Universal Robots UR5 Service Manual page 72

CODE_53ATO , max is 600mA
OL
CODE_55 Safety system error
CODE_55A23 Safety relay error (minus connection)
CODE_55A24 Safety relay error (plus connection)
CODE_55A33 Safety relay error (a relay is stuck)
CODE_55A34 Safety relay error (relays are not on)
CODE_55A50 Voltage present at unpowered robot
CODE_55A51 Voltage will not disappear from robot
CODE_55A52 5V, 3V3 or ADC error (5V too low)
CODE_55A53 5V, 3V3 or ADC error (5V too high)
CODE_55A90 Bootloader error, robot voltage too low or
current too high
CODE_55A91 Bootloader error, robot voltage too high
CODE_55A100 Safety violation
CODE_55A101 Safety Channel Error In Masterboard
CODE_55A102 Safety Channel Error In Screen
CODE_55A103 Safety Channel Error In Euromap67 Interface
CODE_55A109 Received fault message from PC
CODE_55A110 Safety State is changing too often
CODE_55A111 On/Off State is changing too often
CODE_55A112 Robot current sensors readings differ
CODE_55A120 Robot current is too high while emergency
stopped
CODE_55A121 Robot current is too high while safeguard
stopped
CODE_56 Overvoltage shutdown
CODE_57 Brake release failure
CODE_57A1 Joint did not move or motor encoder is not
functioning
CODE_57A2 Large movement detected during brake
release
CODE_57A3 Robot was not able to brake release, see log
for details
CODE_58 Motor encoder not calibrated
CODE_59 Overcurrent shutdown
CODE_62 Joint temperature
All rights reserved
Safety system
malfunction
Voltage exceeded
55V
Overcurrent in joint
72 Servicemanual_UR5_en_rev3.0.2
Check Motherboard,
Masterboard,
Screenboard, Current
distributor( Euromap, if
installed ). Bypass safety
connections to I/O-
interface of
Masterboard
Check Energy Eaters.
Replace Energy Eater
Check for short circuit.
Check program for
singularity issues.
Replace joint if
necessary