Lincoln Electric SVM 122-A Connecting the NA-5 to the Idealarc DC-400 Terminal Strip

C-7 C-7

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FIGURE C.4 – NA-3 WIRE FEEDER

CONNECTION TO THE IDEALARC DC-400

5.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.

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.4 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 (-).

6.Set the DC-400 OUTPUT CONTROL switch to the “Remote” position and the OUTPUT TERMINALS switch in the “Remote” position.

CONNECTING THE NA-5 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.5.

FIGURE C.5 – NA-5 WIRE FEEDER

CONNECTION TO THE IDEALARC DC-400

NOTE: If using a K215 control cable, connect control cable leads #75, #76, and #77 to the matching #75, #76, and #77 terminals on the terminal strip of the Idealarc DC- 400.

4.Connect the wire feeder control cable ground lead

to the frame terminal marked .

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

IDEALARC DC-400

LINCOLN ®

ELECTRIC