AUXILIARY POWER CONNECTIONS
The power source is equipped to furnish nominally 115 volt AC and 42 volt AC auxiliary power for operat- ing wire feeding equipment, etc. The auxiliary power is available at the
REMOTE CONTROL CONNECTIONS
Remote control connections are available both at a
WATER COOLER CONNECTOR
A Continental European receptacle (220V Schuko type) is located on the rear panel for supplying 220VAC to a water cooler. A 2 amp circuit breaker which is also located on the rear panel protects this circuit.
OUTPUT CONNECTIONS
The output terminals are recessed on the case front and labeled “+” and
K852
INPUT CONNECTIONS
The three input lines are brought in through the rear panel of the power source and attached to the input contactor. Removal of the removable access panel makes the contactor accessible for the input cable connections.
INPUT LINE VOLTAGE COMPENSATION
The power source is equipped with input line voltage compensation as standard. For a line voltage fluctua- tion of ±10% the output will remain essentially con- stant. This is accomplished through the feedback net- work in the control circuit.
SOLID STATE OUTPUT CONTROL
The output of the welder is electronically controlled by SCR’s instead of mechanical contactors, providing extra long life for highly repetitive welding applica- tions.
SOLID STATE CONTROL SYSTEM
The Control PC Board is located behind the control panel which hinges down for easy access to the board. The Snubber PC Board is mounted on the back of the case front.
MACHINE COOLING
The fan pulls air in through the louvered front of the machine over the internal parts and exhausts out the louvered rear of the machine. The fan motor is fully enclosed, has sealed ball bearings, requires no lubri- cation, and operates when the power switch is turned on.
CASE FEATURES
The machine uses a 32” (813mm) long base. The low profile case facilitates installation of the machine under a workbench and stacking the machines three high to conserve floor space.
The case front incorporates a recessed hinged control panel where all the machine controls are mounted. This recessed panel protects the controls and mini- mizes the possibilities of accidental contact. This con- trol panel can be easily opened to permit access to the enclosed section which contains the terminal strips, PC board, etc.The output lead terminals are also recessed to avoid any object or person acciden- tally coming in contact with an output terminal.
The individual case sides are removable for easy access for internal service or inspection. These are removable even though the machines are stacked three high.
The case rear, top section, is equipped with a remov- able access panel. This provides easy access to the input contactor, easy connection and reconnection of input leads, and easy access for service or inspection.
Although the machine is designed for use in
A permanent lifting hook is located at the top of the machine and is positioned so that it acts as nearly as possible through the center of gravity. This lift hook is so positioned that it fits without interference under the base of the second machine when stacking.
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