Universal Robots ur3 - Page 72

All rights reserved 72 Servicemanual_UR3_en_rev3.1.2
Board
CODE_55A23
Safety relay error (minus
connection)
Current distributor error
Fault: Cable SCB-Current
distributor or 48V Power
supply or Current
distributor.
CODE_55A24
Safety relay error (plus
connection)
Current distributor error
Fault: Cable SCB-Current
distributor or 48V Power
supply or Current
distributor.
CODE_55A33
Safety relay error (a relay is
stuck)
Current distributor error
Fault: Cable SCB-Current
distributor or 48V Power
supply or Current
distributor.
CODE_55A34
Safety relay error (relays are
not on)
Current distributor error
Fault: Cable SCB-Current
distributor or 48V Power
supply or Current
distributor.
CODE_55A50
Voltage present at unpowered
robot
SCB hardware fault
Replace Safety Control
Board (SCB)
CODE_55A51
Voltage will not disappear
from robot
SCB hardware fault
Replace Safety Control
Board (SCB)
CODE_55A52
5V, 3V3 or ADC error (5V too
low)
SCB hardware fault
Replace Safety Control
Board (SCB)
CODE_55A53
5V, 3V3 or ADC error (5V too
high)
SCB hardware fault
Replace Safety Control
Board (SCB)
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 Safety
Control Board
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
Voltage exceeded 55V
Check Energy Eater. Cable
to Energy eater, Replace
Energy Eater