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A-8

A-8

INSTALLATION

TABLE A.1 - CABLE SIZES FOR COMBINED LENGTHS OF COPPER ELECTRODE

AND WORK CABLES

 

Up to 50 ft

50 - 100 ft

100 - 150 ft

150 - 200 ft

200 - 250 ft

Machine Size

(15 m)

(15 - 30 m)

(30 - 46 m)

(46 - 61 m)

(67 - 76 m)

400 Amp

3/0

3/0

3/0

3/0

4/0

(100% Duty

85 mm2

85 mm2

85 mm2

85 mm2

107 mm2

Cycle)

 

 

 

 

 

500 Amp

2/0

2/0

3/0

3/0

4/0

(50% Duty

67 mm2

67 mm2

85 mm2

85 mm2

107 mm2

Cycle)

 

 

 

 

 

 

 

 

 

 

 

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WIRE FEEDER CONNECTIONS

See the Accessories section of this manual for spe- cific instructions on connecting the following semi- automatic and automatic wire feeders to the Idealarc DC-400:

Automatic Wire Feeders:

NA-3

NA-5

Semi-automatic Wire Feeders:

LN-7

LN-8

LN-9

LN-25

LN-742

CONNECTIONS FOR STICK, TIG, OR AIR/CARBON ARC CUTTING OPERA- TIONS

The work and electrode cables for stick, TIG, or air/carbon arc cutting are connected as described ear- lier, under the heading Output Connections. A TIG torch is connected to the electrode (+) terminal of the welder. Select cable size according to Table A.1.

WARNING

Do not connect a TIG torch and stick electrode cable at the same time. They will both be electrically HOT.

If the Idealarc DC-400 is already set up for wire feeder operation, all wire feeder unit control, electrode, and work cables must be disconnected first before you can connect the cables for stick, TIG, or air/carbon arc operation.

However, the Idealarc DC-400 can be used for both wire feeder operation and stick, TIG, air/carbon arc operation if a K804-1 Multiprocess Switch is used. See the Accessories section of this manual for spe- cific instructions on connecting and using the Multiprocess Switch.

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WARNING

The output terminals are energized at all times when the Idealarc DC-400 is used for stick, TIG, or air/car- bon arc cutting.

96OCT

IDEALARC DC-400

LINCOLN ®

ELECTRIC

Page 14
Image 14
Lincoln Electric SVM 122-A service manual Wire Feeder Connections, Cycle 500 Amp 50% Duty