Lincoln Electric SVM123-A Reconnect Procedure, Fuse and Wire Sizes, Ground Connection

A-4 INSTALLATION A-4

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FUSE AND WIRE SIZES

Protect the input circuit with the super lag fuses or delay type circuit breakers listed on the Technical Specifications page of this manual for the machine being used. They are also called inverse time or ther- mal/magnetic circuit breakers.

DO NOT use fuses or circuit breakers with a lower amp rating than recommended. This can result in nui- sance tripping caused by inrush current even when machine is not being used for welding at high output currents.

Use input and grounding wire sizes that meet local electrical codes, or see the Technical Specifications page in this manual.

GROUND CONNECTION

Ground the frame of the machine. A ground terminal

marked with the symbol is located inside the Case Back of the machine. Access to the rear input panel is at the upper rear of the machine. See your local and national electrical codes for proper grounding meth- ods.

RECONNECT PROCEDURE

Multiple voltage machines are shipped connected to the highest input voltage listed on the machine’s rating plate. Before installing the machine, check that the Reconnect Panel in the Input Box Assembly is con- nected for the proper voltage.

CAUTION

Failure to follow these instructions can cause immedi- ate failure of components within the machine.

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To reconnect a multiple voltage machine to a different voltage, remove input power and follow the Input Connection Diagram located on the inside of Case Back Input Access Door. These connection diagrams are listed below:

1.For 460 single voltage, 230/460 Dual Voltage, 220/440 Dual Voltage, 415 Single Voltage or 575 Single Voltage, refer to Figure A.3a.

2.For 380 Single Voltage Machines, refer to Figure A.3b.

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INPUT POWER SUPPLY CONNECTIONS

A qualified electrician should connect the input power supply leads.

1.Follow all national and local electrical codes.

2.Follow Input Supply Connection Diagram located on the inside of the machine.

3.Use a three-phase line.

4.Remove Input Access Door at upper rear of machine.

5.Connect the three-phase AC power supply leads L1, L2, and L3 to the input terminals on the recon- nect panel. See Figure A.2

3.For 380/500 Dual Voltage Machines, refer to Figure A.3c.

4.For 220/380/440 Triple Voltage Machines, refer to Figure A.3d

IDEALARC DC-1000