CASE FRONT CONTROLS (See Figure B.1)
ACROSS THE ARC MODEL
1.WIRE FEED SPEED DISPLAY-The Wire Feed Speed display shows the rate the LN-15 will feed electrode dur- ing welding. The default WFS units for domestic models are inches/minute and can be changed to meters/minute through the configuration menu. The default WFS units for the European models are m/min. The wire feed speed is calibrated to within ±2%.
2.VOLTAGE DISPLAY-The voltage display shows the average arc voltage during the welding. A minus sign "-" appears when welding with electrode negative welding procedures. While welding, an LED will illuminate below the voltage display. After welding, the average voltage will continue to be shown for 5 seconds after the end and the LED will flash. of the weld. When not welding, the display shows "- - - ". The voltage is calibrated to ±2% over a range of 10 to 45 volts.
The voltage display is not a "preset" voltage. Refer to the examples from Figure B.1a.
3.WIRE FEED SPEED KNOB-The Wire Feed Speed knob is a 3-3/4 turn potentiometer that adjusts of the rate of feeding electrode. The wire feed speed range is 50 -
700inches/min (1.3 - 17.8 m/min)
FIGURE B.1a
4.VOLTAGE KNOB-The voltage knob is present only on control cable models.
Adjusting the voltage knob varies the power source volt- age to the LN-15. The value displayed is not a "preset" voltage. Only actual average arc voltage is shown on the voltage display.
For codes 10864, 10865:
The voltage knob controls the output of the power source through a 3-3/4 turn, 10K ohm potentiometer.
For codes 11033 and above:
The voltage knob controls the output of the power source through a _ turn, 10K ohm potentiometer.
5.TRIGGER CONNECTOR-5 Pin Receptacle is used to activate the Magnum Gun Switch.
6.CONNECTOR BUSHING-This connection is for weld- ing conductor cable assembly.
7.ON / OFF SWITCH-For codes 11033 and above:
The ON / OFF Switch turns power on and off to the wire feeder.
83% PROCEDURE
The LN-15 supports a special "dual procedure" mode. When activated, the wire feed speed is reduced to 83% of the set value, but no less than 50 inch- es/minute (1.27 m/min). The 83% procedure is most commonly used during pipe and out of position weld- ing. Requires Magnum 400 Dual Procedure Gun Equivalent.
FIGURE B.1
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2
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