voestalpine Bohler welding TERRA 500 RC Manual Del Usuario página 23

3 SYSTEM PRESENTATION
3.1 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.
3 Power on
Indicates the presence of voltage on the equipment
outlet connections.
4 Welding parameters
Not used
Current
5 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.
6 Main adjustment handle
Allows the welding (MMA) current to be continuously
adjusted.
Allows entry to set up, the selection and the setting of
the welding parameters.
7 Not used
8 Welding process
Allows the selection of the welding procedure.
Electrode welding (MMA)
2 Step
Not used
4 Step
Not used
Grinding (only with 854 active)
Selection led = off
9 Wire feed
Not used
10 Gas test button
Not used
11 Inductance
Not used
12 Soft start
Not used
Burn back
Not used
3.2 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.
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%
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
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