Lincoln Electric INVERTEC V160 Service Manual page 8

REMOTE LED, and switch to remote control mode.
More information on this mode of operation will be
given in the next section.
Controls and Operational Features
A. Power Switch: Controls the input power to the
machine. Make sure the machine is properly
connected to the input supply before turning the
machine on.
B. Fan: The cooling fan will turn ON when the
machine is turned ON and it will continue to run
whenever the output of the machine is ON. If the
output of the machine is OFF for more than five
minutes, the fan will turn OFF. This reduces the
amount of dirt that is deposited inside the machine
and reduces power consumption.
Refer to the Output LED section below for more
information about conditions when the output of the
machine is ON. The V160-S always has the output
turned ON so the fan will not turn OFF.
Additionally, when the V160-T machines are in Stick
mode, the fan will not turn OFF because the output
remains ON.
C. Gas Inlet (V160-T machines only): Connector for
the TIG shielding gas. Use the supplied gas line and
connector to connect the machine to the gas source.
The gas source must have a pressure regulator and
flow gage installed.
D. Mode Switch: This switch changes the welding
modes of the machine. The V160-S has two
welding modes: Stick (SMAW) and Lift TIG
(GTAW). The V160-T machines have three
welding modes: Stick (SMAW), Lift TIG (GTAW)
and HF TIG (GTAW).
When the mode switch is in the Stick position, the
following welding features are enabled.
•
Hot Start: This is a temporary increase in the output
current during the start of the stick welding process.
This helps ignite the arc quickly and reliably.
•
Arc Force: This is a temporary increase in the
output current during normal stick welding. This
temporary increase in output current is used to clear
intermittent connections between the electrode and
the weld puddle that occur during normal stick
welding. The amount of arc force can be adjusted
on the V160-S, refer to Arc Control, described
below.
•
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
BACK
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.
The last mode switch position, HF TIG, is only
available on the V160-T machines. When the mode
switch is in this position, the stick welding functions
are disabled and the machine is ready for HF TIG
welding. During the HF TIG mode, the TIG arc is
started by HF without pressing the electrode on the
work piece. The HF used for starting the TIG arc
will remain on for 6.5 seconds; if the arc is not
started in this time limit, the trigger sequence must be
restarted.
E. Trigger Mode Switch (V160-T machines only):
This switch changes between 2-step and 4-step
trigger sequences. For an explanation of these
trigger sequences refer to the trigger sequences
explained below.
F. Power LED: This indicator will blink on and off
when the machine is first turned on. After
approximately 2 seconds it will stop blinking and
remain on to signal that the machine is ready.
G. Thermal LED: This indicator will turn on when the
machine is overheated and the output has been
disabled. This normally occurs when the duty cycle
of the machine has been exceeded. Leave the
machine on to allow the internal components to
cool. When the indicator turns off, normal
operation is again possible.
H. Remote LED (V160-T machines only): This
indicator will turn on when a remote control is
connected to the machine via the remote control
connector. Using a remote control will change the
function of the output current control, refer to the
output current control section below.
I. Output LED: This indicator turns on when the
output of the machine is on. Both the type of
machine and the position of the mode switch
determine when the output of the machine is turned
on.
V160-S: In both welding modes, selected by the
mode switch, the output of the machine is always
turned on.
V160-T: In stick welding mode, the output of the
machine is automatically turned on. However, in
both of the TIG welding modes, the output of the
machine is turned ON and OFF by the TIG torch
connected to the trigger connector on the front of the
machine.
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