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1sxx02cw
FAULT CODES
Fault codes are used in order to indicate and identify a fault in the equipment.
Fault log
All faults that occur when using the welding equipment are documented as error messages
in the fault log. When the fault log is full, the oldest message will automatically erase when
the next fault occurs.
Only the most recent fault message is displayed on the control panel. To read the entire
fault log, the machine must be connected to the ESAT: see service tools on page 55. Faults
are monitored/detected in two ways: by test routines that are run on initiation and by
functions that can detect a fault when it occurs.
The control panel displays a unit number to indicate which unit has generated the fault. The
following unit numbers are used:
U0 = control panel
U2 = power source
U3 = wire feed unit
U4 = remote control unit
Fault
code
Description Control
panel
Power
source
Wire fe-
ed unit
Remote
control
unit
1
Memory error, EPROM x x x x
2
Memory error, RAM x x x
3
Memory error, external RAM x x
4
+5 V power supply x x
5
Intermediate DC voltage outside limits x
6
High temperature x
8
Power supply 1 x x x x
9
Power supply 2 x x x
10
Power supply 3 x
11
Wire feed speed servo x
12
Communication error (warning) x x x x
14
Communication error (bus off) x
15
Lost messages x x x
16
High open--circuit voltage x
17
Lost contact with the wire feed unit x
18
Lost contact with the power source x
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