INSTALLATION | ||
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SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
ONLY QUALIFIED PERSONNEL SHOULD PERFORM THIS INSTALLA- TION.
•TURN OFF INPUT POWER TO THE POWER SOURCE 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 WORKING ON THE EQUIPMENT.
•DO NOT TOUCH ELECTRICALLY HOT PARTS.
•ALWAYS CONNECT THE FLEXTEC™ 450 CE GROUNDING LUG (LOCATED INSIDE THE RECONNECT INPUT ACCESS DOOR) TO A PROPER SAFETY (EARTH) GROUND.
STACKING
The FLEXTEC™ 450 CE cannot be stacked.
ENVIRONMENTAL LIMITATIONS
The FLEXTEC™ 450 CE is IP23 rated for use in an outdoor environment. The FLEXTEC™ 450 CE 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.
CAUTION
Do not mount the FLEXTEC™ 450 CE over com- bustible 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.
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.
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 con- nections also limits the possibility of other safety issues such as
The machine is shipped with VRD™ “enabled”. The VRD™ function can be disabled or enabled via a dip switch on the control P.C. board.
The control board and dip switch can be accessed by removing the case top as shown in the Operation Section figure B.3.
INPUT AND GROUNDING CONNECTIONS
MACHINE GROUNDING
The frame of the welder must be grounded. A ground terminal marked with the symbol shown is located inside the reconnect/input connection area for this purpose. See your local and national electrical codes for proper grounding meth- ods.
HIGH FREQUENCY PROTECTION
Locate the FLEXTEC™ 450 CE away from radio con- trolled machinery. The normal operation of the FLEX- TEC™ 450 CE may adversely affect the operation of RF controlled equipment, which may result in bodily injury or damage to the equipment.
SELECT SUITAbLE 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. Dirt, dust, or any foreign material that can be drawn into the welder should be kept at a mini- mum. Failure to observe these precautions can result in excessive operating temperatures and nuisance shutdowns.
LIFTING
Both handles should be used when lifting the FLEX- TEC™ 450 CE. When using a crane or overhead device a lifting strap should be connected to both han- dles. Do not attempt to lift the FLEXTEC™ 450 CE with accessories attached to it.
HIGH TEMPERATURE OPERATION
WELDER OUTPUT RATINGS AT 55°C
ELEVATED TEMPERATURES
AMPS | DUTY CYCLE | VOLTS | TEMPERATURES | |
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340 | 100% | 34VDC |
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375 | 60% | 35VDC | 55°C | |
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400 | 40% | 36VDC | ||
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450 | 20% | 38VDC |
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