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Unread 25-02-2009, 09:22
Shinigami2057 Shinigami2057 is offline
Slackware Is Your New God (Mentor)
AKA: Harry Bock
FRC #1350 (Rambots)
Team Role: Programmer
 
Join Date: Oct 2006
Rookie Year: 2006
Location: Johnston, RI
Posts: 106
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Re: Using a bench power supply for cRIO

Quote:
Originally Posted by Al Skierkiewicz View Post
Harry,
Using a bench supply for just the Crio should be OK. When you couple a bench supply to the PD and then try to feed some motors, there will be problems with drooping PD supply and thus the Crio reboots. Although you may find a high current power supply that is good to 35 amps peak like my Ham station power supply, it cannot handle the short circuit current of most motors in the KOP. The bench supply will go into current foldback or complete shutdown when trying to start one of these motors.
Yes, I was just planning on attaching the cRIO, not the PD board (or any other load for that matter) - I know that's a very bad idea. I've had success in previous years with attaching the previous control system to a bench supply, but I wanted to double-check to make sure there wasn't any danger of damaging the cRIO.

Any team who left the PD unit behind is braver than we are; there's no way we're going to reconnect all of our wiring after uncrating

Thanks for your quick responses!
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