Lincoln Electric DC-655 service manual Semiautomatic Wire Feeders

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C-6 C-6

ACCESSORIES

FIGURE C.3

IDEALARC DC-655/LN-7 WITH K584 INPUT CABLE ASSEMBLY CONNECTION DIAGRAM

POWER SOURCE

	LN-7 TO INPUT
21	CABLE PLUG

LN-7 CONTROL

						CABLE
+21- 21 41	4	2	31 32	75	76	77
						32
						31
						2
						4
						GND
NEGATIVE			POSITIVE			21
						ELECTRODE CABLE
						TO WIRE FEED UNIT
						}TO WORK

REMOTE VOLTAGE SENSING LEAD

SEMIAUTOMATIC WIRE FEEDERS

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CONNECTING THE LN-7 TO THE IDEALARC DC-655 (14-PIN MS RECEPTACLE)

1.Set the POWER toggle switch to the OFF (0) posi- tion.

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

3.Connect the electrode cable from the control cable to the “+” terminal of the welder and to the LN-7 wire feeder. Connect the work cable to the “-” terminal of the welder (High inductance or low inductance as needed). Reverse this hookup for negative polarity.

NOTE: Welding cable must be sized for the current and duty cycle of the application.

4.Connect control cable between the DC-655 and the LN-7. See Figure C.3.

5.Set the MODE switch to a CV (constant voltage) position at the welder.

6.Adjust wire feed speed at the LN-7 and set the welding voltage with the output CONTROL.

NOTE: If optional remote control is used, place the OUTPUT CONTROL and the OUTPUT TERMI- NALS switch in the “Remote” position.

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IDEALARC DC-655