View Single Post
  #9   Spotlight this post!  
Unread 19-02-2012, 22:39
slijin's Avatar
slijin slijin is offline
Pockets
AKA: Samuel Lijin
FRC #0694 (StuyPulse)
Team Role: Mentor
 
Join Date: Jan 2010
Rookie Year: 2010
Location: New York City
Posts: 537
slijin is a splendid one to beholdslijin is a splendid one to beholdslijin is a splendid one to beholdslijin is a splendid one to beholdslijin is a splendid one to beholdslijin is a splendid one to beholdslijin is a splendid one to behold
Re: Overworked jaguars

Quote:
Originally Posted by NS_Radication View Post
The direction is only one direction and I do not seem to understand how to answer the last two quests/thoughts, possibly due to terminology.

I have seen your single post of the rate-limit and have had programmers block on implementing that system with a single button use.
The problem you describe implies that the gearing on your shooter necessitates some sort of ramping feature; that is, rather than an instantaneous change in supplied power, a gradual change. This is implemented by rate-limiting, which implements a maximum rate of change so that the Jaguar's over current protection will not cut in and stop your shooter.

My suggestion was to use the Jaguar's automatic ramp mode, which can be done by changing the jumper configuration on the limit switches from both vertical to both horizontal; this ramps the power change over a sixteenth of a second (assuming you're going from zero to full forward). Refer to p12 of the document I originally linked for a diagram of what the jumper configuration should look like.
__________________

2010-12 CT Chairman's
2011 Galileo 5th seed
2010 NY Regional Winners