Lincoln Electric MULTI-SOURCE IM692 - Manual (Page 9)

A-2 INSTALLATION
MULTI-SOURCE
A-2
LOCATION
Place the power supply where clean cooling air can
freely circulate in through the front louvers and out
through the rear louvers. Dirt, dust or any foreign
material that can be drawn into the welder should be
kept at a minimum. Failure to observe these precau-
tions can result in excessive operating temperatures
and nuisance shut-downs.
STACKING
• Follow these guidelines when stacking:
1. Select a firm, level surface capable of supporting
the total weight of up to two machines (1984
pounds/901kilograms).
2. Set the bottom machine in place.
3. Stack the second machine on top of it by aligning
the two holes in the base rails on the second
machine with the two pins on top at the front of the
bottom machine.
Note: The machines must be stacked with the Case
Front of each machine flush with each other.
INPUT AND GROUNDING
CONNETIONS
Note: A qualified electrician should connect the
input power supply leads.
Input conductor is brought into the machine input box
area through a hole in the rear panel sized to accom-
modate 2" (trade size) conduit and fittings. This is
more than adequate for the largest conductors
required.
Conductors must be lugged to attach to the three 3/8"
studs on the input reconnect panel and the 5/16"
ground stud marked with the symbol . The input
voltage supplied determines the position required for
the reconnect panel jumper. The three ranges on the
standard machine are 380-415, 440-460 and 550-575.
The machine is rated for 50 and 60 Hz operation. See
the Input Connection Diagram located on the inside of
Case Back Input Access Door.
The conductor and fuse sizes in the Technical
Specification Section (A-1), are per the 1999 National
Electrical Code. The sizes are in American Wire
Gauge (and the next largest standard metric size in
mm2). National and local codes must be consulted
before connecting a machine.
Protect the input circuit with the super lag fuses or
delay type circuit breakers listed in the Technical
Specification Section (A-1). (They are also called
inverse time or thermal / magnetic circuit breakers.)
Use of fuses or circuit breakers with a lower amp rat-
ing than recommended can result in nuisance tripping
caused by inrush current even when machine is not
being used for welding at high output currents.
Machines may be paralleled for increased output.
The S20428 Paralleling Kit permits paralleling of two
Multi-Source power supplies for supplying currents of
up to 1000 amps, 100% duty cycle.
ELECTRIC SHOCK can kill.
• Have an electrician install and service
this equipment.
• Turn the input power off at the fuse
box before working on equipment.
• Do not touch electrically hot parts.
• The Multi-Source power supply should not be used
if the green Safe Output light is not lit. The machine
is designed to open its input contactor if output volt-
age peaks exceed the limits set by certain approval
agencies. If the Safe Output light is on, the output
voltage is within it designed operating range.
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WARNING
FALLING EQUIPMENT can cause
injury.
• Two Multi-Source machines can be
stacked.
• Lift only with equipment of adequate
lifting capacity.
• Be sure machine is stable when lifting.
• Do not stack more than two high.
• Do not stack the Multi-Source on top of any other
machine.
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WARNING