General Notes - Cebora SOUND AC-DC 2330/M Manual De Instrucciones

4. Shows all sizes and the value of the second fun-
ctions menu.
AQ - SELECTOR SWITCH
Selects and saves programs.
The welding machine can save nine welding pro- grams P01.....P09, and call them up using this button.
The work program PL is also available.
Selection
If this button is briefly pressed the display U shows the
number of the program following the one being used. If it
has not been saved the message will flash, otherwise it
will remain steady.
Saving (see par.3.6)
Once the program has been selected, if the button is
pressed for more than 3 seconds, data are saved.
As confirmation, the program number on the display U
will stop flashing.
P – SELECTOR SWITCH
When this button is pressed, the LEDs light in suc-
cession:
Important! only those LEDs that refer to the chosen wel-
ding mode will light; i.e. in TIG-continuous led Q that re-
presents the pulse frequency will not glow.
Each led shows the parameter that can be set by means
of knob AA during the time when the led is glowing. 5
seconds after the last change the concerned led shuts
off and the main welding current is shown and the corre-
sponding led T glows.
LEDS THAT MAY BE SELECTED ONLY IN TIG DC (DI-
RECT CURRENT OR TIG AC WELDING (ALTERNA-
TING CURRECT)) :
AL- Pre-gas Led
Setting 0.05 to 2.5 seconds. Gas deli-
very time before welding starts.
S - Led Slope up.
This is the time in which the current,
beginning from the minimum, reaches
the set current value. (0-10 sec.).
T - Main welding current Led.
V - Basic or second level welding
current Led.
This current is always a percentage of
the main current.
AE - Pulsed frequency led (0.16-500
Hz).
W - Slope down Led.
This is the time in which the current
reaches the minimum value and the
arc shuts down (0-10 sec.).
X - Post-gas Led.
Sets gas output time when welding is
over. (0-30 sec.).
LEDS THAT MAY BE SELECTED ONLY IN TIG AC (AL-
TERNATING CURRENT) WELDING MODE:
AO Start led
Sets the "hot start" level to maximize TIC
AC ignitions for each electrode diameter
When this led lights the display O will display a digital va-
lue referred to the electrode diameters and the operator
may use the knob AA to set the diameter being used and
obtain a good start immediately. Range from 0.5 to 4.0.
Hz Q led
Sets the frequency of the alternating cur-
rent Range from 50 to 150 Hz.
Led R - Wave balance setting
Sets the percentage of the negative semi-
wave PEn (penetration ) by means of knob
AA; the value may change from 1 to 10.
Sets the percentage of the positive semi-wave CLn (clea-
ning ) by means of knob AA; the value may change from
1 to 10. The recommended setting value is 0.
Y Led.
Led that shows the correct operation of
the device which reduces risks of electric shock.
BC - 10-pin connector
Remote controls described in paragraph 5
must be connected to this connector.
Between pin 3 and 6 a clean contact is
available that signals the arc ignition (Max 0.5 A - 125
VAC / 0.3 A - 110 VDC / 1A - 30 VDC).

3.3. GENERAL NOTES

Before using this welding machine read carefully CEI
26-23 / IEC-TS 62081 standards and check integrity of
cable isolation, electrode clamp, sockets and plugs and
that the section and length of welding cables conform to
the used power.
3.4. MMA WELDING WITH COVERED ELECTRODES
- This welding machine is suitable for welding all types of
electrodes, with the exception of cellulosic (AWS 6010).
- Check that switch BE is in O position, then connect the
welding cables in compliance with the polarity requested
by the manufacturer of the electrodes you are going to
use; connect the earth cable terminal to the workpiece as
close as possible to the welding point and make sure that
there is a good electric contact.
- Do NOT touch the torch or electrode clamp simultane-
ously and the mass terminal.
- Turn the machine on using the switch BE.
- Select MMA process, by pressing button AT, led AW
is on.
- Adjust the current according to the electrode diameter,
15