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Chapter 9
T
roubleshooting
Chapter 9 Troubleshooting
This chapter explains the typical troubleshooting for the welding power source.
The cause of problems can be categorized as below:
• Mechanical problems (e.g., problems of driving mechanism of the wire feeder)
• Electric and control problems
• Operational errors
A problem may become complicated as a result of mix of multiple causes. If a problem has occurred in the welding power
source, it is necessary to identify its cause and address it appropriately.
For question concerning problems, contact your dealer.
9.1 Action in Case of Error
This section explains the causes of abnormalities displayed on the operation panel and how to cope with them.
If any error occurs in the welding power source, the operation panel will indicate it as below:
•
An error message is displayed on the LCD panel
•
An error code flashes on the left/right digital meters
The welding power source may stop or may not stop output depending on the type of error code. The meanings of (*1)
and (*2) in the table below are as follows.
•
*1: When the error occurs, the welding power source stops the output.
•
*2: Even when the error occurs, the welding power source does not stop the output. To stop the output, set the internal
function F19 to "ON". (
6.7.1
-
Setting procedure)
Details on the internal function F19 (
6.7.2.16
-
F19: Switching alarm setting)
Check the error code displayed and take an appropriate action according to the table below.
(If the welding power source is combined with robots manufactured by OTC, see the instruction manual of the robot
controller.)
• Before inspecting the welding power source, make sure to read "8.1
-
Precautions for
Maintenance and Inspection".
CAUTION
• If an error code not listed in the table is displayed, write it down on paper, turn off the
power switch and contact your dealer.
Do not turn on the power switch because it may indicate a serious problem of the
welding power source.
Error
-
code
Error cause
Action and how to cancel error
E-
000
There is no load between the STOP
terminals (*1)
•
Identify the cause of no load between the STOP terminals (3-4) of the terminal
block TM3 for external connection.
•
How to clear the error code indication differs depending on the setting of internal
function F4. (
6.7.2.3
-
F4: Auto/Semi-auto mode)
E-
010
The torch switch was on when the power
switch was turned on (*1)
•
Check that the torch switch is not on (not pressed).
•
If the internal functions F29 to F32 are set to "4" (activate), check also the
connections of the terminal blocks for external connection. (
6.7.2.22
-
F29 to
F32: External input terminal setting)
•
The error code will disappear when the status above is resolved.
E-
011
After torch switch was turned ON, 5 seconds
have passed without arc start. (*1)
•
Check that the torch switch is not ON (not pressed).
•
Occurrence of this abnormality can be avoided by turning OFF internal function
F78. If occurrence of this error is not desired, turn OFF internal function F78.)
•
The error code will disappear when the status above is resolved.
