Universal Robots UR5 Service Manual

7.Troubleshooting
In the error codes, different words have been used for the same thing:
• On the Safety Control Board: Processor A = A uP = SafetySys1
• On the Safety Control Board: Processor B = B uP = SafetySys2
Abbreviations in the troubleshooting chapter
PSU = Power Supply
PC = Controller
Open log files with Support Log Reader(SLR).
Go to www.universal-robots.com/support/ to download Support Log Reader
7.1. Error code
• On the Safety Control Board: Processor A = A uP = SafetySys1
• On the Safety Control Board: Processor B = B uP = SafetySys2
• PSU = Power Supply
• PC = Controller
• LVD = Low Voltage Detected
Error code Description Explanation Suggestion
C0A No error Communication established Log entry only, no issue
C1A1 Buffer of stored
warnings overflowed
C1A2 Outbuffer to RS485
overflowed (problem
with Controller
message)
C2A Inbuffer overflow
C3A Processor
overloaded
Review program or remove
some external controls and
communications
UR5 94 Service Manual
7.Troubleshooting
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Universal Robots UR5 Specifications

General

Brand	Universal Robots
Model	UR5
Category	Robotics
Language	English