Lincoln Electric LINC 405-S Operator's Manual page 8

2. Thermal Overload Indicator: This lamp will light up
when the machine is overheated and the output has
been turned off. This can occur if the ambient
temperature is above 40° C or the duty cycle of the
machine has been exceeded. Leave the machine
on to allow the internal components to cool, when
the lamp turns off normal operation is possible.
•
Thermostatic fan: the fan can be additionally
controlled by the thermal protection circuit. In
this mode the fan is operating only while
cooling is needed. This feature saves energy
and also minimizes the amount of dirt and other
air borne particles being drawn into the
machine. Thermostatic fan is switched off by
factory default. If you want to activate it:
•
Ensure that the input cable must be
disconnected from the main supply and the
machine switched OFF.
•
Remove the top panel from the machine.
•
Reconnect X13 according to the diagram
below:
•
Replace the top panel.
3. Power on/off Switch: Controls the input power to
the machine.
4. Hot Start Control (LINC
temporary increase in the output current during the
start of stick (MMA) welding that helps ignite the arc
quickly and reliably. The potentiometer is used to
set the level of the increased current.
5. Negative Quick Disconnect: Negative output
connector for the welding circuit.
6. Digital Welding Current Meter with memory feature
(LINC -SA only): Shows present the value of the
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welding current during welding; after welding it
continues to display the average welding current.
7. Output Current Control: Potentiometer used to set
the output current (also during welding).
•
LINC 405: 15A
•
LINC 635: 15A
8. Local/Remote Switch: Remote Control Unit
K10095-1-15M and K870 can be used with this
machine. It changes control of the Output Current
from the machine Output Control (point 7) to the
K10095-1-15M or K870 and vice versa.
9. Arc Force Control (LINC
function used during stick (MMA) welding in which
the output current is temporarily increased to clear
short circuit connections between the electrode and
the weld puddle that occur during normal welding.
10. Remote Control Connection: If a remote control is
used, it will be connected to the remote connector.
-SA only): Hot Start is a
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400A
670A
-SA only): It is a
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11. Positive Quick Disconnect: Positive output
connector for the welding circuit.
12. Mode Switch (LINC
changes the welding modes of the machine. The
LINC -SA has two welding modes: Stick (MMA)
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and Lift TIG (GTAW).
When the mode switch is in the Stick position, the
following welding features are enabled:
•
Hot Start
•
Arc Force
•
Anti-Sticking: This is a function which
decreases the output current of the machine to
a low level when the operator makes an error
and sticks the electrode to the work piece. This
decrease in current allows the operator to
remove the electrode from the electrode holder
without creating large sparks which can
damage the electrode holder.
When the mode switch is in the Lift TIG position, the
stick welding functions are disabled and the
machine is ready for Lift TIG welding. Lift TIG is a
method of starting a TIG weld by first pressing the
TIG torch electrode on the work piece in order to
create a low current short circuit. Then, the
electrode is lifted from the work piece to start the
TIG arc.
13. Power Input Socket: Connect the supply plug to the
existing input cable, that is rated for the machine as
indicated in this manual, and conforms to all
applicable standards. This connection shall be
performed only by a qualified person.
A-3
-SA only): This switch
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LINC 405
LINC 635