Selco WF 430 ArcDrive Classic Manuel D'instructions page 36

16 Gas test button
Allows the gas circuit to be cleansed of impurities and
the carrying out of the appropriate preliminary gas pres-
sure and flow adjustments, without power on.
17 Inductance
Allows electronic regulation of the series inductance of
the welding circuit.
Low inductance = reactive arc (more spatter).
High inductance = less reactive arc (less spatter).
Minimum -30, Maximum +30, Default syn
18 Soft start (WF...Classic)
Permits adjustment of the wire feed speed in the phases
prior to arc striking.
Given as a % of the wire speed set.
Permits striking at reduced speed, therefore softer and
with less spatter.
Minimum 10%, Maximum 100%, Default 50%
Burn back (WF...Classic)
Permits adjustment of the wire burn time, preventing
sticking at the end of welding.
Permits adjustment of the length.
Permits adjustment of the length of the piece of wire
outside the torch.
Minimum -2.00, Maximum +2.00, Default syn
3.3 Set up
Permits set up and adjustment of a series of additional parameters
for improved and more accurate control of the welding system.
The parameters present at set up are organised in relation to the
welding process selected and have a numerical code.
Entry to set up: by pressing the encoder key for 5 sec.
Selection and adjustment of the required parameter: by turning
the encoder until displaying the numerical code relating to that
parameter. If the encoder key is pressed at this point, the value set
for the parameter selected can be displayed and adjusted.
Exit from set up: to quit the "adjustment" section, press the
encoder again.
To exit the set up, go to parameter "O" (save and quit) and press
the encoder.
3.3.1 List of set up parameters (MMA)
0 Save and quit
Allows you to save the changes and exit the set up.
1 Reset
Allows you to reset all the parameters to the default
values.
3 Hot start
Allows adjustment of the hot start value in MMA.
Permits an adjustable hot start in the arc striking phases,
facilitating the start operations.
Parameter set as a percentage (%) of the welding current.
Minimum Off, Maximum 500%, Default 80%
7 Welding current
Permits adjustment of the welding current.
Parameter set in Amps (A).
Minimum 3A, Maximum Imax, Default 100A
8 Arc force
Allows adjustment of the Arc force value in MMA.
Permits an adjustable energetic dynamic response in
welding, facilitating the welder's operations.
Increasing the value of the arc force to reduce the risks
of sticking of the electrode.
Parameter set as a percentage (%) of the welding current.
Minimum Off, Maximum 500%, Default 30%
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204 Dynamic power control (DPC)
It enables the desired V/I characteristic to be selected.
I = C Constant current
The increase or reduction in arc length has no effect on
the welding current required.
Basic, Rutile, Acid, Steel, Cast iron
1÷ 20* Falling characteristic with adjustable slope
The increase in arc length causes a reduction in welding
current (and vice versa) according to the value imposed
by 1 to 20 amps per volt.
Cellulose, Aluminium
P = C* Constant power
The increase in arc length causes a reduction in the
welding current (and vice versa) according to the law:
V.I = K.
Cellulose, Aluminium
205 MMA Synergy
Allows you to set the best arc dynamics, selecting the
type of electrode used:
1 Standard (Basic/Rutile)
2 Cellulose
3 Steel
4 Aluminium
5 Cast iron
Default standard (1)
Selecting the correct arc dynamics enables maximum
benefit to be derived from the power source to achieve
the best possible welding performances.
Perfect weldability of the electrode used is not guaran-
teed (weldability depends on the quality of the consum-
ables and their preservation, the operating and welding
conditions, the numerous possible applications, etc.).
312 Arc detachment voltage
Allows you to set the voltage value at which the electric
arc switch-off is forced.
It permits improved management of the various operating
conditions that occur. In the spot welding phase, for exam-
ple, a low arc detachment voltage reduces re-striking of
the arc when moving the electrode away from the piece,
reducing spatter, burning and oxidisation of the piece.
If using electrodes that require high voltages, you are
advised to set a high threshold to prevent arc extinction
during welding.
Never set an arc detachment voltage higher than
the no-load voltage of the power source.
Parameter set in Volts (V).
Minimum 0V, Maximum 99.9V, Default 57V
500 Allows the selection of the required graphic interface:
Allows access to the higher set-up levels:
USER: user
SERV: service
SELCO: Selco
551 Lock/unlock
Allows the locking of the panel controls and the inser-
tion of a protection code (consult the "Lock/unlock"
section).