Cebora Sound MIG 3840/T Manual De Instrucciones página 17

LED R3
Conventional MIG/MAG welding.
LED R4
TIG welding
The arc is started by means of a short-circuit.
LED R5
MMA (Manual Metal Arc) welding.
3.1.2 AJ Button Selecting the operating mode.
Each time this button is pressed, the LED corre-
sponding to the selection lights.
LED S-Two-stage
The machine begins welding when the torch
trigger is pressed, and stops when released.
NOTE: This mode is active in all MIG and TIG processes.
LED T-Four-stage
To begin welding press and release the torch
trigger; to interrupt, you must press and release it again.
NOTE: This mode is active in all MIG and TIG processes.
LED U-Welding with three levels of cur-
rent.
NOTE: this mode is active in synergic MIG processes in
TIG mode.
Especially recommended for MIG welding of aluminium.
Three currents are available, which may be called up
during welding using the torch start button. The "slope"
current may be set as described in paragraph 3.2
"accessory functions": LEDs AB, AC, AD.
- Operation in MIG mode:
Welding begins when the torch button is pressed. The
welding current used will be the one set with the LED
AB. This current will be kept for as long as the torch
trigger is held down; when released, the first current
changes to the welding current, set with the knob N,
within the time established by the LED AC, and will be
kept until the torch trigger is pressed again. The next
time the torch button is pressed, the welding current will
switch to the third current or "crater-filler" current, set
with the LED AD, in the time established by the LED AC,
and will be maintained for as long as the torch trigger is
held down. Welding stops when the button is released.
Starting from version 06 of art. 287 and version 13 of art.
289, the parameters set via the LEDs AB, AC, AD may be
viewed and adjusted in the service functions menu (para-
graph 3.5), and will be abbreviated as follows, respectively:
SC = starting current corresponding to the LED AB.
Slo = Slope (interface time) corresponding to the LED AC.
CrC = Crater current corresponding to the LED AD,
expressed as a percentage of the wire speed in
welding.
- Operation in TIG mode:
To start the arc, briefly press and release (< 0.7 sec.) the
torch trigger, and within three seconds create a brief
short-circuit between the tungsten electrode and the
workpiece. The arc lights and the welding current will be
the one set with the LED AB. This current will be main-
tained until the torch trigger is pressed briefly and relea-
sed. At this commands the first current switches to the
welding current, set with the knob N, in the time establi-
shed by the LED AC and will be maintained until the
torch trigger is once again briefly pressed and released.
At this point the welding current will switch to the third
current, or "crater-filler" current, set with the LED AD, in
the time established by the LED AC. To shut off the arc,
briefly press and release the button.
At any time during welding, pressing the torch button for
more than 0.7 seconds will shut off the arc.
NOTE: moving the reference current, thus the one set
with knob N, automatically changes to percentages the
current set with the LEDs AB and AD.
3.1.3 Button AK Choice of the wire diameter.
Every time this button is pressed, it lights the LED
(V1, V2, V3, V4) corresponding to the wire diameter
that the machine is set to weld.
NOTE: This selection is active only with synergic MIG
proceses.
3.1.4 Button AL Choice of filler material
With each press, the LED corresponding to the choi-
ce will light.
LED W1 for iron,
LED W2 for aluminium,
LED W3 for stainless steel.
The LED X displays the choice of other spe-
cial types of wires. As a result of the choices
made using the above buttons:
-The display AN1
displays the welding programs that exist for the
various ypes of material, specifically:
if selected FE
if selected AL
if selected SS
if selected SP
The materials may be chosen using the
button AM.
NOTE: This selection is active only with MIG
processes.
-The display AN2
displays the welding programs that exist for the gas
types associated with the types of material, specifically:
if FE is selected
if Al is selected
if SS is selected
if SP is selected
The gas may be chosen using the torch
trigger AX.
NOTE: This selection is active only with MIG processes.
NOTE: If, after setting your choices, there is no program
to weld the wire diameter selected, the displays O and P
will display the message NO-PRG.
3.2 ACCESSORY FUNCTIONS
3.2.1 AH Button
When this button is pressed the display AN2 shuts
off and the display AN1 numerically displays the
value of the size selected.
This is signaled by the corresponding LED, which lights,
and is adjustable via the buttons AM and AX. If the numeri-
cal value is not changed within 5 seconds, the displays
SG2 etc.
AlSi 5, AlMg 5, Al 99,5 etc.
308L, 316L etc.
Al Bz8, CuSi 3, Rutile, Basic,
Metal, CrNi etc.
CO2, Ar 18CO2 etc.
Ar
Ar 2CO2, Ar 2O2 etc.
Ar, Ar 30He, Ar 18CO2 etc.
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