Cebora SOUND DC 3241/T Manual De Instrucciones página 13

E - 2-stage TIG welding LED (manual)
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 O. When the
trigger is released, the current begins to drop over the previ-
ously set "SLOPE DOWN" time, until it returns to zero.
In this position, you may connect the pedal control acces-
sory ART. 193.
F - 4-stage TIG welding LED (automatic)
This program differs from the previous one in that the arc is
both started and shut off by pressing and releasing the torch
trigger.
G - four-stage TIG welding LED with dual cur-
rent level, (automatic).
Set the two current levels before lighting the arc:
First level: press the R key until the LED X lights, and adjust
the main current using the knob O.
Second level: press the R key until the LED W lights, and
adjust the main current using the knob O.
When the torch trigger is pressed, the current begins to
increase over the previously set "slope up" time (led S lit),
until it reaches the value set by means of the knob O. The
LED X lights and appears on the display P.
Should it be necessary to reduce the current during welding,
without shutting of the arc (for instance when changing the
welding material or working position, moving from horizontal
to upright, etc....), press and immediately release the torch
trigger: the current will switch to the second value selected,
the LED W will light and X will go off.
To return to the previous main current, press and release the
torch trigger once again. The LED X will light, and the LED W
will go off. To stop welding at any time, simply hold down the
torch trigger for more than 0.7 seconds, then release. The
current begins to fall to zero within the previously set "slope
down" time interval (LED U lit).
If you press and immediately release the torch trigger during
the "slope down" phase, you will return to "slope up" if it is set
to greater than zero, or to the lesser current value of those set.
NOTE: The expression "PRESS AND IMMEDIATELY
RELEASE" refers to a maximum time of 0.5 seconds.
H - four-stage TIG welding LED with three lev-
els of current (automatic).
To set the three minimum welding currents, proceed as fol-
lows:
Press the selector switch R until the LED X lights, then adjust
the maximum current value using the knob O.
Press the selector switch R until the LED W lights, then
adjust the intermediate current value using the knob O.
Press the selector switch R until the LED AP lights, then
adjust the starting current value using the knob O.
The operating logic is the same as previously described for
welding with dual current level (LED G).
I - special program LED
To light the arc, press the torch trigger and hold it down; the
current begins to increase at a fixed rate. If the torch trigger
is released, the current immediately rises to the welding
value (LED X). To stop welding, press the torch trigger and
hold it down; the current begins to drop at a fixed rate. The
current immediately returns to zero if the trigger is released.
L - spot-welding LED (Manual).
After selecting the welding current (LED X) and the spot
welding time (LED T) using the selector switch R, set the val-
ues using the knob O.
This welding mode is to be used only if start-up with high fre-
quency is selected (LED D lit). In this welding mode, the
operator presses the torch trigger, the arc lights, and after
the set spot welding time the arc shuts off automatically. To
do the next spot, you must therefore release the torch trig-
ger and press it again.
M - LED - THERMAL PROTECTION
Lights when the operator exceeds the duty cycle or per-
centage intermittence admissible for the machine, and
simultaneously blocks the current output.
NOTE: In this condition the fan continues cooling the
power source.
O - Knob
Normally adjusts the welding current.
Also, if you select a function with the selector switch
R, this knob adjusts its size.
P - Display
Displays the welding current and the settings
selected by means of the push-button R and
adjusted via the knob O.
In the machine blocking procedures (see 2.3.2), it displays:
Three flashing or steadily lit points
The abbreviations E1 E2 E3 E4
The abbreviation H20
N - Display
Normally displays the arc voltage in relation to
the current welding process.
When setting the cooling unit operation, it displays the sta-
tus of the unit.
Q - SELECTOR
Selects and saves programs.
The welding machine can save nine welding pro-
grams P01.....P09, and call them up using this button. A
working program PL is also available.
Selecting
When this push-button is pressed briefly, the display P
shows the next program number after the one being worked
on. If it has not been saved the message will flash, otherwise
it will remain steady.
Saving
Once the program has been selected, hold for more than 3
seconds to save the data. In confirmation, the program num-
ber on the display P will stop flashing
R - SELECTOR
When this button is pressed, the LEDs light in suc-
cession:
Warning: only those LEDs that refer to the chosen welding
mode will light; i.e., in continuous TIG welding the LED T,
representing the pulse frequency, will not light.
Each LED indicates the parameter that may be adjusted by
means of the knob O while the LED itself is lit. Five seconds
after the last variation, the LED involved will shut off; the
main welding current will be displayed, and the correspond-
ing LED X lights.
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