All rights reserved 64 Servicemanual_UR3_en_rev3.1.2
5. 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
PSU = Power Supply
PC = Controller
Open log files with Support Log Reader.
Go to http://www.universal-robots.com/support/ to download Support Log Reader
5.1 Error codes
Buffer of stored warnings
overflowed
Outbuffer to RS485
overflowed (problem with PCs
message)
Processor overloaded error
Processor in any part could
give this error.
Communication with PC lost.
Between Safety Control Board
and Motherboard
Communication with Safety
Control Board A uP lost
If either processor A or
processer B is communicating,
the Safety Control Board or
cable between the
Motherboard and Safety
Control Board is defect
a) Check TCP/IP connection
between Motherboard and
Safety Control Board. b)
Exchange Safety Control
Board
Communication with Safety
Control Board B uP lost
If either processor A or
processer B is communicating,
the Safety Control Board or
cable between the
Motherboard and Safety
Control Board is defect
a) Check TCP/IP connection
between Motherboard and
Safety Control Board. b)
Exchange Safety Control
Board
Communication with primary
Teach Pendant uP lost
If either processor A or
processer B is communicating,
the Teach Pendant or cable
between the Motherboard and
Teach Pendant is defect
a) Check TCP/IP-12V
connection between
Motherboard and Teach
Pendant. b) Exchange
Teach Pendant
Communication with
secondary Teach Pendant uP
lost
If either processor A or
processer B is communicating,
the Teach Pendant or cable
between the Motherboard and
Teach Pendant is defect
a) Check TCP/IP-12V
connection between
Motherboard and Teach
Pendant. b) Exchange
Teach Pendant
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