voestalpine bohler welding URANOS 1500 TLH Manual De Instrucciones página 26

8 Welding process
Allows the selection of the welding procedure.
Electrode welding (MMA)
TIG welding
In 2 Step, pressing the button causes the gas to flow and
strikes the arc; when the button is released the current
returns to zero in the slope descent time; once the arc
is extinguished, the gas flows for the post-gas time.
In 4 Step the first pressure on the button causes the gas
to flow, performing a manual pre-gas; when it is
released the arc is struck.
The following pressure and the final release of the but-
ton cause the current slope descent and the post-gas
time to start.
9 Current pulsation
CONSTANT current
PULSED current
MEDIUM FREQUENCY current
3.2.1 Set up
Permits set-up and adjustment of a series of additional param-
eters for improved and more accurate control of the welding
system.
Entry to set-up: press key 7 for 3 sec. (the central zero on the
7-segment display confirms entry).
Selection and adjustment of the required parameter: rotate
the encoder until you display the numerical code for the
required parameter. By pressing key 7 at this point, you can
display the value set for the parameter selected and adjust it.
Exit from set-up: to quit the "adjustment" section, press key 7
again.
To exit the set-up, go to parameter "O" (save and quit) and
press key 7.
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.
2 MMA Synergy
Allows you to set the best arc dynamics, selecting the
type of electrode used:
0 Basic
1 Rutile
2 Cellulose
3 Steel
4 Aluminium
5 Cast iron
Default 0
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.).
26
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%
4 Arc force
Allows adjustment of the Arc force value in MMA.
Permits an adjustable energetic dynamic response in
welding, facilitating the welder's operations.
Parameter set as a percentage (%) of the welding current.
Minimum Off, Maximum 500%, Default 30%
5 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 operat-
ing conditions that occur. In the spot welding phase,
for example, a low arc detachment voltage reduces
re-striking of the arc when moving the electrode away
from the piece, reducing spatter, burning and oxidisa-
tion 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 44.5V
6 Antisticking enable
Permits enabling or disabling of the antisticking function.
The antisticking function permits reduction of the weld-
ing current to 0A in the event of a short circuit occurring
between the electrode and the piece, protecting the
gun, electrode and welder and guaranteeing safety in
the condition that has occurred.
0 Antisticking active
1 Antisticking not active
7 Arc force cut-in threshold
Permits adjustment of the voltage value at which the
power source supplies the current increase typical of
the arc force.
Allows you to obtain different arc dynamics:
Low threshold: infrequent use of arc-force creates a
very stable but not very reactive arc (ideal for expert
welders and for easy-to-weld electrodes).
High threshold: frequent use of arc-force creates a
slightly more unstable but very reactive arc, able to cor-
rect user errors or compensate for the electrode char-
acteristics (ideal for inexpert welders and for difficult-to-
weld electrodes).
Parameter set in Volts (V).
Minimum 0V, Maximum 99.9V, Default 8V
40 Measurements
Permits selection of the type of measurement to be
shown on the display 4.
0 Real current
1 Real voltage
2 No measurement
Default 0
41 Machine ventilation start temperature
Minimum 0°C, Maximum 39°C, Default 25°C