Lincoln Electric IM714 POWER WAVE 455 - Manual (Page 10)

LIFTING
Lift the machine by the lift bail only. The lift bail is
designed to lift the power source only. Do not attempt
to lift the Power Wave with accessories attached to it.
STACKING
Power Wave machines can be stacked to a maximum
of 3 high.
The bottom machine must always be placed on a
firm, secure, level surface. There is a danger of
machines toppling over if this precaution is not
taken.
MACHINE GROUNDING
The frame of the welder must be grounded. A ground
terminal marked with the symbol is located inside
the reconnect/input access door for this purpose. See
your local and national electrical codes for proper
grounding methods.
HIGH FREQUENCY PROTECTION
Locate the Power Wave away from radio controlled
machinery.
The normal operation of the Power Wave may
adversely affect the operation of RF controlled
equipment, which may result in bodily injury or
damage to the equipment.
INPUT CONNECTION
Only a qualified electrician should connect the
input leads to the Power Wave. Connections
should be made in accordance with all local and
national electrical codes and the connection dia-
gram located on the inside of the reconnect/input
access door of the machine. Failure to do so may
result in bodily injury or death.
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Use a three-phase supply line. A 1.75 inch (45 mm)
diameter access hole for the input supply is located on
the upper left case back next to the input access door.
Connect L1, L2, L3 and ground according to the Input
Supply Connection Diagram decal located on the
inside of the input access door or refer to Figure A.1
on the following page.
SAFETY PRECAUTIONS
Read this entire installation section before you
start installation.
ELECTRIC SHOCK can kill.
• Only qualified personnel should
perform this installation.
• Turn the input power OFF at the
disconnect switch or fuse box before working on
this equipment. Turn off the input power to any
other equipment connected to the welding system
at the disconnect switch or fuse box before work-
ing on the equipment.
• Do not touch electrically hot parts.
• Always connect the Power Wave grounding lug
(located inside the reconnect input access door)
to a proper safety (Earth) ground.
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SELECT SUITABLE LOCATION
Do not use Power Waves in outdoor environments.
The Power Wave power source should not be subject-
ed to falling water, nor should any parts of it be sub-
merged in water. Doing so may cause improper opera-
tion as well as pose a safety hazard. The best practice
is to keep the machine in a dry, sheltered area.
Do not mount the Power Wave 455 over combustible
surfaces. Where there is a combustible surface directly
under stationary or fixed electrical equipment, that sur-
face shall be covered with a steel plate at least .060"
(1.6mm) thick, which shall extend not less than 5.90"
(150mm) beyond the equipment on all sides.
Place the welder where clean cooling air can freely cir-
culate in through the rear louvers and out through the
case sides and bottom. Dirt, dust, or any foreign mater-
ial that can be drawn into the welder should be kept at
a minimum. Do not use air filters on the air intake
because the air flow will be restricted. Failure to
observe these precautions can result in excessive
operating temperatures and nuisance shutdowns.
Machines above code 10500 are equipped with F.A.N.
(fan as needed) circuitry. The fan runs whenever the
output is enabled, whether under loaded or open circuit
conditions. The fan also runs for a period of time
(approximately 5 minutes) after the output is disabled,
to ensure all components are properly cooled.
If desired, the F.A.N. feature can be disabled (causing the
fan to run whenever the power source is on). To disable
F.A.N., connect leads 444 and X3A together at the output
of the solid state fan control relay, located on the back of
the Control PC board enclosure. (See Wiring Diagram)
A-2 INSTALLATION
POWER WAVE 455
A-2
WARNING
WARNING
CAUTION
CAUTION