voestalpine Bohler Welding URANOS NX 2200 SMC Classic Mode D'emploi page 13

2.3 Connection
The equipment is provided with a power supply cable for connection to the mains.
The system can be powered by:
• single-phase 230V
Operation of the equipment is guaranteed for voltage tolerances up to ±15% with respect to the rated value.
To prevent injury to persons or damage to the equipment, the selected mains voltage and fuses must be checked
BEFORE connecting the machine to the mains. Also check that the cable is connected to a socket provided with
earth contact.
The equipment can't be powered by a generating set.
In order to protect users, the equipment must be correctly earthed. The power supply voltage is provided with an
earth lead (yellow - green), which must be connected to a plug provided with earth contact. This yellow/green wire
shall NEVER be used with other voltage conductors. Verify the existence of the earthing in the equipment used and
the good condition of the sockets. Install only certified plugs according to the safety regulations.
The electrical connections must be made by skilled technicians with the specific professional and technical
qualifications and in compliance with the regulations in force in the country where the equipment is installed.
2.4 Installation
2.4.1 Connection for MMA welding
The connection shown in the figure produces reverse polarity welding.
To obtain straight polarity welding, reserve the connection.
Connect the earth clamp to the negative socket (-) of the power source. Insert the plug and turn clockwise until all parts are
secured.
Connect the electrode holder to the positive socket (+) of the power source. Insert the plug and turn clockwise until all parts are
secured.
Earth clamp connector
1
Negative power socket (-)
2
Electrode holder clamp connector
3
Positive power socket (+)
4
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INSTALLATION
EN