Controller Not Responding - ABB IRC5 Operating Manual

3.2 Controller not responding

Description
This section describes the possible faults and the recommended actions for each
failure:
Consequences
System cannot be operated using the FlexPendant.
Possible causes
1
2
3
Operating manual - Troubleshooting IRC5
3HAC020738-001 Revision: AA
• Robot controller not responding
• LED indicators not lit
Symptoms
Controller not connected to the
mains power supply.
Main transformer is malfunction-
ing or not connected correctly.
Main fuse (Q1) might have
tripped.
© Copyright 2005-2018 ABB. All rights reserved.
3 Troubleshooting by fault symptoms
3.2 Controller not responding
Recommended action
Ensure that the mains power supply is working and
the voltage level matches that of the controller re-
quirement.
Ensure that the main transformer is connected cor-
rectly to the mains voltage level.
Ensure that the mains fuse (Q1) inside the controller
is not tripped
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