OPERATING INSTRUCTIONS |
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CONTROLS AND
THEIR FUNCTIONS
The operator controls for the
EXPOSED CONTROLS (WITH
LOCKABLE COVER DOWN)
1.CIRCUIT BREAKER. Protects the circuit from severe wire feed motor overloads and short circuits. Press to reset.
2.CONTROL POWER. Turns input control power “On” and “Off.” Also used as an emergency “Off” in case of malfunction.
3.ELECTRODE “HOT” LIGHT. Comes on when the “Start button” is pressed and the electrode circuit becomes electrically hot.
FIGURE B.1 – NA-5 CONTROLS.
11 | 17 | 10 | |
16 |
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12 |
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3 |
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9 | 14 | 4 | |
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2 | 5 | ||
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4.INCH UP AND INCH DOWN. Press to inch electrode up or down.
5.MODE SELECTOR SWITCH AND LIGHTS. Used to preset the voltage and wire feed speed for the various modes of operation (Strike, Start, Weld, and Crater).
6.
7.START. Begins welding cycle.
8.STOP. Initiates the stopping cycle at the end of the weld.
9.TRAVEL. Turn to “Off” for no travel, “Hand Travel” for travel without welding, and “Automatic Welding” for welding operations.
10.VOLTS METER. Displays the set or actual voltage for each mode (Strike, Start, Weld, Crater).
11.WIRE SPEED METER. Displays the set or actual wire speed for each mode (Strike, Start, Weld, Crater).
CONTROLS UNDER THE LOCKABLE SECURITY COVER
12.ARC STRIKING CONTROLS. Sets the wire speed until the welding current begins to flow and controls the power source voltage during arc striking.
13.BURNBACK AND ELECTRODE BACKUP TIME. Controls the length of burnback delay time after the stop circuit is energized.
14.WELD CONTROLS. Controls the voltage and wire speed during the welding mode.
15.CRATER CONTROLS (OPTIONAL). Sets the ending current and voltage for an adjustable period of time.
16.START CONTROLS (OPTIONAL). Sets the starting current and voltage for an adjustable period of time.
17.WELD TIME (OPTIONAL). Controls the time of the weld mode.
