Controls And Operational Features - Lincoln Electric INVERTEC Serie Manual De Instrucciones

TIG Welding
This machine does not include a TIG torch necessary for
TIG welding, but one may be purchased separately.
Refer to the accessories section for more information.
Most TIG welding is done with DC(-) polarity shown
here. If DC(+) polarity is necessary switch the cable
connections at the machine.
Connect the torch cable to the (-) terminal of the
machine and the work clamp to the (+) terminal. Insert
the connector with the key lining up with the keyway and
rotate approximately ¼ turn clockwise. Do not over
tighten. Finally, connect the gas hose to the gas
regulator on the cylinder of gas to be used.
Allowable TIG processes:
•
135S:
•
150S / 170S:
Arc Force
Auto Adaptive Arc Force (with MMA welding)
(150S / 170S only):
During MMA welding is activated the function Auto
Adaptive Arc Force that increases temporary the output
current, used to clear intermittent connections between
the electrode and the weld puddle that occur during stick
welding.
This is an active control feature that guarantees the best
arrangement between the arc stability and spatter
presence. The feature "Auto Adaptive Arc Force" has
instead of a fixed or manual regulation, an automatic and
multilevel setting: its intensity depends by the output
voltage and it is calculated in real time by the
microprocessor where are also mapped the Arc Force
levels. The control measure in each instant the output
voltage and it determines the amount of the peak of
current to apply; that value is enough to breaks the metal
drop that is being transferred from the electrode to the
workpiece as to guarantee the arc stability, but not too
high to avoid spatters around the welding puddle. That
means:
•
Electrode / workpiece sticking prevention, also with
low current values.
•
Spatters reduction.
The welding operations are simplified and the welded
joins looks better, also if not brushed after the welding.
With the MMA welding are also enabled the following
features:
•
Hot Start: This is a temporary increase in the initial
welding current. This helps ignite the arc quickly
and reliably.
English
Scratch TIG
Lift TIG
•
Anti-Sticking: This is a function that 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 that
can damage the electrode holder.
Refer to the section below for more details.

Controls and Operational Features

Machine Start-Up:
When the machine is turned ON, an auto-test is
executed; during this test only the Thermal LED is ON;
after few seconds the Thermal LED turns OFF and the
Power ON/OFF LED lights up.
• 135S: The Machine is ready to operate when on
the Front Control Panel lights up the Power ON
LED.
•
150S / 170S: The Machine is ready to operate
when on the Front Control Panel lights up the Power
ON LED with one of the three LED of the Welding
mode command.
Front Panel Controls
Output Current Knob: Potentiometer used
to set the output current used during
welding.
Power ON/OFF LED: This LED lights up
when the machine is ON.
150S / 170S: If blinking, this LED indicates
that an Input Voltage Overrange protection
is active; the Machine restarts automatically
when the Input Voltage returns in the correct
range.
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.
VRD LED's (enabled on Australian
Machines only): This machine is provided
by VRD (Voltage Reduction Device)
function: this reduces the voltage at the
output leads.
The VRD function is enabled by factory
150S
default only on machines that meet the
170S
AS 1674.2 Australian Standards. (C-Tick
only
logo " " on/near the Rating Plate applied
on the machine).
The VRD LED is ON when the Output
Voltage is below 32V with the Machine at
For others
disabled (the LED is always OFF).
3
idle (no welding time).
machines this function is
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