Output Polarity Connections; Input Power, Grounding And Connection Diagram - Lincoln Electric Power MIG 360MP Operator's Manual

®
POWER MIG 360MP

OUTPUT POLARITY CONNECTIONS

The welder, as shipped from the factory, is connected for
electrode positive (+) polarity. This is the normal polarity for
GMAW.
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.
INPUT POWER, GROUNDING AND CONNECTION DIA-
GRAM
WARNING
ELECTRIC SHOCK can kill.
• Do not touch electrically live parts
such as output terminals or internal
wiring.
• All input power must be electrically
disconnected before proceeding.
The POWER MIG
®
360MP is not equipped with 460/575 volt
60 Hz plug, an input cable or a receptacle.
1. Before starting the installation, check with the local power
company if there is any question about whether your power
supply is adequate for the voltage, amperes, phase, and
frequency specified on the welder rating plate. Also be sure the
planned installation will meet the U.S. National Electrical Code
and local code requirements. This welder may be operated from
a single phase source or from two lines of a three phase source.
2. POWER MIG
®
360MP has multiple input voltages specified on
the nameplate. The unit is shipped connected for the 230
voltage. If the welder is to be operated on 208 voltage, it must
be reconnected according to the instructions in Figure A.1. For
higher voltage (460 & 575) reconnect per Figure A.1. Install
appropriate input cable per local and national electrical code.
WARNING
Make certain that the input power is
electrically disconnected before removing
the screw on the reconnect panel access
cover.
FIGURE A.1
3. The POWER MIG ®
360MP is shipped with a 10 ft. NEMA R Type
6-50N three prong plug and cable connected to the welder. Obtain
a receptacle and mount it in a suitable location. Be sure it can be
reached by the plug on the input cable attached to the welder.
Mount with the grounding terminal at the top to allow the power
cable to hang down without bending.
A-3
INSTALLATION