Technology Forum Has Moved!

The FIRST Tech Challenge Technology forum has moved to a new location! Please take a look at our forum blog for links and instructions on how to access the new forum.

The official blog of the FIRST Tech Challenge - a STEM robotics programs for students grades 7-12.

Note that volunteers (except for FTA/WTA/CSA will still access their role specific forum through this site. The blog also outlines how to access the volunteer forums.
See more
See less

Expansion hub xt30 reliability

  • Filter
  • Time
  • Show
Clear All
new posts

  • Expansion hub xt30 reliability

    I found an interesting paragraph in the robot wiring guide about xt30 connections reliability (Paragraph at end of post).
    Does anyone know if it is the male or female end that wears out? Or both?
    Should the power connections between two daisy chained Expansion hubs be made semi permanent?
    Will we need to replace the xt30 connectors soldered onto the pc board of the Expansion hub annually to ensure reliable power if we don't follow the advice?

    Related topic - Daisy chaining power. So far all documentation I've seen has the power to the second Expansion hub coming from the first one. In the past we've been told to avoid the voltage drops of daisy chaining modules. Why won't this be a concern with the Expansion Hubs? RE14 e. seems to not limit where power splitters can be used. If we use a Servo Power Module a splitter will already be needed so why not power each Hub from the splitter connected to the battery?

    REV: The REV system uses XT30 style connectors for the power wires. Over the course of a season these connectors will fatigue, and the battery connection will become less reliable. In order to address this, it is recommended that teams zip-tie or otherwise attach an XT30/Anderson PowerPole converter cable to their expansion hub. Once this connector is plugged into the hub, it should be left in place, and the battery should always be disconnected using the Anderson PowerPole connection. This will preserve the XT30 connection and keep the connections reliable throughout the season.