Cebora INVERTER TIG, Instruction Manual

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14
This program differs from the previous one in that the arc
is both started and shut off by pressing and releasing the
torch trigger.
Special 4 Stages ( Automatic ).
This function can be used with:
- 4 stages double level current
- pulsed 4 stages
- 4 stages double level pulsed current
It allows the crater current to be maintained (
CrC
) when
the welding process is over until the welding torch trigger
is pressed. In order to obtain this 4 stages the final crater
filler function ( CrA ) must be ON and the crater current
(
tCr
) must be 0.0.
Welding starts when the welding torch trigger is pressed
and immediately released. Starting current is the current
controlled by parameter SC , the up slope follows and the
welding current is reached.
To stop welding the operator presses the welding torch
trigger and keeps it held down, the machine then follows
the slope down and reaches the crater current (CrC), this
value remains active until the welding torch trigger is re-
leased Fig. ( 2 ).
Fig. 2
I - LED. 4 stages double level pulsed cur-
rent (automatic).
Before lighting the arc set the two current levels:
First level: Press button
P
until led
T
glows and then use
knob
AA
to set the main power
Second level: press button P until led V glows and use
knob AA to set the main power.
After the arc is lighted, the current begins to increase
over the previously set “slope up” time (led
S
on), until it
reaches the value set by means of knob AA . The LED T
lights and the display O shows it.
Should it be necessary to reduce the current during
welding, without shutting off the arc (for instance when
changing the welding material or working position, mo-
ving from horizontal to upright, etc.), press and imme-
diately release the torch trigger, the current reaches the
second set value, the led V lights and the led T shuts off.
In order to go back to the previous main current, repeat
the same torch trigger pressing and releasing action, the
led T lights while led V shuts off. To stop welding at any
time, simply hold down the torch trigger for more than
0.7 seconds
, then release it; the current starts to decre-
ase down to zero in the “slope down” time previously set
(led W on).
During “slope down” phase, if you press and immedia-
tely release the torch trigger, the current goes back to the
previously set lower level.
IMPORTANT: “PRESS AND IMMEDIATELY RELEASE”
refers to a maximum 0.5 sec. time.
M - LED. TIG 2 stages pulsed welding (ma-
nual).
When the torch trigger is pressed, the current begins to
increase over the previously set “slope up” time, until it
reaches the value set by means of the knob AA . When
the trigger is released the current starts to decrease over
the previously set “slope down” time and returns to zero.
In this position the pedal control accessory ART. 193 can
be connected.
N - LED. TIG-pulsed 4 stages welding (au-
tomatic).
This program differs from the previous one in that the arc
is both started and shut off by pressing and releasing the
torch trigger.
PP - LED. TIG- pulsed 4 stages double le-
vel welding (automatic).
The welding process mode is the same as the one de-
scribed for led I. Once the first level peak currents are
set, the ratio between them will be kept in the second
level as well.
AA - KNOB
Set the welding current at 10-180A in MMA
and 5-220A in TIG.
Together with button P it is possible:
-to set the current second level V
-to set the “slope up”
S
-to set the “slope down” W
-to set the pulse frequency AE
-to set post gas X
-to set AC welding current frequency
Q
-to set wave balance in AC welding R
U - Display
Shows:
1. In MMA the open-circuit voltage
and during welding the load voltage.
2. In TIG continuous, without pressing the torch trigger,
the abbreviation PL (free program).
In
TIG continuous
, when pressing the welding torch
trigger, but without welding, the open-circuit voltage.
In TIG continuou s when pressing the torch trigger,
but while welding, the load voltage.
3. Displays by the number all sizes, except current ones,
selected by means of button
P
.
4. Displays all the abbreviations of the service fun-
ctions menu .
5. Abbreviation “ OPn “ flashing when the thermostat is on.
6. During the selection of free or saved programs abbre-
viations PL…P01…P09 .
O - Display
Shows:
1 in open-circuit mode the reset
current
2. In load conditions, the welding current and its levels.
3. In TIG-pulsed, load mode, the currents changing
from one level to the other.