Lincoln Electric IM490-C Output Connections, Quick Disconnect Plugs, Remote Control Receptacle

A-5 INSTALLATION A-5

OUTPUT CONNECTIONS

Refer to figure A.2 for the location of the 6 Pin Remote Receptacle and the Output Terminals.

FIGURE A.2 OUTPUT CONNECTIONS

QUICK DISCONNECT PLUGS

A quick disconnect system is used for the welding cable connections. The welding plug included with the machine is designed to accept a welding cable size of 1/0 to 2/0.

6PIN REMOTE RECEPTACLE

SMAW	GTAW SMAW		THERMAL
SOFT		CRISP		HOT START

				5	6
				4	7
				3	8
	A		120	2
		85
	OUTPUT			1	9
	50		170	0	10
	15		230	ARC FORCE
REMOTE	LOCAL	1		5	6
				4	7
				3
			250		8
				2
				1	9
				0	10
	INVERTEC ¤ V250-S

			S
-	+	I

1.Remove 1 in. (25mm) of welding cable insulation.

2.Slide rubber boot onto cable end. The boot end may be trimmed to match the cable diameter. Soap or other lubricant will help to slide the boot over the cable.

BOOT

WELDING CABLE

25 mm

TRIM

O

1 in.

OUTPUT TERMINALS

REMOTE CONTROL RECEPTACLE

Remote control (K857), Arc start switch (K814), Hand amptrol (K963) and Foot amptrol (K870) connect directly to 6 pin amphenol on the front of the unit.

Note: A minor modification is needed when K963 Hand Amptrol is used with the V250-S. The braided grounding strap must be disconnected from connector body on end of cable that attaches to machine. Remove cable clamp screw securing grounding strap, remove strap, and reinstall screw. Run grounding strap along side of cable so that it does not contact connector body, and secure in place with electrical tape. This modification is necessary in order to avoid coupling electrical noise from the case of the machine onto the control leads, which would otherwise result in poor starting and unstable welding performance.

OUTPUT CABLES

Select the output cable size based on Table A.1.

TABLE A.1

Cable Sizes for Combined Length of Electrode and

Work Cable ( Copper Cable Rated at 75°C).

Length	Cable Size
up to 150 ft.(46m)	1/0 (50mm2)
up to 250 ft.(72m)	2/0 (70mm2)

3.Slide the copper tube into the brass plug.

4.Insert cable into copper tube.

5.Tighten set screw to collapse copper tube. Screw must apply pressure against welding cable. The top of the set screw will be well below the surface of the brass plug after tightening.

SET SCREW

BRASS PLUG

COPPER TUBE

6.Slide rubber boot over brass plug. The rubber boot must be positioned to completely cover all electrical surfaces after the plug is locked into the receptacle.

INVERTEC V250-S