Lincoln Electric DC-655 service manual Automatic Wire Feeders, SEMI-AUTOMATIC Wire Feeders

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C-3			C-3
		ACCESSORIES
	The DC-655 can be used to power any of		AUTOMATIC WIRE FEEDERS
	the following Lincoln Wire feeders:		CONNECTING THE NA-3 OR LT-7 TO THE
	SEMI-AUTOMATIC WIRE FEEDERS		IDEALARC DC-655 (TERMINAL STRIP)
	• DH-10	• LN-9*	1. Set Idealarc DC-655 POWER toggle switch to the

OFF (0) position.

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•	LN-10	•	LN-9 GMA*
•	LN-7 GMA*	•	LN-23P
•	LN-742	•	LN-25
•	LN-7*	•	LN-8*

AUTOMATIC WIRE FEEDERS*

•	NA-3	•	NA-5R
•	NA-5	•	LT-7 Tractor

2.Disconnect main AC input power to the Idealarc DC-655.

3.Connect the wire feeder control cable leads to the Idealarc DC-655 terminal strip as shown in Figure C.1.

4.Connect the wire feeder control cable ground lead

to the frame terminal marked .

NOTE: The Idealarc DC-655 must be properly grounded.

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*European DC-655 models only provide 115VAC for these feeders at the ter- minal strip (TS2)

CONNECTION OF LINCOLN ELECTRIC AUTOMATIC OR SEMIAUTOMATIC WIRE FEEDERS

WARNING

ELECTRIC SHOCK can kill.

•Only qualified personnel should per- form this installation.

•Turn the input power OFF at the dis- connect switch or fuse box before working on this equipment.

•Do not touch electrically hot parts.

Auxiliary power for wire feeder operation is available at both a 14-pin MS receptacle and at terminal strips with screw-type connections located on the front of the machine. Refer to the Installation section for pinouts and lead designations. The two circuits are isolated, and each is protected by a circuit breaker.

The following descriptions show how to connect the wire feeders using either the 14-pin MS receptacle or the terminal strip.

FIGURE C.1 – NA-3 OR LT-7 WIRE FEEDER CONNECTION TO THE IDEALARC DC-655

14-PIN

	RECEPTACLE
POWER SOURCE		CONTROL CABLE
		FOR CONTROL CABLE
		WITH 14 PIN	MS-TYPE
		PLUG CONNECTOR
21	TO AUTOMATIC	OR
	CONTROL BOX
	CONTROL CABLE	FOR CONTROL CABLE
		WITH TERMINAL STRIP
		LEAD CONNECTORS

+21 - 21 41	4	2	31	32	75	76	77
							77
							76
							75
							32
							31
							2
							4
							GND
NEGATIVE				POSITIVE			21
							ELECTRODE CABLE
							TO AUTOMATIC
							EQUIPMENT
							TO WORK

REMOTE VOLTAGE SENSING LEAD

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.

IDEALARC DC-655