ESAB Origo Mig L3000i Service Manual page 74

7 FAULT CODES
Code Description
16 High open-circuit voltage (VRD)The open-circuit voltage has been too high.
Action: Turn off the mains power supply to reset the unit. If the fault persists, check
the arc voltage feedback: see "20AP1:9 Arc voltage feedback", page 62.
20 High inductance in the welding circuit
The power source cannot produce the desired current because the measured
inductance in the welding circuit is too high. The fault indication is reset if the
inductance reading receives a sufficiently low value at weld start. Resetting can also
be achieved by turning off the power.
Action: Use shorter welding cables and ensure that the cables are not coiled up.
Place the welding cable and connector cable next to each other. If possible, the
inductance can be reduced by welding with a shorter arc.
22 Transmitter buffer overflow
The control board is unable to transmit information to the other units at a sufficiently
high speed.
Action: A break in the bus line can cause this fault. Check the CAN cabling. Turn off
the mains power supply to reset the unit.
23 Receiver buffer overflow
The control board is unable to process information from the other units at a
sufficiently high speed. This fault is caused by abnormal loading of the
microprocessor.
Action: Turn off the mains power supply to reset the unit.
26 Program operating fault
Something has prevented the processor from performing its normal program duties.
The program restarts automatically. The current welding process will be stopped.
This fault does not disable any functions.
This fault should never occur in reality. Contact ESAB if the fault does occur.
28 Stack overflow
The stack memory is full.
This fault should never occur in reality: the fault code is intended as an aid during
development work. Contact ESAB if the fault does occur.
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