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INVERTER ARC 230
INPUT CONNECTIONS
Ground Connection
The frame of the welder must be grounded. A
ground terminal marked with the symbol is located
on the under panel for this purpose. See your local
and national electrical codes for proper grounding
WARNING
methods.
A grounding conductor is supplied
in the input cord, it is important
that the supply receptacle ground
is connected.
•
The welding power source supply cable
is provided with a green or
yellow/green wire that must ALWAYS be earthed. This
green or yellow/green wire must NEVER be used with
other voltage conductors.
•
Only install plugs that conform with safety regulations.
Input Power Connection
Check the input voltage, phase, and frequency supplied to this
machine before turning it on. The allowable input voltage is
indicated in the technical specification section of this manual and
on the rating plate of the machine. Be sure that the machine is
grounded.
Make sure the power available at the input connection is adequate
for normal operation of the machine. The fuse rating and cable
sizes are both indicated in the technical specification section of
this manual.
Fuse the input circuit with time delay fuses marked "D" or delay
(1)
type
circuit breakers. Using fuses or circuit breakers smaller
than recommended may result in "nuisance" shut-offs from
welder inrush currents even if not welding at high currents.
(1) Also called "inverse time" or "thermal/magnetic" circuit breakers. These
circuit breakers have a delay in tripping action that decreases as the mag-
nitude of the current increases.
The Inverter Arc 230 is recommended for use on an individual
branch circuit.
230v INPUT
The Inverter Arc 230 is provided with a 230V cable, 6.0ft.(1.8m) in
length, with a 50 Amp (NEMA 6-50P) plug molded onto the cord.
The rated output of the Inverter Arc 230 is available when
connected to a 30A branch circuit. When connected to a branch
circuit with lower ampacity, lower welding current and duty cycle
must be used. Other loads on the circuit and fuse/circuit breaker
characteristics will affect the available output.
OUTPUT CONNECTIONS
A quick disconnect system using Twist-Mate™ cable plugs is
WARNING
used for the welding cable connections.
ELECTRIC SHOCK can kill.
•
Keep the electrode holder and cable
insulation in good condition.
•
Do not touch electrically live parts or
electrode with skin or wet clothing.
•
Insulate yourself from work and ground.
•
Turn the input line Switch on the AUTOPRO™ 90S "off"
before connecting or disconnecting output cables or
other equipment.
Stick Welding (SMAW)
First determine the proper electrode polarity for the electrode to
be used. Consult the electrode data for this information. Then
connect the output cables to the output terminals of the machine
for the selected polarity. Shown here is the connection method for
DC(+) welding. (See Figure A.1)
Connect the electrode cable to the (+) terminal and the work
clamp to the (-) terminal. Insert the connector with the key lining
up with the keyway and rotate approximately 1/4 turn clockwise.
Do not over tighten.
For DC(-) welding, switch the cable connections at the machine so
that the electrode cable is connected to (-) and the work clamp is
FIGURE A.1
connected to (+).
Work Cable
Work Clamp
Electrode Holder
A-2
INSTALLATION
Positive "+"
Negative "–"
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