Universal Robots UR10 Service Manual page 77

C50A43 Warning, waiting for CB2 type
answer from primary
processor
C50A50 Processor A 3.3V supply voltage
out 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
C50A80 Last CPU reset caused by Low-
Power-Reset
C50A81 Last CPU reset caused by
Window-Watchdog-Reset
C50A82 Last CPU reset caused by
Independent-Watchdog-Reset
C50A83 Last CPU reset caused by
Software-Reset
C50A84 Last CPU reset caused by
External-Pin-Reset
C50A85 Last CPU reset caused by
Brown-Out-Reset
C50A99 Wrong software on PCB
C50A100 Cable not connected
C50A101 Short circuit in robot detected
or wrong robot connected to
control box
C50A102 Voltage rising too slowly
C50A103 Voltage failed to reach
acceptable level
C51 CRC check failure on
secondary bus
C51A0 Processor B
C51A1 Primary screen processor
C51A2 Secondary screen processor
C51A3 Primary E67
C51A4 Secondary E67
C53 IO overcurrent detected
C53A1 IO overcurrent detected, max
is 800mA
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Robot Problem: Robot Cable is
not detected
Robot Problem: 48V or wrong
robot type
Robot Problem: 48V
Robot Problem: 48V
CRC check failure on Safety
processor 1 in Teach pendant
CRC check failure on Safety
processor 2 in Teach pendant
Safety Control Board error
Safety Control Board error
77
Check robot type. Look for
short circuit in cable and in
robot arm.
Remove all external
connections to I/O-
interface of Safety Control
Board. Check for short
circuit
Remove all external
connections to I/O-
interface of Safety Control
Board. Check for short
circuit
Servicemanual_UR10_en_3.1.3