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Unread 30-03-2014, 21:57
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
Location: Wheeling, IL
Posts: 10,795
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Re: Spike Relays suddenly stop working

Coach,
There is a small difference in color on the Spike so you need to be sure when you start your troubleshooting process. An orange LED means the Spike is not enabled or connected. A red LED means it is commanded to one state while a green indicates the other state. To be sure, just look at the DSC next to the connectors for the relays. If any LEDs are illuminated on the DSC, they mimic the command sent to the relay outputs. No LEDs on there means the relays are not commanded to switch. Often the cable linking the DSC to the cRio digital module came loose. I had two teams with that issue over the past weekend alone. Another issue is metallic debris working it's way down into the DSC. This can manifest as a variety of issues most often damaging the DSC. Please ask your LRI at Bayou for assitance and he will help you check through the list. Don't wait, early on practice day is a quiet time for him.
Al
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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.