Go to Post No one would climb Mount Everest before climbing the hill in the park down the street. - RbtGal1351 [more]
Home
Go Back   Chief Delphi > Technical > Electrical
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Closed Thread
 
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 06-02-2013, 00:33
KrazyCarl92's Avatar
KrazyCarl92 KrazyCarl92 is offline
Registered User
AKA: Carl Springli
FRC #5811 (The BONDS)(EWCP)
Team Role: Mentor
 
Join Date: Jan 2010
Rookie Year: 2010
Location: Dayton, OH
Posts: 519
KrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond repute
Re: Issue with Talons

Here's what we have already tried and some additional info:
We tried turning the robot off and back on. Sometimes this fixed it, other times it didn't, and the problem would intermittently come back after varying amounts of time.
All 3 lights on the digital side car are on.
The observed effect is that the robot is commanded to move forward (and only forward) and it starts out doing so, then pulses a turn to the left, then continues on its way forward.
This happens only when the talon is commanded to go in the green direction. It does not occur in the red direction (or we have yet to observe it).
All 4 of the talons are in coast mode.
__________________
[2016-present] FRC 5811 - BONDS Robotics
[2010-2015] FRC 0020 - The Rocketeers

Last edited by KrazyCarl92 : 06-02-2013 at 02:04.
  #2   Spotlight this post!  
Unread 06-02-2013, 07:53
Alan Anderson's Avatar
Alan Anderson Alan Anderson is offline
Software Architect
FRC #0045 (TechnoKats)
Team Role: Mentor
 
Join Date: Feb 2004
Rookie Year: 2004
Location: Kokomo, Indiana
Posts: 9,112
Alan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond reputeAlan Anderson has a reputation beyond repute
Re: Issue with Talons

A brief twitch in reverse can be a sign that the robot is getting disabled for a moment. If the PWM signal is interrupted for just the right amount of time, it is possible for the speed controller to misinterpret the interruption as a valid command. Look at the Diagnostics tab of the Driver Station and see if there are any helpful error messages.
  #3   Spotlight this post!  
Unread 06-02-2013, 07:56
RufflesRidge RufflesRidge is offline
Registered User
no team
 
Join Date: Jan 2012
Location: USA
Posts: 989
RufflesRidge has a brilliant futureRufflesRidge has a brilliant futureRufflesRidge has a brilliant futureRufflesRidge has a brilliant futureRufflesRidge has a brilliant futureRufflesRidge has a brilliant futureRufflesRidge has a brilliant futureRufflesRidge has a brilliant futureRufflesRidge has a brilliant futureRufflesRidge has a brilliant futureRufflesRidge has a brilliant future
Re: Issue with Talons

Have you tried calibrating the Talons?
  #4   Spotlight this post!  
Unread 06-02-2013, 10:52
KrazyCarl92's Avatar
KrazyCarl92 KrazyCarl92 is offline
Registered User
AKA: Carl Springli
FRC #5811 (The BONDS)(EWCP)
Team Role: Mentor
 
Join Date: Jan 2010
Rookie Year: 2010
Location: Dayton, OH
Posts: 519
KrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond reputeKrazyCarl92 has a reputation beyond repute
Re: Issue with Talons

Quote:
Originally Posted by RufflesRidge View Post
Have you tried calibrating the Talons?
Yeah, we have calibrated them.
__________________
[2016-present] FRC 5811 - BONDS Robotics
[2010-2015] FRC 0020 - The Rocketeers
Closed Thread


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 03:39.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi