Intermittent Errors - ABB IRC5 Operating Manual

3.15 Intermittent errors

Description
During operation, errors and malfunctions may occur, in a seemingly random way.
Consequences
Operation is interrupted, and occasionally, event log messages are displayed, that
sometimes do not seem to be related to any actual system malfunction. This sort
of problem sometimes affects the Emergency stop or Enable chains respectively,
and may at times be very hard to pinpoint.
Probable causes
Such errors may occur anywhere in the robot system and may be due to:
Recommended actions
In order to remedy the symptom, the following actions are recommended (the
actions are listed in order of probability):
1
2
3
4
5
6
Operating manual - Troubleshooting IRC5
3HAC020738-001 Revision: AA
• external interference
• internal interference
• loose connections or dry joints, e.g. incorrectly connected cable screen
connections.
• thermal phenomena , e.g. major temperature changes within the workshop
area.
Action
Check all the cabling, especially the cables in the
Emergency stop and Enable chains. Make sure all
connectors are connected securely.
Check if any indication LEDs signal any malfunction
that may give some clue to the problem.
Check the messages in the event log. Sometimes
specific error combinations are intermittent.
Check the robot's behavior, etc, each time that type
of error occurs.
Check whether any condition in the robot working
environment also changes periodically, e.g, interfer-
ence from any electric equipment only operating
periodically.
Investigate whether the environmental conditions
(such as ambient temperature, humidity, etc) has any
bearing on the malfunction.
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3 Troubleshooting by fault symptoms
Info/illustration
All indication LEDs and their
significance are specified in
section
in the controller on page
The event log messages may
be viewed either on the Flex-
Pendant or using RobotStudio.
If possible, keep track of the
malfunctions in a log or similar.
If possible, keep track of the
malfunctions in a log or similar.
3.15 Intermittent errors
Troubleshooting LEDs
63.
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