FAULT CODES
0740 801 028
- 49 -
© ESAB AB 2017
Code Description
8 Low battery voltage +3V
The voltage must not be less than 2.4 V. This test is preformed only as part of
initiation after power-up. This fault does not disable any functions.
Action: Replace the battery on circuit board 1AP1. If it is not replaced, the entire
contents of the battery-backed memory will be lost at power off.
9 Power supply 2
Error code from external source.
Action: Check manual for connected units.
10 Power supply 3
Error code from external source.
Action: Check manual for connected units.
11 Current servo / wire feed speed servo
Error code from external source.
Action: Check manual for connected units.
12 Communication error (warning)
The load on the system's internal CAN bus is temporarily too high.
Action: Check the equipment to ensure that only one wire feed unit and/or remote
control unit is connected.
14 Communication error (bus off)
The system's internal CAN bus has temporarily ceased to work due to excessive
load. The current welding process is stopped.
Action: Check that there are no faulty units connected to the CAN bus. Check the
cables. Turn off the mains power supply to reset the unit.
15 Lost messages
The bus CAN controller indicates that a message has been lost. No functions are
disabled by this fault.
Action: Check that all units are correctly connected to the CAN bus.
16 High open circuit voltage
Error code from external source.
Action: Check manual for connected units.
17 Lost contact with other unit
The current activities are stopped and welding start is prevented.
The error may have been caused by an open-circuit in the connection (e.g. in the
CAN cable) between the welding data unit and another unit. The applicable unit is
displayed in the error log.
Action: Check the CAN cabling.
If this error appers directly after installing a PEK, check jumper settings inside the
power source. In LAF/TAF power sources: On the AP1 board remove jumper at
CN18 from pin 1-2 and connect it only to pin 3.
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