Lincoln Electric PM 255 specifications Output Polarity Connections

A-4		INSTALLATION	A-4
	FIGURE A.2 — Triple Voltage Machine Input Connections

FIGURE A.3 — Receptacle Diagram

CONNECT TO A SYSTEM

GROUNDING WIRE. SEE

THE UNITED STATES

NATIONAL ELECTRICAL

CODE AND/OR LOCAL

CODES FOR OTHER

DETAILS AND MEANS

FOR PROPER GROUND-

ING.

CONNECT TO HOT

WIRES OF A THREE-

WIRE, SINGLE PHASE

SYSTEM OR TO ONE

PHASE OF A TWO OR

THREE PHASE SYSTEM.

OUTPUT POLARITY CONNECTIONS

The welder, as shipped from the factory, is connected for electrode positive (+) polarity. This is the normal polarity for GMA welding.

If negative (–) polarity is required, interchange the connection of the two cables located in the wire drive compartment near the front panel. The electrode cable, which is attached to the wire drive, is to be connected to the negative (–) labeled terminal and the work lead, which is attached to the work clamp, is to be connected to the positive (+) labeled terminal.

PM 255