View Single Post
  #14   Spotlight this post!  
Unread 09-04-2012, 13:34
Mark McLeod's Avatar
Mark McLeod Mark McLeod is offline
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: 8,795
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: spike relay problem?

Quote:
Originally Posted by coreyjon View Post
when the command kOn is sent is it activating both internal relays? so I should be getting 12 volts from both output pins when compared to ground on the power distro panel?
Your code passes muster if the Digital sidecar Relay LEDs are performing as described.

The Spike should reflect what the Sidecar LEDs are doing, although I think the Spike should be yellow for neutral when the Sidecar LEDs are both off.

It sounds as if the code is working through to the Sidecar.
Any of the parts after that could be causing a problem:
  • Sidecar itself (test the Relay pin outputs with a multimeter- relays are a constant 5v on both the red & green signal pins when they are active, 0v when not)
  • PWM cable (test at the far end with a multimeter)
  • Spike (test 12v output on M+ & M- lines to ground)
P.S. It sounds like the red signal line isn't getting through for some reason.
__________________
"Rationality is our distinguishing characteristic - it's what sets us apart from the beasts." - Aristotle

Last edited by Mark McLeod : 09-04-2012 at 13:43.