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Unread 26-03-2014, 16:11
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Team 2853 presents...their Book of Electrical

We started off this year pretty clueless to all of the little nitty gritty details about electrical compenents. Heck, we spent a week trying to figure out why our limit switch wasn't working, to find out that we reimaged our cRIO wrong. Our electrical subteam has had a pretty terrible streak of documenting over the years, so we decided to consolidate our experiences into a giant electrical guide for everyone!

It's pretty long (spans ~130 pages) and we still have some sections and links to add, mostly concerning sensors. We hope this serves to be helpful =D

https://docs.google.com/document/d/1...FQO4vjQI/edit#

Let us know if there are any egregious errors or improvements/other bases to cover.

(Also, I'm not sure if this thread belongs in here or chit chat...sorry if this is in the wrong forum!)
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Unread 26-03-2014, 16:19
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Re: Team 2853 presents...their Book of Electrical

Very nice! A whole lot of information in there!

If you don't mind, I may try to borrow some pieces for our Lazy Mentor chart, particularly for the programming.
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Unread 26-03-2014, 16:20
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Re: Team 2853 presents...their Book of Electrical

That is an awesome guide, I don't think I've ever seen one so complete. I will definitely be showing this to my team, thanks
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Unread 26-03-2014, 16:24
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Re: Team 2853 presents...their Book of Electrical

I'm graduating, so I'll use this for some training before I leave.
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Unread 26-03-2014, 20:49
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Re: Team 2853 presents...their Book of Electrical

WOW! You really put some effort in creating a valuable product. I'll probably use it for training the electronics and programming sub-teams next fall with the caveat that some of the control system components will change.
Nice work. Give yourself a pat on the back.
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Unread 26-03-2014, 21:07
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Re: Team 2853 presents...their Book of Electrical

Thanks everyone!

Everything on this manual is free for everyone to use. Let us know if you would like the PDF/other formats. We're currently working on a printable version.
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Unread 26-03-2014, 22:06
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Re: Team 2853 presents...their Book of Electrical

Fantastic and comprehensive guide. I sincerely hope that your team considers updating it for the 2015 control system.
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Unread 27-03-2014, 03:55
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Re: Team 2853 presents...their Book of Electrical

Wow!! Fantastic job. Thanks for sharing, this will be a great teaching tool for next years team!! See you guys tomorrow, and, best of luck to you!!
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Unread 27-03-2014, 16:30
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Re: Team 2853 presents...their Book of Electrical

Quote:
Originally Posted by cadandcookies View Post
Fantastic and comprehensive guide. I sincerely hope that your team considers updating it for the 2015 control system.
My thoughts exactly. Too bad that a lot of this material will be obsolete in 2015, but what a start for the rookies this September. How can we make sure they all know enough to look for it? We have a CT FIRST University day coming up so I'll be sure to mention this compendium. Thanks.
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Unread 27-03-2014, 17:39
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Re: Team 2853 presents...their Book of Electrical

I want to congratulate you on taking the initiative of creating such a guide - this is something I am currently working with team leadership on my team to create (similar, but more specifically electronics-oriented).

However, I just gave the whole thing a quick-browse and I've found a couple areas that need work (mostly electrical). Here are a few I found quickly:
  1. Wago Connector (Under Power Connector) - The Wago is not used to jump power from the PDB to the cRIO power connector. The cRIO power connector on the PDB has a 4-pole connector on the PDB and plugs to the 4-pole or 2-pole power connector on the cRIO. The 4-pole power connector on the PDB allows you to use the 24V connector on the PDB for both the cRIO as well as 24V pneumatics. What I'm sure you MEANT to say was that the Wago connector is used to provide power from the 12V branches on the PDB to the Digital Sidecar power connector.
  2. Motor Controllers - the Jaguar, Talon, and Victor breaker definitions are incorrect. The Jaguar, Talon, and Victors can all use 20A breakers if you wanted - you must provide the correct breaker to protect the wires used AND provide enough power for the current draw of the device being used (whichever is less). For instance, if you use 16AWG wires, you need to use 20A breakers - but you can use a Talon to power a CIM with ease; however, that won't provide enough current to the current-hungry CIM motor. So you would require at least 12AWG wire to route power to the Talon, so that then you can use a 40A breaker for the CIM.
  3. Victor - The victor does NOT provide square-root power to a device. If you have a 12V input, you can provide a 12V output. Not really sure where you got that gem from.
  4. Victors, Talons, and Jaguars are all interchangeable. Except for the fact that in my Humble but Accurate Opinion Jaguars should never be used for drivetrains. The reason lies behind the "software-controlled progressive current limitations" built into the firmware. But, functionally and power-wise, they are interchangeable.
  5. Spike - it should be noted that a spike can also use a 20A snap-action breaker and is not limited to a 20A fuse.
  6. When wiring your Camera, be careful - the metal post sticking out of the camera is likely connected to the common (ground) wire of the power input. Make sure the camera mount is insulated from the robot frame.
  7. In the same regard, be careful with the cRIO. The cRIO's case is also connected to the common (ground) wire of the power input. Make sure the cRIO is insulated from your frame (usually I just mount the cRIO with velcro).

Otherwise, great job with the documentation.

-Danny
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Last edited by Danny Diaz : 27-03-2014 at 17:44.
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Unread 27-03-2014, 17:47
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Re: Team 2853 presents...their Book of Electrical

Quote:
Originally Posted by Danny Diaz View Post
Spike - it should be noted that a spike can also use a 20A snap-action breaker and is not limited to a 20A fuse.
Also note that this is only legal when powering a compressor.

Quote:
When wiring your Camera, be careful - the metal post sticking out of the camera is likely connected to the common (ground) wire of the power input. Make sure the camera mount is insulated from the robot frame.
This is only true on the old Axis 206 camera. The M1011 and M1013 do not have this problem.
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Unread 27-03-2014, 18:47
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Re: Team 2853 presents...their Book of Electrical

Here's a few things I noticed:

Analog Breakout: The red analog breakout has the switching regulator. Both blue versions have 0.25 amp linear regulators. The 2014 analog breakout does not have the battery voltage jumper. AI 8 is automatically jumpered.

Servo: Should mention 6v jumper on digital sidecar
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Unread 28-03-2014, 05:21
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Re: Team 2853 presents...their Book of Electrical

We're currently in the middle of our Hawaii regional, but we'll definitely be updating this after we're over the insanity of competition

Thanks for all of your input!
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Unread 30-03-2014, 16:36
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Re: Team 2853 presents...their Book of Electrical

This is a really great guide to all of the electrical parts, I now plan to use this is as a guide for the Powerpoint to show rookies at the beginning of the school year in the future!
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Unread 30-03-2014, 18:14
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Talking Re: Team 2853 presents...their Book of Electrical

This is AWESOME!!!!!!
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