Universal Robots UR5 Service Manual page 113

7. Troubleshooting
C34A1 Program flash
checksum failed at
runtime
C35 Joint ID is undefined
C36 Illegal bootloader
command
C37 Inbuffer parse error
C38 Online RAM test
failed
C38A1 Data-bus test failed
C38A2 Address-bus stuck-
high test failed
C38A3 Address-bus stuck-
low test failed
C38A4 Address-bus shorted
test failed
C38A5 Memory-cell test
failed
C39 Logic and Temporal
Monitoring Fault
C39A1 Max current deviation
failure
C39A2 Max joint-encoder
speed exceeded
User Manual
Debug message
Serial communication
problem with joint
107
Update Firmware
Ignore
Check black 2-wire
connectors and wires in
joints
Check the log file for what
item is reporting this error.
Replace the reporting item
Check the log file for what
item is reporting this error.
Replace the reporting item
Check the log file for what
item is reporting this error.
Replace the reporting item
Check the log file for what
item is reporting this error.
Replace the reporting item
Check the log file for what
item is reporting this error.
Replace the reporting item
Check the log file for what
item is reporting this error.
Replace the reporting item
a) Do a Complete rebooting
sequence as per section
5.3.7
b) If this happens more
than two times in a row,
replace joint
a) Do a Complete rebooting
sequence as per section
5.3.7
b) If this happens more
than two times in a row,
replace joint
UR5