MMA Compacto Serie Manual De Uso página 39

FAULTS LIST AND TROUBLESHOOTING
LIST OF ERRORS
This table lists the most common errors solvable by the operator following the instructions
provided. In the case of error reporting is not listed in the table below, contact the service
center providing the error reported and the number of your machine.
PROBLEM
Machine powered ON, but not working, Overtemperature alarm LED on the wire feeder ON.
Generator: display viewing the
alarm screen, message "Over T"
Wire Feeder: display showing "ot"
Generator: display viewing the
alarm screen, message "Water
Cooling"
Wire Feeder: display showing
"H2O"
Machine powered ON, but not working, red alarm LED on the wire feeder ON
Generator: display viewing the
alarm screen, message "Over
Voltage"
Wire Feeder: display showing "VIN"
Generator: display viewing the
alarm screen, message "Phase
Loss"
Generator: display viewing the
alarm screen, message "Max Iout"
Wire Feeder: display showing "IO"
Generator: display viewing the
alarm screen, message "Max
Pout"
Wire Feeder: display showing "PO"
Generator: display viewing the
alarm screen, message "Drivers
Voltage"
Machine powered ON, but not working, no alarm LED ON
Generator: display viewing the
alarm screen, no message.
Generator: display viewing the
alarm screen, message "Check
Cables"
POSSIBLE CAUSE
Thermic Protection Intervention
cause of overload, duty cycle
exceeded.
Thermic Protection Intervention
cause of overtemperature
Thermic Protection Intervention
cause of overtemperature, fan
defective or blocked
Water cooler fault
Overvoltage
Loss of one phase, problems on
a power line
The output currrent has exceeded
the safety limit.
La potenza richiesta supera la
capacità di erogazione del ge-
neratore.
Inverter fault.
Torch or torch trigger fault.
Wrong earth connection
Interconnecting Hosepack faulty
or not properly connected
Positive (+) and negative (-)
terminal in short circuit
POSSIBLE SOLUTION
Respect the duty cycle of the machine.
Allow welder to cool. The extingui-
shing of the pilot lamp on the wire
feeder front panel indicates the ther-
mostat has closed.
Free the fan from possible obstruc-
tions or replace it.
Check that water cooler is correctly
connected to the mains and to the
power generator.
Check that the water pump is
working properly.
Check the mains voltage and/or
set the power unit adequately.
Check whether the plug is properly
assembled and plugged into the
socket. Check the socket fuses.
Adjust again the operator point
parameters.
Reset the power unit.
Contattare il centro assistenza.
A macchina collegata a 220V,
limitare i parametri di saldatura.
Contact the service center.
Replace the torch trigger or the
torch.
Check the earth connection and
the correct polarity of the clamp.
C h e c k t h e I n t e r c o n n e c t i n g
Hosepack
Check for the correct connec-
tion of positive (+) and negative
terminal (-)
EN-33