ESAB Caddy Tig 1500i TA34, Service Manual

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FAULT CODES
0740 800 186 - 37 - © ESAB AB 2016
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 in chapter "Service
Instructions".
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 = welding data unit U2 = power source U4 = remote control unit
Summary of fault codes
Cod
e
Description
Welding
data unit
Power
source
Remote
control
unit
*1 Memory error, EPROM x x x
*2 Memory error, RAM x x
*3 Memory error, external RAM x x
4 +5 V power supply x
6 High temperature x
*8 Power supply 1 x
*9 Power supply 2 x
12 Communication error (warning) x x x
*14 Communication error (bus off) x
15 Lost messages x x x
16 High open-circuit voltage (VRD) x
*18 Lost contact with the power source x
*19 Memory error in data memory x
*22 Transmitter buffer overflow x x
*23 Receiver buffer overflow x x
*26 Program operating fault x
*28 Stack overflow x x
*40 Incompatible units x
Fault codes marked with an asterisk ( * ) are not displayed by the control panel. but they are
stored in the fault log. To get access to the fault log use the ESAT service tool. See chapter
"Service Instructions".