2T / 4T EXPLANATION:
2T: Press the torch trigger to weld. Welding continues until the trigger is released.
4T: Press the torch trigger and immediately release the trigger, welding will start and continue
until the torch trigger is pressed and released a second time. The 4T function is useful when
doing long welds and in some automatic welding operations where the torch may be
mounted in a fixture.
1. Power switch indicator: This green LED lights when the welding machine is ON and is ready
to work. A steady green LED indicates the welder is connected to power supply. In the event of
an overvoltage supply the green LED blinks and the red LED (3) is ON.
2. Thermal overload indicator: If the yellow LED is ON it indicates that the welder has
overheated and the machine has automatically shut down. This may be a result of having
exceeded the welders duty cycle or that normal cooling air flow has been interrupted. Check
to confirm that the cooling fan is running and that air flow is not blocked. Do not turn off the
welder as this will stop the cooling fan. When the welder has cooled sufficiently the yellow
LED will go out and the welder is ready to weld.
3. Alarm indicator: This red LED lights when there is a working abnormality such as an over
voltage supply.
4. Left Display: During welding it displays the actual value of the output current (AMP). When
the machine is not welding, (no load), the display shows the value of the parameter selected
with the Left Knob (8):
a. In STICK, “SMAW”and TIG, “GTAW” Mode it shows the selected current value. If Remote
is selected with switch (20) for TIG Welding, “GTAW” with a foot control, the display will
alternate between “ReC” (to indicate remote control), and the selected current. In this case
the current is adjusted using the foot control.
b. In MIG, “GMAW” Manual Mode (2T/4T), the display shows the selected wire speed
from 1 (minimum wire feeder speed) to 80 (maximum speed). If Remote is selected with
switch (20), the display will alternate between “SPE” (to indicate spool gun external) and
the selected wire speed which is adjusted with a potentiometer located on the spool gun
handle.
c. In MIG, “GMAW” Synergic Mode (2T/4T), the display shows the selected wire speed
from 1 (minimum wire feeder speed) to 80 (maximum speed). If Remote is selected with
switch (20), the display will alternate between “SPE” (to indicate spool gun external) and
the selected wire speed which is adjusted with a potentiometer located on the spool gun
handle.
5. Right Display: During welding it displays the actual arc voltage. When the machine is not
welding (no load) it displays the value of the parameter adjusted with the Right Knob (7):
a. In STICK, “SMAW”Mode it displays the Hot Start over-current value expressed as a
percentage of the base welding current selected with the left knob (8). The over current
value is variable from 0 to 50% of the base current. Maximum Hot start value of 50% can
be adjusted up to 55 Amp of welding current. On the display the value of Hot Start is
shown as “H” and the value of the over current in %.
b. In TIG, “GTAW” Mode the display is not active.
c. In MIG, “GMAW” Manual Mode (2T/4T) it displays the selected arc voltage from 10V to
24V.
d. In MIG, “GMAW” Synergic Mode (2T/4T) it displays the value of the selected voltage
expressed as a percentage of the maximum available voltage.
6. Selector switch for the Welding Modes Selection: STICK, “SMAW” - TIG, “GTAW” - MIG,
“GMAW” manual 2T, manual 4T, Syn 2T, Syn 4T.
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