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• S1:
INTERNAL-EXTERNAL
pressing the S1 key, you can select adjustment of the
welding current from the panel or from the remote control
.
If a pedal remote control is used it is possible to set the
maximum and minimum value of the welding current; with
E1 the maximum current is set, while by pressing the S1
key for two seconds the minimum current can be set as a
percentage of the set maximum current, visualized as
cXX (XX = percentage value, from 1 to 90%).
• S2: WELDING PARAMETERS selection button.
The diagram shows the welding parameters that can be
selected clockwise by pressing key S2. Every time the
key is pressed a led in the diagram lights up to confirm
the dislpay of that parameter on the screen. Once a
parameter has been selected, turn the encoder to change
its value. The new value will be automatically stored. The
key is enabled only in the TIG mode. In the MMA mode
welding current led L3 remains on all the time.
To better understand the function of the parameters
described below, referred to the following graph.
• L3: Welding current.
• L4: Second welding current in Bi-level TIG
mode.When the torch key is quickly pressed and
released (less than 0.5 seconds) while welding, the
welding current value is brought from the one set in the
"welding current" parameter (L3) to the one set through
this parameter.
• L5: Base current in pulsed TIG mode. It is the
minimum current of the pulsed wave; when it is increased,
the welding bath is created more quickly but also the heat
input to the material and the heat altered zone increase.
• L6: Peak time. Expressed in percentages on the pulse
total cycle in TIG mode.It is the time in which the pulsed
wave is at the welding current compared with the total
time of the pulsation cycle (t2+t3).
• L6-L7: Pulse frequency. It is the frequency of pulsation
cycle repetition. By increasing this parameter there is
greater concentration on the welding arc in the weld zone
and the heat-altered zone decreases.
• L8: Slope-down time. This makes it possible to set a
time in which the current is taken from the welding current
to the final current.
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• L9: Final current. (The CRATER FILLER CURRENT
function has been provided in the four-stroke process
only).This is the current the welder is taken to at the end of
the welding process. In the four-stage applications there is
a CRATER FILLER CURRENT function (in the third stage)
that permits an optimal crater closure time.
• L10: Post-gas time. This determines the gas emission
time once the welding arc is off.
• Spot welding time. (Only if spot welding tig procedure is
enabled.) Display D1 shows the message tx.x which can
vary from 0.1 to 9.9 seconds, indicating welding time
length.
In this mode welding is carried out for the time length set
by the parameter even if the torch button remains pressed
for a longer time.
• L11: Pre-gas time. It makes it possible to determine the
length of gas emission before the HF start.
• L12: Starting current. It is the current to which the
welding machine is brought after being ignited.
• L13: Slope up time. This makes it possible to set a time
in which the current is taken from the start current to the
welding current.
• Hot-start. Increases current as a percentage of the
welding current set, at the moment of the start of welding
arc to help the electrode melt.
• Arc-force. Increases current as a percentage of the
welding current set that helps the detachment of the drop
from the electrode at the moment of contact with the piece
during welding.
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