Lincoln Electric IM602-A manual Output Connections, Electrode and Work Cables, Table A.1

A-5 INSTALLATION A-5

OUTPUT CONNECTIONS

ELECTRODE AND WORK CABLES

Use the shortest possible cable lengths. See Table A.1 for recommended cable sizes based on length.

TABLE A.1

Cable Sizes for Combined Lengths of Copper

Electrode and Work Cable

	Cable Length		Parallel Cables	Cable Size
	ft. (m)
0	(0) to 100	(30.4)	2	2/0 ( 70mm2)
100	(30.4) to 200	(60.8)	2	3/0 ( 95mm2)
200	(60.8) to 250	(76.2)	2	4/0 (120mm2)

2.Connect the electrode cable to the positive terminal marked “+”.

3.Remove the terminal strip access cover panel on the lower case front. Refer to figure A.3 for the location.

4.Work Sense lead #21 from the 14 Pin MS-recepta- cle must be connected to “-21”on the terminal strip.

Note: This is how the DC-655 is shipped from the factory.

5.Replace the terminal strip access cover panel.

The output terminals are located at the lower front of the welder behind a hinged door Refer to figure A.3. Route the welding cables through the slotted strain reliefs of the base to the welding terminals.

LOW INDUCTANCE TERMINAL

On the DC-655, the inside right Negative (-) output terminal is lower choke inductance. This terminal is presently only recommended for CV mode welding with NR203Ni 1% negative polarity procedures. All other processes are to be welded using the outside right Negative (-) output terminal with higher choke inductance. CC mode processes must use high inductance.

For Positive Polarity:

1. Connect the work cable to the high inductance (-)

terminal (marked " ").

For Negative Polarity:

1.Connect the electrode cable to the appropriate high

inductance (-) terminal (marked " ") or

to the low inductance ( - ) terminal

(marked " ") if using NR203Ni 1% elec- trode only.

2.Connect the work cable to the positive terminal marked “+”.

3.Remove the terminal strip access cover panel on the lower case front. Refer to figure A.3 for the location.

4.Work Sense lead #21 from the 14 Pin MS-recepta- cle must be connected to “+21”on the terminal strip.

5.Replace the terminal strip access cover panel.

14 PIN MS RECEPTACLE

POSITIVE	LOW INDUCTANCE	HIGH INDUCTANCE
OUTPUT
	NEGATIVE OUTPUT
		NEGATIVE OUTPUT
TERMINAL
	TERMINAL
TERMINAL STRIP		TERMINAL
COVER PANEL

FIGURE A.3 Output Connections

DC-655