
Fig. 2. Connection diagram of the MMA unit
CAUTION! After the main switch 3 is switched to the "I" position, the MMA
electrode is energized. Do not touch conductive or grounded objects such as, e.g., the
housing of the welding unit, etc. with the electrode.
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