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Unread 22-02-2012, 17:04
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Fe_Will Fe_Will is offline
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AKA: Will
FRC #0955 (CV Robotics)
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Join Date: Jul 2004
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Location: Corvallis, OR
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Re: Potential DSC Damage

Quote:
Originally Posted by EricVanWyk View Post
Fe_Will -

Could you send me further information on how you had mis-wired the pressure sensor? A link to the sensor's datasheet and a quick schematic of the wiring would be great. I'd like to take a look to see if it possible to prevent this sort of damage in the future.
I really don't have either... It was a KoP pressure sensor and the 5V wire was switched with the signal on the sensor side. The initial wiring was done Thursday at the Autodesk Oregon Regional, a hasty fix for sure. At first we thought we had a chassis short. During testing we discovered that the DSC was bad. We replaced it and continued looking for our perceived short. After burning out DSC #2 we started looking at what was going on with that part of the system. A few changes later we mounted #3 and turned it on. Everything was fine until the pneumatic system started charging and then we melted that one.

An alum from another team was able to solder the contacts back onto the best board of the three, we ran with it for two events after rewiring the sensor. The other boards were damaged beyond repair and disposed of. Good thing we had spares and someone who was able to fix the one we had. Unfortunately, our main concern was competing and not further testing the DSC.
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