Lincoln Electric IM602-A manual Diagrams, Negative Positive

CONNECTION OF LN-7 TO THE CV-655, DC-655 OR DC-600 POWER SOURCE

F-1

14-PIN RECEPTACLE

POWER SOURCE CONTROL CABLE

	LN-7 TO INPUT
21	CABLE PLUG
	LN-7 CONTROL
	CABLE

FOR CONTROL CABLE

WITH 14 PIN MS-TYPE PLUG CONNECTOR

OR

FOR CONTROL CABLE WITH TERMINAL STRIP LEAD CONNECTORS

Do not operate with covers removed.

Disconnect power source before servicing.

Do not touch electrically live parts.

Only qualified persons should install, use or service this machine.

DC-655

+21 - 21 41	4	2	31 32	75 76 77
				N.E.
N.F.
				32
				31
				2
				4
N.B. & N.C.				GND
NEGATIVE			POSITIVE	N.D.
				21
		N.G.
				ELECTRODE CABLE
				TO WIRE FEED UNIT
		N.A.
				TO WORK

REMOTE VOLTAGE SENSING LEAD

Above diagram shows electrode connected positive. To change polarity, turn power off, reverse the electrode and work leads at the power

source and position the switch on wire feeder (if equipped ) to proper polarity. Also refer to note N.F.

For proper setting of switches on power source, see power source operating manual.

N.A. Welding cables must be of proper capacity for the current and duty cycle of immediate and future applications. See LN-7

Operating Manual for proper sizes.

N.B. If LN-7 is equipped with a meter kit, extend LN-7 control cable lead #21 from control cable with terminal strip connectors or from 14-pin receptacle using #14 AWG or larger insulated wire physically

suitable for the installation. An S16586-[LENGTH] remote voltage sensing work lead may be ordered for this purpose.

Connect it directly to the work piece independent of the welding work cable connection. For convenience, this extended #21 lead should be taped to the welding work lead. (If the length of welding work cable is short, less than 25 feet, and connections can be expected to be reliable, then control cable lead #21 does not need to be extended and can be directly connected to terminal #21 on the terminal strip. Note that this is not the preferred connection because it adds error to the LN-7 voltmeter reading.)

N.C. Tape up bolted connection if lead #21 is extended.

N.D. Connect the control cable ground lead to the frame terminal

marked near the power source terminal strip. The power

source grounding terminal (marked and located near the power source input power connections) must be properly connected to electrical ground per the power source operating manual.

N.E. If an optional remote voltage control is used, connect it to

this terminal strip.

N.F. If lead #21 is to be connected to the terminal strip, connect to the #21 terminal that matches work polarity. This connection must be changed whenever the electrode polarity is changed.

N.G. Illustration does not necessarily represent actual position of

appropriate output studs. Refer to power source operating manual for more information.

10-30-98F

DIAGRAMS

F-

S22976

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