Universal Robots UR5 Service Manual page 106

Short circuit in robot detected or
C50A101 wrong robot connected to control
box
C50A102 Voltage rising too slowly
Voltage failed to reach acceptable
C50A103
level
C51 CRC check failure on secondary bus
C51A0 Processor B
Primary screen processor
C51A1
Secondary screen processor
C51A2
C51A3 Primary E67
C51A4 Secondary E67
C53 IO overcurrent detected
IO overcurrent detected, max is
C53A1
800mA
C53A2 IO overcurrent detected, max is
600mA
Safety system error
C55
Safety relay error (minus connection)
C55A23
Safety relay error (plus connection)
C55A24
Safety relay error (a relay is stuck)
C55A33
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Robot Problem: 48V power supply or
wrong robot type
Robot Problem: 48V power supply
Robot Problem: 48V power supply
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
Tool error
Safety system malfunction
Current distributor error
Current distributor error
Current distributor error
106
Check robot type. Look for short circuit in cable and in robot
arm.
Remove all external connections to I/O's. Check for short circuit
Remove all external connections to I/O's. Check for short circuit
Remove all external connections to I/O's. Check for short circuit
a) Check Motherboard, Safety Control Board, Screenboard,
Current distributor (Euromap, if installed).
b) Check safety devices and cables/connections to these
devices.
c) Do a Complete rebooting sequence as per section 5.3.7
a) Check cable from Safety Control Board to Current distributor
or 48V Power supply and Current distributor for issues
b) Do a Complete rebooting sequence as per section 5.3.7
a) Check cable from Safety Control Board to Current distributor
or 48V Power supply and Current distributor for issues
b) Do a Complete rebooting sequence as per section 5.3.7
a) Check cable from Safety Control Board to Current distributor
or 48V Power supply and Current distributor for issues
b) Do a Complete rebooting sequence as per section 5.3.7
Servicemanual_UR5_en_3.2.0