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Unread 24-03-2010, 16:08
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
Team Role: Engineer
 
Join Date: Jun 2001
Rookie Year: 1996
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Re: IR Beam Breaking Circuit

Although I have tried to get the powers that be to accept the use of 5 amp breakers in the PD, the rules allow you to still use the wiring as attached to the pre-wired sensor. Please read the rules carefully next year in case I succeed.

R46
F. Custom circuits and sensors powered via the cRIO-FRC or the Digital Sidecar are protected by the breaker on the circuit(s) supplying those devices. Power feeds to all other custom circuits must be protected with a dedicated 20-amp circuit breaker on the Power Distribution Board.

As an alternative you could also wire the sensor to a enclosed perf board that contains a wired fuse and allows power wiring to continue to the PD via #18 wire.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.