Lincoln Electric SVM123-A service manual Output Connections

		A-8		INSTALLATION		A-8
TOC	TOC	OUTPUT CONNECTIONS			3. Connect electrode lead to the desired terminal
					(positive or negative) and tighten the output ter-
Section	Master	See Table A.1 for recommended IDEALARC DC-1000			minal nut with a wrench.
		cable sizes for combined length of electrode and work			4. Connect the second work lead to the other out-
		cables.
					put terminal (positive if negative is attached and
to	to
			TABLE A.1		vice versa) following steps 2 and 3.
Return	Return
					AUXILIARY POWER
		Suggested Copper Cable Sizes - 100% Duty Cycle
		Combined Lengths of Electrodes and Work Cables
					This machine supplies the 115 volt, AC power need-
		Amperes	Length	Cable Size
					ed for operating wire feeding equipment. The power
		1000	0 - 250 ft.	3-3/0	is available from terminals #31 and #32 on the termi-
			(76.2m)	(3 x 85.0 mm2)	nal strip. An 8 amp slow blow fuse on the machine
					control panel protects the auxiliary power from
		CONNECT ELECTRODE AND WORK
					excessive overloads. The circuit has a 1000 volt-
TOC	TOC	LEADS TO OUTPUT TERMINALS			ampere rating.
		The output terminals are located on the lower case			CONNECTION FOR SEMI-AUTOMATIC
					OR AUTOMATIC WIRE FEEDER
Section	Master	front and labeled “+” and “-”. See Figure A.4. There
		are 1000 amp rated “+” terminals on the right side,			CONTROL
		one 500 amp rated “+” terminal near the center and “-”
to	to	terminals on the left side. They are fully recessed to			With the DC-1000 turned off, the control cable from
		minimize the possibility of accidental contact by an			the semi-automatic or automatic wire feeding equip-
Return	Return
		object or a person.			box connector is provided for access into the termi-
					ment is connected to the terminal strip. A strain relief
		The 1000 amp output connections provide the full			nal strip section. A chassis grounding screw is also
		rated output range of the machine.
					provided below the terminal strip marked with the
		The 500 amp output connections provide enhanced			symbol	for connecting the wire feeding equip-
		lower current arc characteristics, especially for sub-			ment grounding wire. See the appropriate connec-
		merged arc and GMAW procedures below 450 amps.			tion diagram for the exact instructions for the wire
		1. Set the ON/OFF PUSH BUTTON to OFF.			feeder being used. A spare plugged hole is provided
					in case an additional box connector is required.

TOC	TOC	2. Insert the electrode lead through the oval opening	NOTE: See the ACCESSORIES Section of this man-
		in the lower shelf of the front case, closest to the	ual for specific instructions on connecting the follow-
Section	Master	desired polarity (positive or negative). Pull through	ing semi-automatic and automatic wire feeders:
		enough cable to reach the output terminals.	•	LN-7	}
to	to		•	LN-8		Semi-Automatic Wire Feeders
Return	Return
			•	LN-9
			•	NA-3	} Automatic Wire Feeders
			•	NA-5
			•	LT-7	} Tractors
			•	LT-56
to Section TOC	to Master TOC
Return	Return	FIGURE A-4 - Output Terminals
		IDEALARC DC-1000