Thread: Victor Burnouts
View Single Post
  #1   Spotlight this post!  
Unread 05-05-2005, 20:02
Sparks333's Avatar
Sparks333 Sparks333 is offline
Robotics Engineer
AKA: Dane B.
FRC #1425 (Wilsonville Robotics)
Team Role: Alumni
 
Join Date: Feb 2004
Rookie Year: 2003
Location: Wilsonville, Oregon
Posts: 184
Sparks333 is a glorious beacon of lightSparks333 is a glorious beacon of lightSparks333 is a glorious beacon of lightSparks333 is a glorious beacon of lightSparks333 is a glorious beacon of lightSparks333 is a glorious beacon of light
Send a message via AIM to Sparks333
Re: Victor Burnouts

Hey all!
Been awhile...
Just my thoughts: I have seen a couple vics blown out in several ways. The most common I have seen (and yes, I am ABSOLUTELY SURE this is what I saw) is people pushing their robots when they are off. This creates juice from the motors, which goes where? the victor. (I really don't recomend this, but if you backdrive the motors and look at the victors, sometimes the lights will turn on. Again, because of the previous point, I don't recomend this.) Push it hard enough, they can zap themselves. This is what I think happened with the hand-cranking the winch, and also it makes sense that only one set of FETs would blow out if you're only wheeling it one way, so the other direction should still work. Also, check the main capacitor in the middle. Another man I once met inspecting the Vics noticed some sticky stuff on one of his, and said it's electrolyte. I don't know how much truth there was to this, but if your capacitor's top is bulging, then it's gonna blow. Replace it before bad things happen.

Hope I am 1)helping, not hindering, and 2)not going over old territory.

Sparks

Oh, and Bob? That white stuff, I'd bet, is electrolyte. I could be wrong (you're not supposed to see it, so I don't know what color it is) but that seems to be the best guess I have.
__________________
ICs do weird things when voltage is run out of spec.

I love to take things apart. The fact that they work better when I put them back together it just a bonus.

http://www.ravenblack.net/random/surreal.html

Last edited by Sparks333 : 05-05-2005 at 20:09.