TROUBLESHOOTING
0463 428 001
- 12 -
© ESAB AB 2017
TROUBLESHOOTING
Service log
For troubleshooting purposes, a service log can be retrieved from the memory of the
welding power source. For information about how to extract and interpret the service log,
see the TROUBLESHOOTING chapter in the
power source
service manual. The script file
needed to extract the service log, can be downloaded from your local country or region
ESAB partner login site.
Troubleshooting the electrical hardware
Equipment
•
Multimeter
Measuring the incoming 24 V supply voltage
1.
Disconnect the cooling unit from the welding power source and the welding torch.
Then remove the cooling unit panels according to chapter
“Disassembly and
reassembly”
, page 18.
2.
Place the welding power source next to the cooling unit, connect the internal CAN
cable between the power source and the cooling unit and turn the power source
mains supply switch on.
3.
Measure the incoming 24 V supply voltage from the power source to the cooler board
between pins 3 and 2 of connector CN1 on the cooler board 5AP1. The voltage
should be
25 ±2 V
.
If the measurement specification is
not
met, disconnect the CAN cable and measure
the output voltage from the CAN connector (Internal CAN) on the power source.
If there are 25 ±2 V in the power source CAN connector but no voltage on connector
CN1 on the cooler board (with CAN cable connected), replace the CAN cable.
If the output voltage from the power source CAN connector is
not
within the
specification given above, troubleshoot the power source (see the
TROUBLESHOOTING chapter in the
power source
service manual).
If the measured incoming supply voltage to the cooler board is within the specification given
above, proceed by troubleshooting the applicable components below.
