The use of the torch trigger can managed in 2 ways: 2 times or 4 times.
2 times : when the trigger is pressed, the weld starts. When the trigger is released, the weld stops.
4 times: when the trigger is pressed for the rst time, the weld starts When the trigger is released, the weld continues. When the trigger is pressed
for the second time, the weld stops. This will allow the operator to weld for an extended period of time without having to hold the trigger.
4 seconds after the weld has started, if no current is measured, the unit immediately interrupts the weld (only on Nomadfeed 425-4).
At the end of the weld, the unit automatically manages the fusion of the wire at the end of the torch and the gas protection.
Thermal protection:
The thermal protection of the unit will kick in if the temperature of the conductors is excessive. In that case, the L05 LED activates and it is not possible
to weld while the temperature remains too high. If the thermal protection kicks in, leave the unit to cool down for 15 minutes.
Unit controls panel (only on Nomadfeed 425-4) :
The settings of the unit can be changed using an SW 8 switch box on the electronic converter. To access the box, it is required to place the metal
case where the 4 buttons and the fuse holder are. This operation must be carried out by a qualied technician and when the unit is disconnected
from the power source.
SW
Factory setting :
Werkseinstellungen :
DIP switch settings
DIP-Switch Einstellungen
Display hold on
Displaysperre aktiviert
Display hold off
Displaysperre deaktiviert
Welding current display on
Anziege des Strom aktiviert
Welding current display off
Anziege des Strom deaktiviert
Wire speed display : m/min
Anziege der Drahtgeschwindigkeit : m/min
Wire speed display : in/min
Anziege der Drahtgeschwindigkeit : in/min
Mode diagnostic désactivé
Service mode off
Diagnosemodus deaktiviert
Mode diagnostic activé
Service mode on
Diagnosemodus aktiviert
Étalonnage du courant désactivé
Current calibration off
Kalibrierung Strom deaktiviert
Étalonnage du courant activé
Current calibration on
Kalibrierung Strom aktiviert
Étalonnage de la tension (+) désactivé
Voltage (+) calibration off
Kalibrierung Spannung (+) deaktiviert
Étalonnage de la tension (+) activé
Voltage (+) calibration on
Kalibrierung Spannung (+) aktiviert
Étalonnage de la tension (-) désactivé
Voltage (-) calibration off
Kalibrierung Spannung (-) deaktiviert
Étalonnage de la tension (-) activé
Voltage (-) calibration on
Kalibrierung Spannung (-) aktiviert
Wire speed calibration off
Kalibrierung Drahtgeschwindigkeit deaktiviert
Wire speed calibration on
Kalibrierung Drahtgeschwindigkeit aktiviert
1
2
3
4
5
6
7
8
Precisions regarding function SW4 :
This function gives access to totalisators of events that happened when the unit was used and shown as functions Fc1 to Fc6, displayed on the top
screen. Change the function by using buttons 10 and 11.
FunctionDescription
Fc1
Torch trigger information test. The bottom screen will display 888 when the trigger is pushed. It will stop displaying when the trigger
is released.
Fc2
Amount of welding cycles performed. Display unit: 1000 cycles. The display follows 3 steps: 3 digits of heavy weights for 2s, 3 digits
of light weights for 2s and no information for 2s.
Fc3
Total amount of time the unit was switched on. Display unit : 1 hour. The display follows 3 steps: 3 digits of heavy weights for 2s, 3
digits of light weights for 2s and no information for 2s.
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