Universal Robots 2014350001, Service Manual, Page: 193 / 238

C309A Critical error A critical error occurred in
the Keep-Alive System a) Conduct a complete
rebooting sequence
b) Update software
c) Contact your local
Universal Robots service
provider for assistance
C309A0 Keep-Alive System Critical error
C309A1 Keep-Alive System Keep-Alive System
message with wrong
sequence received from
SCB-uPA.
C309A2 Keep-Alive System Timeout reached while
waiting for a Keep-Alive
System message from SCB-
uPA.
C309A3 Keep-Alive System Go-to-Fault command
received a Keep-Alive
System message from SCB-
uPA.
C309A4 Keep-Alive System A Keep-Alive System
message with wrong
sequence received from
SCB-uPB.
C309A5 Keep-Alive System Timeout reached while
waiting for Keep-Alive
System message from SCB-
uPB.
C309A6 Keep-Alive System Go-to-Fault command
received in Keep-Alive
System message from SCB-
uPB.
C309A7 Keep-Alive System Keep-Alive System
message received from an
unauthorized source
C309A8 Keep-Alive System uPA handler received an
invalid value
C309A9 Keep-Alive System uPB handler received an
invalid value
Service Manual 187 UR5
7. Troubleshooting
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