Daihen OTC Welbee M350L, Owner'S Manual

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9-1
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 and how to cope with them in case of lighting/flashing
of the "WARNING" LED and "Temperature WARNING" LED on the operation panel.
If any error occurs in the welding power source, the operation panel will indicate it as below:
• The "WARNING" LED and the "Temperature WARNING" LED light/flash
• 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 ( 6.7.2.14
-
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".
• 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. ( 6.7.2.2
-
F4: Auto/Semi-auto mode)