Universal Robots UR5 Service Manual page 81

5. Service and Replacement of parts
3. Remove the 4 nuts (M6) in the top and bottom of controller module.
4. Gently take out the controller module from the controller box.
5. Turn the module 90° counterclockwise and place it on the controller edge.
6. Cut the cable tie that ties the robot cable, unplug the connectors from the Safety Control
Board and remove the cable.
7. Turn the module 180° clockwise and place it on the controller edge.
User Manual 75 UR5