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current value of up to 100% of the set current can be reached with regula-
tion from 0 to 100%. No other operation can be enabled during this pro-
cess.
2.
Set the selector to position 2 (MIG welding) to enable regulation of the fol-
lowing functions:
- Arctrim or electronic inductance to ensure welding operations with lim-
ited spattering when the value is set at 030%.
- Soft-start regulation: sets a speed based on a percentage of the main set-
ting; soft-start ensures that the wire approaches the welding piece at
reduced speed and, on contact with the welding piece, resumes the main
speed set. This helps to avoid irregular starts (initial arc interruptions). The
setting is based on the set current, wire diameter and type, and shielding
gas used.
- Regulation of initial motor slope up time: sets slope up time to avoid
spattering at the beginning of the welding operation, caused by the thermal
inertia of the wire and the welding material. The setting is based on the set
current, wire diameter and type, and shielding gas used.
- Spot-welding time regulation: sets, by means of selector B welding time
in position SPOT.
- Burn-back time regulation: regulates the delay between the motor and
power shutdown to guarantee clean detachment of the droplet that forms at
the end of the welding operation. The setting is based on the set current, the
wire diameter and type, and shielding gas used.
The values that can be set for these parameters are as follows:
Electronic inductance
Soft-start
Motor slope up time
Spot-welding time
Burn-back time
N.B. To inhibt the soft-start function, set the value at 100.
3.
When the selector is set to position 3 (TIG welding), there are no parame-
ters to adjust.
3.3
STORING WELDING PARAMETERS
Warning: this operation is only possible when the MIG welding process is
selected.
PROGRAM NO.
Pr 1
CONTROL PANEL DESCRIPTION AND FUNCTIONS
MINIMUM
MAXIMUM
UNIT OF
VALUE
VALUE
MEASUREMENT
100
030
%
100
000
%
00.1
1.50
SEC
00.1
10.0
SEC
0.01
1.00
SEC
WIRE TYPE
GAS TYPE
Fe Ø 0.6
80Ar20CO2
This procedure enables the user to save the following welding parameters simul-
taneously:
- Welding voltage.
- Welding wire speed.
- Electronic inductance or arctrim.
- Soft-start value.
- Motor slope up time.
- Spot-welding time.
- Burn-back time.
3.3.1 STORE PROCEDURE: SAVING WELDING PROGRAMS
1.
Press the PROG key
the last program selected since the power source was switched on.
2.
Use the encoder potentiometer (Ref. E - Fig. 1 page 3) to scroll through the
various channels; select the channel number in which to save the relative
parameters (programs 10 to 20 only are available for this operation; pro-
grams 1 to 9 are fixed pre-stored programs).
3.
Press the PROG key
of the pre-selected channel starts to flash on the instrument.
4.
Press the SCROLL key
all parameters.
5.
Press the MODE key
N.B. Exit the procedure at any time by pressing the MODE key (ESCAPE func-
tion).
3.3.2 LOAD PROCEDURE: LOADING A PREVIOUSLY STORED WELDING PRO-
GRAM
1.
Press the PROG key
since the power source was switched on, is displayed on the instrument.
2.
Use the encoder potentiometer E to scroll through channels 1 to 20, and
select the relative program to be loaded.
3.
Press the PROG key
the pre-selected channel starts to flash.
4.
Press the PROG key
5.
Press the MODE key
N.B. Exit the procedure at any time by pressing the MODE key (ESCAPE func-
tion)
To check the contents of a pre-stored program, carry out the load procedure,
press the MODE key; use the scroll key (STORE) to check the stored parameter
values.
STORED PROGRAMS
WELDING
THICKNESS
0.8 mm
(GB) 6
instrument F displays the message "Pr 1" or
again to confirm the parameter; the number
(which functions as the store key) to store
to exit the programming mode.
Pr 1 message, or the last program selected
again to confirm the program; the number of
again to load the previously stored program.
to exit the programming mode.
WELDING PIECE
POSITION
GB
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