Lincoln Electric SVM 122-A Connecting the LN-7 to the Idealarc DC-400 Terminal Strip

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C-10 C-10

ACCESSORIES

FIGURE C.8 - LN-7 WIRE FEEDER CONNECTION TO THE IDEALARC DC-400

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CONNECTING THE LN-7 TO THE IDEALARC DC-400 (TERMINAL STRIP)

1.Disconnect main AC input power to the Idealarc DC-400.

2.Set the Idealarc DC-400 POWER toggle switch to the OFF (0) position.

3.Connect the wire feeder control cable leads to the Idealarc DC-400 terminal strip as shown in Figure C.8.

4.Connect the wire feeder control cable ground lead

to the frame terminal marked .

NOTE: The Idealarc DC-400 must be properly grounded.

5.PERFORM THIS STEP ONLY IF THE LN-7 IS EQUIPPED WITH A METER KIT.

Extend wire feeder control cable lead #21 so it can be connected directly to the work piece.

a.Make a bolted connection using AWG #14 or larger insulated wire. Tape the bolted connec- tion with insulating tape.

NOTE: If the work cable length is less than 25 feet and the connections to the work piece are secure, then wire feeder control cable lead #21 can be connected directly to the DC- 400 terminal strip.

b.An S-16586- X remote voltage sensing work lead is available for this purpose.

c.Keep the #21 lead electrically separate from the work cable circuit and connection.

d.Tape the #21 lead to work cable for ease of use.

NOTE: The connection diagram shown in Figure C.8 shows the electrode connected for positive polarity. To change polarity:

a.Set the IDEALARC DC-400 POWER toggle switch to the OFF (0) position.

b.Move the electrode cable to the negative (-) output terminal.

c.Move the work cable to the positive (+) output terminal.

d.Set the VOLTMETER toggle switch to nega- tive (-).

IDEALARC DC-400

LINCOLN ®

ELECTRIC