Go to Post What? Thinking is required? I certainly hope not! If so, I'm toast! - Robert Cawthon [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 24-03-2015, 22:56
orangemoore orangemoore is online now
Registered User
AKA: Roger Moore
FRC #3135 (Robotic Colonels)
Team Role: College Student
 
Join Date: Dec 2012
Rookie Year: 2013
Location: Chicago
Posts: 2,310
orangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond repute
Jaguar(s) Acting Odd

We have been practicing with our robot and towards the end of the day today one of the Jaguars we were using became unresponsive. The Jaguar controls our elevator motor with a joystick and when we moved it in any direction (positive or negative) the jaguar light would go from solid yellow to solid red.

We didn't change any code and it just stopped working. Because of this we first went and replace the PWM wire hoping it might be an easy fix but it ended up not working. The next step we took was to switch out the Jaguar that wasn't working. When we did this the problem we had transferred over to the jaguar we replaced the "bad" one with.

I am now thinking it might have to do with the PWM still but does anyone have any idea what the problem could be?
__________________
Stronghold


Student 2013-2016
3135 -- Robotic Colonels
3507 -- Robotheosis (FTC)
  #2   Spotlight this post!  
Unread 24-03-2015, 23:20
kevin.li.rit's Avatar
kevin.li.rit kevin.li.rit is offline
Imaginary Friend
AKA: Kevin Li
FRC #0596 (SciClones)
Team Role: Student
 
Join Date: Jan 2003
Rookie Year: 2001
Location: Hopkinton, Massachusetts
Posts: 936
kevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond repute
Send a message via Yahoo to kevin.li.rit
Re: Jaguar(s) Acting Odd

Is it possible that you are having current issues with the Jaguar? Did you check the output of the jaguar with a voltmeter?

Does the jaguar function correctly with no motor or no load?
__________________
Kevin Li

596 - Sciclones
1405 - Finney Falcons
2262 - Holliston Panthers
  #3   Spotlight this post!  
Unread 24-03-2015, 23:32
kevin.li.rit's Avatar
kevin.li.rit kevin.li.rit is offline
Imaginary Friend
AKA: Kevin Li
FRC #0596 (SciClones)
Team Role: Student
 
Join Date: Jan 2003
Rookie Year: 2001
Location: Hopkinton, Massachusetts
Posts: 936
kevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond reputekevin.li.rit has a reputation beyond repute
Send a message via Yahoo to kevin.li.rit
Re: Jaguar(s) Acting Odd

Follow up question, What motor are you using for your lift?
__________________
Kevin Li

596 - Sciclones
1405 - Finney Falcons
2262 - Holliston Panthers
  #4   Spotlight this post!  
Unread 24-03-2015, 23:38
orangemoore orangemoore is online now
Registered User
AKA: Roger Moore
FRC #3135 (Robotic Colonels)
Team Role: College Student
 
Join Date: Dec 2012
Rookie Year: 2013
Location: Chicago
Posts: 2,310
orangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond repute
Re: Jaguar(s) Acting Odd

Quote:
Originally Posted by kevin.li.rit View Post
Is it possible that you are having current issues with the Jaguar? Did you check the output of the jaguar with a voltmeter?

Does the jaguar function correctly with no motor or no load?
We didn't do either but we will tomorrow.

We are using a CIM
__________________
Stronghold


Student 2013-2016
3135 -- Robotic Colonels
3507 -- Robotheosis (FTC)
  #5   Spotlight this post!  
Unread 25-03-2015, 22:34
Mark McLeod's Avatar
Mark McLeod Mark McLeod is online now
Just Itinerant
AKA: Hey dad...Father...MARK
FRC #0358 (Robotic Eagles)
Team Role: Engineer
 
Join Date: Mar 2003
Rookie Year: 2002
Location: Hauppauge, Long Island, NY
Posts: 8,905
Mark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond reputeMark McLeod has a reputation beyond repute
Re: Jaguar(s) Acting Odd

Could the elevator be jammed or sticky enough to stall the CIM for a few seconds before it begins to move?

What version of firmware do you have on the Jaguar (v109)?

A Jaguar will protect itself from overcurrent if the CIM draws too much, e.g., is stalled too long. The Jag signals this with a red status light.
Older firmware Jags give up a lot sooner when they encounter stall conditions.
__________________
"Rationality is our distinguishing characteristic - it's what sets us apart from the beasts." - Aristotle
  #6   Spotlight this post!  
Unread 25-03-2015, 22:40
orangemoore orangemoore is online now
Registered User
AKA: Roger Moore
FRC #3135 (Robotic Colonels)
Team Role: College Student
 
Join Date: Dec 2012
Rookie Year: 2013
Location: Chicago
Posts: 2,310
orangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond reputeorangemoore has a reputation beyond repute
Re: Jaguar(s) Acting Odd

Quote:
Could the elevator be jammed or sticky enough to stall the CIM for a few seconds before it begins to move?

What version of firmware do you have on the Jaguar (v109)?

A Jaguar will protect itself from overcurrent if the CIM draws too much, e.g., is stalled too long. The Jag signals this with a red status light.
Older firmware Jags give up a lot sooner when they encounter stall conditions.
The Elevator doesn't jam enough it moves quite freely.

I need to check what firmware we are using.


Well we figured out after a little testing that the RED Light was slowly flashing and not solid. Apparently the Limit Switch jumpers were missing from the replacement jaguar. We replaced the limit switches and the problem was resolved.

Because this worked we didn't confirm or figure out what the initial problem really was on the first jaguar.


Thanks to all the help!
__________________
Stronghold


Student 2013-2016
3135 -- Robotic Colonels
3507 -- Robotheosis (FTC)
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 20:21.

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