Troubleshooting; Oem Control Box Ac Variant; Oem Control Box Dc Variant - Universal Robots UR3e Installation Manual

9. Troubleshooting

9.1. OEM Control Box AC variant

Symptom
Control Box does not turn on.
Control Box turns on for a few
seconds then shuts down.
Robot performance is
unstable.

9.2. OEM Control Box DC variant

Symptom
Control Box does not turn on.
Control Box turns on for a few
seconds then shuts down.
Control Box does not turn on or
the robot performance is
unstable.
For complete, in depth information about the electrical configurations, see the Electrical Interface in
the UR User Manual available for download at:
Installation Guide
Possible Solution
Check that the power source is wired correctly (see
Source Wiring: AC on
Pressing the Power ON button for more than 5 seconds shuts the
Control Box down. Press the button for 1-2 seconds only.
• Check the input voltage is within specifications (see
Technical Specifications on
• Check grounding (avoid ground-loops or loose screws).
Possible Solution
• Check the power source is wired correctly (see
Power Source Wiring: DC on
• Ensure the DC source connection polarity is correct.
Reverse polarity causes permanent damage to the OEM
Control Box.
Pressing the Power ON button for more than 5 seconds shuts
the Control Box down.
Press the button for 1-2 seconds only.
• Check the DC input is within specifications in
Technical Specifications on
• Check the DC supply has enough charge to supply the
initial current to the system.
myur.universal-robots.com/manuals
page 13).
page 27)
page 17).
page 27.
4.3 Power
8.1
5.3
8.1
OEM Control Box