Dynamixel robot arm using U2D2 doubts

Technical Support
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Hello Alejandro,

Thank you for your question and welcome to the page! Based on your question, I can definitely answer and provide some additional information:

  1. All DYNAMIXELs are designed to be daisy-chainable, so only one connection back to the U2D2/Power Hub board should be required. The MX-series and X-series models you are using can be connected using Robot Cable X4P (Convertible), which I believe one should be included with each XM540-W270-R.

  2. Regarding powering the 7 DYNAMIXELs using the standard SMPS power supply, it is certainly possible to power the servos using the default 12V 5A power supply, however the overall current is limited to the rating of the power supply which may cause browning out or reduced capability at higher loads if using the default 5A AC adapter.
    To size a suitable power supply for your arm, I would recommend checking the stall current for each model you are using through their e-Manual pages and adding them together for a theoretical maximum. This can give you an idea of the total current your arm might draw at stall (although it would be rare/unexpected to stall the entire arm at once).

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