Safety Precautions; Select Suitable Location; Stacking; Machine Grounding - Lincoln Electric Invertec V450-PRO User Manual

A-2

SAFETY PRECAUTIONS

Read
this entire installation section before you start
installation.
WARNING
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 con-
nected to the welding system at the disconnect
switch or fuse box before working on the equipment.
• Do not touch electrically hot parts.
• Always connect the V450-PRO (CE) grounding lug
(located inside the reconnect input access door) to
a proper safety (Earth) ground.
----------------------------------------------------------

SELECT SUITABLE LOCATION

Do not use the Invertec in outdoor environments without
appropriate protection. The V450-PRO (CE) power
source should not be subjected to falling water, nor
should any parts of it be submerged in water. Doing so
may cause improper operation as well as pose a safety
hazard. The best practice is to keep the machine in a dry,
sheltered area.
WARNING
Do not mount the V450-PRO (CE) over combustible
surfaces. Where there is a combustible surface
directly under stationary or fixed electrical equip-
ment, that surface 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 circu-
late in through the rear louvers and out through the case
sides and bottom. Water, Dirt, dust, or any foreign materi-
al that can be drawn into the welder should be kept at a
minimum. Failure to observe these precautions can result
in excessive operating temperatures and nuisance shut-
downs.
Machines are equipped with F.A.N. (fan as needed) cir-
cuitry. 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)
INSTALLATION
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 V450-PRO (CE) with accessories attached to
it.

STACKING

V450-PRO (CE) machines can be stacked to a maxi-
mum 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
the reconnect/input access door for this purpose. See
your local and national electrical codes for proper
grounding methods.

HIGH FREQUENCY PROTECTION

Locate the V450-PRO (CE) away from radio con-
trolled machinery.
The normal operation of the V450-PRO (CE) 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 V450-PRO (CE). 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.
-------------------------------------------------------------
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.
INVERTEC V450-PRO (CE)
CAUTION
is located inside
CAUTION
WARNING
A-2