System Presentation; Generalities; Front Control Panel - voestalpine Böhler TERRA 220 RC Instrucciones De Uso

Connection for TIG welding
- Connect (5) the earth clamp to the positive socket (+) (6)
ofthe power source.
- Connect the TIG torch coupling (7) to the torch socket (-) (8)
ofthe power source.
- Separately connect (9) the torch gas hose connector to the gas
main.
The protection gas flow can be adjusted using
the tap normally found on the torch.

3 SYSTEM PRESENTATION

3.1 Generalities

These constant current inverter power sources are able to per-
form the following types of welding with excellent results:
- MMA,
- TIG with contact ignition with reduction of short circuit cur-
rent (TIG LIFT-START).
In inverter welders, the output current is unaffected by vari-
ations in the supply voltage and the length of the arc, and is
perfectly levelled, giving the best welding quality.

3.2 Front control panel

1 VRD Voltage Reduction Device
Shows that the no-load voltage of the equipment is
controlled.
2 General alarm
Indicates the possible intervention of protection devices
such as the temperature protection (consult the "Alarm
codes" section).
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.
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.
Allows entry to set up, the selection and the setting of
the welding parameters.
6 Welding parameters
The graph on the panel allows the selection and adjust-
ment of the welding parameters.
I Allows the welding current to be continuously adjust-
ed.
I% 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%
I% 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%
7 Welding process
Allows you to set the best arc dynamics, selecting the
type of electrode used.
Electrode welding (MMA)
Basic
Rutile
Acid
Steel
Cast iron
Electrode welding (MMA)
Cellulose
Aluminium
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.).
TIG LIFT START welding
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