(This post is a Wiki, experienced developers can modify the content) This post describes the electrical interfaces of a Universal Robot, UR3, UR5 or UR10. There are electrical interfaces (analog and digital) in the controlbox and at an M8 connector at the tool. Control box 16 digital inputs (0/2…

Dear Jacob, thanks for sharing data on electrical interfaces. A couple of questions about this: Is the 600 mA limitation a continuos or peak value? What is the other value? What is the maximum duration of the peak value? Thanks and Best Regards.

@anon28291296 , The constant current drain of the tool is 600 mA. A peak above this should be no longer than 1 ms. The actual peak current capability is not rated. This is valid for both CB2 and CB3 robots.

Any digital input other than the configurable inputs can be configured to by a play/pause/stop/freedrive input. It would be nice if those could be configured as well

Any control box input can be set up for this, including the tool inputs.

Jacob, I cannot see a way to set configurable inputs to these functions like I can standard and tool inputs. Here is a screenshot of a standard digital input where it shows the IO Action dropdown menu [image] That is missing from the configurable input options [image] Am I doing something wr…

@jbm is not clear to me from both this post and the UR5 manual whether the max current drain of the tool (600mA) is related only to the internal power supply (which provides a global upper limit of 2A), or it is a strict limitation even if an external power supply is connected to the system, which r…

@anon14624655 The combined max. current draw from the Tool connector is 600 mA. The 12 V or 24 V power at the tool is generated locally on the Tool, and has nothing to do with the power in the Control box. Hence an external PSU does not change this limit. In the controlbox there is an internal PS…

Hi I am developing an end-effector, and was wondering if there are any more detailed electronic schematics of the connector/arm internals? Thank you.

Electrical diagrams are available here .

@jbm Thank you for the quick reply. I had a look at the link you sent me. Is it possible to get a more detailed description of the internal structure of the Tool_Mounting_Bracket that appears on page 5 of UR3_schmatic_drawings_rev3.0.3.1.pdf?

Electrical interfaces

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Electrical interfaces

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