Universal Robots ur3 User Manual

All rights reserved 91 Servicemanual_UR3_en_rev3.1.2
5.3.4 Power on failure in Initializing
If power turns off a few seconds after Robot Power is turned On in the Initializing window, there are many
possible causes for this phenomenon.
Most likely it is a control box failure or a communication failure with a joint or the tool.
Control box failure
Replace 48V power supply
During power up (within the first three seconds of
power up) measure that 230V AC is present on
48V_PSU1 connector on current distributor PCB
Power controller OFF/ON
Measure that 12V DC is present in the red
connector/flatcable on the current distributor
Replace current distributor
Check log history for error messages and consult
the section Error Codes for detailed explanation
Replace Safety Control
Board
YES
YES
NO
NO

Universal Robots ur3 Specifications

General

Brand	Universal Robots
Model	ur3
Category	Robotics
Language	English