Lincoln Electric Flextec 500X Operator's Manual page 17

FLEXTEC ® 500X
INPUT VOLTAGE SELECTION
Welders are shipped connected for 460V input voltage. If the
Auxiliary lead (indicated as 'A') is placed in the wrong position and
power is applied to the machine, the machine will protect itself
and display an error message:
• "Err" "713" or "714" will be shown on the display.
• The User Interface board and Switch Boards will blink out error
713 or 714 on their status LEDs.
• The weld output will be turned off and the control board will
force itself into an idle state. The FAN will run continuously.
• The machine will need to have the misconnect condition
removed before it will recover.
LOCATION
Location and ventilation for cooling
Place the welder where clean cooling air can freely circulate in
through the rear louvers and out through the case sides and front.
Dirt, dust, or any foreign material 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 shutdowns.
LIFTING
The Flextec ® 500X has two handles that can be used to lift the
machine.
Both handles should be used when lifting the machine. When
using a crane or overhead device to lift using the handles, a lifting
strap should be connected to both handles. Do not attempt to lift
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the Flextec 500X with accessories attached to it.
STACKING
The Flextec ® 500X cannot be stacked.
ENVIRONmENTAL LImITATIONS
The Flextec ® 500X is IP23 rated for use in an outdoor
environment. The machine should not be subjected to falling
water during use 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.
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Do not mount the Flextec 500X over combustible surfaces.
Where there is a combustible surface directly under stationary or
fixed electrical equipment, 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.
HIGH FREqUENCY PROTECTION
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Locate the Flextec 500X away from radio controlled machinery.
The normal operation of the machine may adversely affect the
operation of RF controlled equipment, which may result in bodily
injury or damage to the equipment.
VRD™ (VOLTAGE REDUCTION DEVICE)
The VRD™ feature provides additional safety in the CC-Stick
mode. The VRD™ reduces the OCV (Open Circuit Voltage) at the
welding output terminals while not welding to less than 35VDC
peak.
The VRD™ requires that the welding cable connections be kept in
good electrical condition because poor connections will contribute
to poor starting. Having good electrical connections also limits the
possibility of other safety issues such as heat-generated damage,
burns and fires.
The machine is shipped with VRD™ "Disabled". The VRD™
function can be disabled or enabled via dip switches on the user
interface P.C. board.
The user interface board and dip switches can be accessed by
removing the case top and side as shown in Internal Controls
scetion.
A-8
INSTALLATION