Lincoln Electric SVM132-A service manual LN-8S and LN-8SE and Converted LN-8N and LN-8NE

A-4 INSTALLATION A-4

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LN-8S AND LN-8SE (AND CONVERTED LN-8N AND LN-8NE)

1.Use either a constant voltage or constant current type power source as required for the application. Ensure the power source is properly set for constant voltage or constant current welding, as appropriate, per the instructions in the power source operating manual.

2.Set the LN-8 wire feeder for a constant voltage or constant current power source as appropriate per the following:

a.There are two nameplates on the front of the wire feeder, one mounted on top of the other. Be sure the ‘Constant Current Power Source’ nameplate is on top when using a constant current power source. When connected to a constant voltage power source, be sure the ‘Constant Voltage Power Source’ nameplate is on top.

b.Turn the power to the wire feeder off. Open the door to the control section and switch the power source selection switch to constant current ‘CC’ or constant voltage ‘CV’ as appropriate. See Figure A.1.

3.Connect the LN-8 input cable to the power source exactly as specified in the wire connection diagrams in Table A.2. Include any jumpers on the terminal strips as shown in the connection diagrams.

4.Connect a work lead of sufficient size and length, per Table A.1, between the appropriate output terminal on the power source and the work. Ensure the connection to the work makes tight metal-to-metal contact.

FIGURE A.1 – POWER SOURCE SELECTION

SWITCH

POWER SOURCE￿

SELECTION SWITCH

VARIABLE￿

VOLTAGE￿

PC BOARD

VARIABLE￿

VOLTAGE￿

PC BOARD

LN-8