Fault Symbols - Sigma 300 Compact Manuel D'instruction

SIGMA has a sophisticated built-in self-protection
system.
The machine automatically stops the gas supply,
interrupts the welding current and stops the wire
feeding in case of an error.
Errors are indicated by symbols and error codes.
Temperature fault:
The indicator above the icon blinks, when the
power source is overheated.
Leave the machine on until the built-in fans have
cooled it down.
Mixed transfer:
(only synergic welding programs)
The indicator is switched on and warns about
the setting area as it lies within mixed transfer with risk
of welding spatter.
Current fault:
The indicator flashes when start current
or welding
permitted by the welding machine's efficiency.
Make sure that wire speed/current and voltage are set
correctly.

Fault symbols:

The indicator below the icon blinks when other
types of errors occur. At the same time a fault
symbol is shown in the display.
Selected error codes:
Torch cooling fault:
Cooling fault is shown in case of
no circulation of the cooling liquid due to faulty
connection or choking.
Check that the cooling hoses are correctly connected,
top up the water tank and check welding hose and
branches.
The cooling fault is cancelled by pressing shortly on
the –key pad.
Mains supply fault:
The icon will be shown, when the
mains voltage is too high.
Connect the welding machine to 400V AC, +/-15%
50-60Hz.
or
Wire feed fault:
The icon will be shown, if the wire feed motor is
overloaded.
The wire feed motor or magnet valve may be
defective.
FAULT SYMBOLS
current is higher than
OTHER TYPES OF FAULTS
If other fault symbols are shown in the display, the
machine shall be switched off and then on to dispose
of the symbol.
If the fault symbol is shown repeatedly, repair of the
power source is required. Contact your distributor with
information of the fault.
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