Lincoln Electric SVM123-A Options/Accessories, Connecting the NA-3 or LT-7 to, Idealarc DC-1000

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C-2			ACCESSORIES	C-2
OPTIONS/ACCESSORIES			CONNECTING THE NA-3 OR LT-7 TO
• Remote Control Box Assembly (K775)			IDEALARC DC-1000
•	LN-7	}Semi-Automatic Wire Feeders	1. Disconnect main AC input power to the IDE-
•	LN-8
			ALARC DC-1000.
•	LN-9
•	NA-3	} Automatic Wire Feeders	2. Set IDEALARC DC-1000 ON/OFF PUSH BUT-
•	NA-5		TON to OFF.

•LT-7 and LT-56 Tractors

3. Connect the wire feeder control cable leads to the

METERSIDEALARC DC-1000 terminal strip as shown in

Figure C.1.

Optional factory-installed voltmeter and ammeter are available.

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REMOTE OUTPUT CONTROL - (OPTIONAL)

The K775 Remote Output Control consists of a control box with 28 ft. (8.4 m) four conductor cable. This con- nects to terminals #75, #76, #77 on the terminal strip, and the case grounding screw marked with the sym-

bol on the machine. These terminals are made available by opening the terminal access cover on the case front. This control will give the same control as the output control on the machine.

CONNECTIONS FOR SEMI-AUTO- MATIC OR AUTOMATIC WIRE FEEDER CONTROL

1.Set the ON/OFF PUSH BUTTON to OFF.

2.Locate and open the hinged access door on the Front Case Assembly.

3.Insert control cable through the strain relief box connector and pull enough cable through to reach the terminal strip.

4.Connect the automatic wire feeder control cable to the terminal strip. See corresponding connection diagram in this section of the manual, or the instructions included with the wire feeder.

5.Connect the wire feeder grounding wire to the chassis ground screw marked with the symbol .

NOTE: The IDEALARC DC-1000 Auxiliary Power Circuit (at #31 and #32 on the terminal strip) supplies 115-volt AC power to the wire feeding equipment. The circuit has a 1000 volt ampere rating. An 8-amp slow blow fuse on the machine’s control panel protects the auxiliary power supply from excessive overloads or short circuits.

FIGURE C.1 - NA-3 or LT-7 Wire Feeder Connection to the IDEALARC DC-1000

4.Connect the wire feeder control cable ground lead

to the frame terminal marked .

CAUTION

The IDEALARC DC-1000 must be properly grounded.

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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.

b.Tape the bolted connection with insulating tape.

NOTE: 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.

IDEALARC DC-1000