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Chapter 9
T
roubleshooting
T
ROUBLESHOOTING
T
ROUBLESHOOTING
C
HAPTER
9
9.2 Troubleshooting
This section explains the typical problems other than the error codes, their causes, and how to cope with them.
Check the table below before requesting repair service.
E-
922
Fieldbus Communication Error: No
Connection
•
Contact your dealer.
E-
950 CAN Bus Off Error
E-
951 There is a duplicate ID on a single bus (*1)
•
Turn off the power switches of all other CAN-connected welding power sources,
then turn on the power switches and check the setting of internal function F43.
(
6.7.2.26
-
F43: CAN ID)
•
The error code will disappear when the power switch is turned off.
E-
952 CAN Error
•
Contact your dealer.
E-
953 CAN Received Data Error
E-
954 CAN Error Buffer Overflow
E-
955 CAN Power Source Type Mismatch
E-
956 CAN Sending/Receiving Memory Error
E-
957 CAN Error Timeout
E-
958 CAN Error Command Receipt
E-
959 No CAN Error Connection
E-
961
Push-Pull Torch Communication Error /
Inline Assist Feeder Communication Error
• Before inspecting the welding power source, make sure to read "8.1
-
Precautions for
Maintenance and Inspection".
No.
Problem
Possible cause
Corrective action
1
The power switch has tripped.
Leak has occurred in the welding
power source.
DO NOT turn on the power switch. Contact your dealer.
2
The power LED switch does not light
even when the power switch is
turned on.
The primary power source is not
supplied.
Supply the primary power source in the following range.
WB-P402L: 208/230/460 V ±10%
WB-P502L: 460 V ±10%
3
Nothing is displayed on the left/right
digital meters even when the power
switch is turned on.
4
An error code is displayed when the
power switch is turned on.
The protection circuit has been
activated due to temperature error.
Leave it untouched (with the power on) and operate the
cooling fan for 10 minutes or more, and then turn off the
power.
After the above, clean dusts inside the welding power
source. (
8.3
-
Periodical Inspection
5
Shield gas is not flowing.
The valve of gas cylinder is closed.
Open the gas valve.
The pressure of gas cylinder is
insufficient.
Replace the gas cylinder.
Setting/handling of the external
inputs is not correct.
Check that the setting of internal functions F29 to F32 is
correct. (
6.7.2.23
-
F29 to F32: External input terminal
setting)
The external input cables are
disconnected/short-circuited.
Check that there is no abnormality in the cables
connected to the external input terminal block.
If any, repair/replace the cables.
6
Shield gas does not stop flowing.
Setting/handling of the external
inputs is not correct.
Check that the setting of internal functions F29 to F32 is
correct. (
6.7.2.23
-
F29 to F32: External input terminal
setting)
The external input cables are
disconnected/short-circuited.
Check that there is no abnormality in the cables
connected to the external input terminal block.
If any, repair/replace the cables.
Error
-
code
Error cause
Action and how to cancel error
