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-   -   pic: removable electronics (http://www.chiefdelphi.com/forums/showthread.php?t=61532)

JBotAlan 12-01-2008 23:12
Re: pic: removable electronics
 
Quote:
Originally Posted by Andy L (Post 676599)
those victor screws suck sometimes when you're pressed for time
Yes, if you use ring terminals. Use spade terminals, and all you have to do is spin the screw about a quarter turn and pull on the terminal...it comes right out.

Andy L 12-01-2008 23:16
Re: pic: removable electronics
 
Quote:
Originally Posted by JBotAlan (Post 676602)
Yes, if you use ring terminals. Use spade terminals, and all you have to do is spin the screw about a quarter turn and pull on the terminal...it comes right out.
two things:
1. There are ring terminals on the fans that are required to be hooked up
2. sometimes getting something out so easily can be bad like in the heat and hits of a competition if someone didn't screw it on tight enough.

falconmaster 12-01-2008 23:19
Re: pic: removable electronics
 
Ok I saw the other post, I will break the news to the girls....

mluckham 12-01-2008 23:19
Re: pic: removable electronics
 
The Power Distribution Diagram PDF that I posted (from the FIRST website) is quite specific.

As for the quick-disconnects on the Victor outputs, which is mainly what you are trying to achieve, I think that's a great idea (as long as they don't disconnect, when you don't want them to :rolleyes: )

Richard McClellan 13-01-2008 04:08
Re: pic: removable electronics
 
I like the Powerpoles :p We're using the same sort of setup on our electronics this year, with powerpole connectors coming off of all the output wires for easy removable if necessary.

Madison 13-01-2008 11:45
Re: pic: removable electronics
 
Forgive me for knowing next to nothing about the robot's electrical systems, but we did slightly rewire things in light of the feedback we received here. We added another of the red blocks to the DIN rail, so we have two 6 AWG wires heading to components instead of one daisy-chaining them together.

I'll ask Fred if he has a more recent photo to share.

Eugene Fang 15-01-2008 01:13
Re: pic: removable electronics
 
Quote:
Originally Posted by Manual
<R50> The 12V battery, the main 120-amp circuit breaker, the power distribution block, and circuit
breaker distribution panels shall be connected as shown in the 2008 Power Distribution
Diagram. In particular:
...
* All circuit breaker distribution panels must be connected directly to the power
distribution block. No intermediate connections are permitted.
....

The power distribution diagram shows that the 3 breaker panels (one maxi and 2 others) have separate positive wires to the power distribution block. however, the negative terminal from the second breaker panel goes to teh first breaker panel and then into the power distribution block. isn't that a violation of the rule that "All circuit breaker distribution panels must be connected directly to the power
distribution block"?

Fred Sayre 17-01-2008 11:33
Re: pic: removable electronics
 
Yes, we changed the board by adding another red block to the distribution block and another 6awg wire. I am flattered that you guys are using our board as a template :)

I always wanted to clean up the electronics to aid in diagnosing and troubleshooting problems, but what I found is that when you have a clean electronics board, you have much fewer (if any) problems! It solves the problems instead of making them easier to deal with :)

Quote:
Originally Posted by Pikat (Post 678219)
The power distribution diagram shows that the 3 breaker panels (one maxi and 2 others) have separate positive wires to the power distribution block. however, the negative terminal from the second breaker panel goes to teh first breaker panel and then into the power distribution block. isn't that a violation of the rule that "All circuit breaker distribution panels must be connected directly to the power
distribution block"?
Good eye! This would seem like a violation to me, but maybe the intent of the rule is only for positive connections? But that seems like a very mixed-message. Ultimately positive and negative routes go through one wire at the battery, and if done right the intermediate connections can be as good as the yellow bridge connections on the power distribution block. Oh well, I still do understand the purpose of the rule though :/

falconmaster 17-01-2008 17:00
Re: pic: removable electronics
 
Quote:
Originally Posted by Fred Sayre (Post 680042)
Yes, we changed the board by adding another red block to the distribution block and another 6awg wire. I am flattered that you guys are using our board as a template :)

I always wanted to clean up the electronics to aid in diagnosing and troubleshooting problems, but what I found is that when you have a clean electronics board, you have much fewer (if any) problems! It solves the problems instead of making them easier to deal with :)



Good eye! This would seem like a violation to me, but maybe the intent of the rule is only for positive connections? But that seems like a very mixed-message. Ultimately positive and negative routes go through one wire at the battery, and if done right the intermediate connections can be as good as the yellow bridge connections on the power distribution block. Oh well, I still do understand the purpose of the rule though :/
Thanks for posting your picture!
We hope to be able to be of help to you sometime to return the favor. Thanks! My students loved your board.

MiniNerd24 17-01-2008 17:07
Re: pic: removable electronics
 
Quote:
Originally Posted by falconmaster (Post 676530)
OMG
You have your board designed exactly like ours!


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