Universal Robots UR5 Service Manual page 105

C50A29 Analog I/O error (-12V too high)
C50A30 Analog I/O error (-12V too low)
C50A31 The other safetySYS do not initialize
C50A40 Wrong voltage from Power supply1
C50A41 Wrong voltage from Power supply2
Voltage will not disappear from
C50A42
Power supply
Warning, waiting for CB2 type
C50A43
answer from primary processor
Processor A 3.3V supply voltage out
C50A50
of bounds
C50A51 Robot voltage below threshold
C50A52 Robot voltage above threshold
C50A53 58V generator deviation error
C50A54 5V regulator too low
C50A55 5V regulator too high
C50A56 -4V generator too low
C50A57 -4V generator too high
Last CPU reset caused by Low-Power-
C50A80
Reset
Last CPU reset caused by Window-
C50A81
Watchdog-Reset
Last CPU reset caused by
C50A82
Independent-Watchdog-Reset
Last CPU reset caused by Software-
C50A83
Reset
Last CPU reset caused by External-
C50A84
Pin-Reset
Last CPU reset caused by Brown-Out-
C50A85
Reset
C50A99 Wrong software on PCB
Cable not connected
C50A100
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The safety control board was reset on
explicit request.
Robot Problem: Robot Cable is not
detected
105
Check cable and connections between robot and control box
Servicemanual_UR5_en_3.2.0