Universal Robots ur3 Service Manual

C44A2 Elbow
C44A3 Wrist 1
C44A4 Wrist 2
C44A5 Wrist 3
C44A6 Tool
C44A80 CRC Check failure
on primary bus.
Interference on the
communication field bus.
C45A AD-Converter error
C46A Loose gearbox or
bad encoder
mounting
Mechanical problem in gear
related to encoder mounting
a) Do a Complete rebooting
sequence
b) If this happens more than
two times in a row, replace
joint
C47A AD-Converter hit low
limit
EMC issue external or
electronics internal
Check grounding and
shielding for EMC problems
C49A RS485 receive
warning
C49A200 Secondary RS485
bus is down
Bus for: Teach Pendant,
Processor A and Processor
B on Control Board
Check TCP/IP-12V cable to
Teach Pendant
C50A Robot powerup issue Electrical error control box Remove all external
connections to I/O-interface
of Safety Control Board.
Check for short circuit
C50A1 Voltage detected at
24V rail before
startup
C50A2 Voltage present at
unpowered robot
C50A5 Powersupply voltage
too low
Check 48 V cable between
power supply and Control
Board
C50A6 Powersupply voltage
too high
C50A11 Voltage not detected
at 24V rail after
startup
C50A15 Warning, waiting for
SafetySYS2
UR3 102 Service Manual
7.Troubleshooting
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Universal Robots ur3 Specifications

General

Brand	Universal Robots
Model	ur3
Category	Robotics
Language	English