Lincoln Electric IM602-A manual GND Negative Positive

CONNECTION OF LN-8 OR LN-9 TO THE CV-655, DC-655 OR DC-600 POWER SOURCE

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14-PIN RECEPTACLE

POWER SOURCE CONTROL CABLE

21

TO LN-8 OR LN-9

INPUT CABLE PLUG

N.F.

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.G.					C	N.E.
					B
					A
					32
					31
					2
					4
N.B. & N.C.					GND
NEGATIVE			POSITIVE		N.D.
					21
	N.H.
					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.

N.B. Extend 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 keeping it electrically separate from the welding work lead circuit and connection. For convenience, this extended #21 lead should be taped to the welding work lead. (If the length of work lead circuit is

short, 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 wire feeder 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 using an older LN-8 control cable: connect lead #75 to #75 on terminal strip, connect lead #76 to #76 on terminal strip, connect

lead #77 to #77 on the terminal strip.

N.F. The LN-9 voltage control jumpers must be connected as follows (refer to LN-9 Operating Manual):

White jumper on voltage board to pin "S" .

Blue jumper on voltage board (later units only), or on start board (earlier units), to pin "B".

N.G. 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.H. Illustration does not necessarily represent actual position of appropriate output studs. Refer to power source instruction manual for more info.

10-30-98F

S22977

DIAGRAMS

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