Front Control Panel; Set Up - Selco ETG 402 Manuel D'instructions

3.2 Front control panel

1 Power supply
Indicates that the equipment is connected to the mains
and is on.
2 General alarm
Indicates the possible intervention of protection devices
such as the temperature protection.
3 Power on
Indicates the presence of voltage on the equipment
outlet connections.
4 7-segment display
Allows the general welding machine parameters to be
displayed during start-up, settings, current and voltage
readings, while welding, and encoding of the alarms.
Amperes
Volts
5 Main adjustment handle
Allows the welding current to be continuously adjusted.
This current is unchanged during the welding if the
power supply and welding conditions vary within the
ranges indicated in the technical characteristics.
In MMA welding, the presence of HOT-START and
ARC-FORCE ensures that the average output current
can be higher than the one set.
Allows adjustment of the selected parameter on graph 6.
The value is shown on display 4.
6 Welding parameters
The graph on the panel allows the selection and adjust-
ment of the welding parameters.
Welding current
Permits adjustment of the welding current.
Parameter set in Amps (A).
Minimum 30A, Maximum Imax, Default 100A
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%
24
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 0%
7 Selection parameters
Allows entry to set up, the selection and the setting of
the welding parameters.
8 Welding process
Allows the selection of the welding procedure.
Electrode welding (MMA)
ARC AIR
TIG welding
9 Control methods
From front panel "internal"
From remote panel "external"
10 Signal cable input
Allows connection of the external devices such as RC.
11 Off/On switch
Turns on the electric power to the welder.
It has two positions, "O" off, and "I" on.

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
7again.
To exit the set-up, go to parameter "O" (save and quit) and
press key 7.
List of set up parameters
0 Save and quit
Allows you to save the changes and exit the set up.
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.