![]() |
Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Hi CD,
Our team is running into an interesting issue. Our compressor is somehow able to run even when our robot is disabled. We think that something we're doing is uncovering a bug in the FRC framework, but we don't really know. We're in match #1 tommorrow and if we don't fix this issue we have to go out without a compressor. We can score auton but then we will run out of air. Any ideas, CD? |
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
This is usually due to a faulty digital sidecar. Try opening it up and cleaning out any metal shavings, try replacing it if that doesn't fix the problem.
|
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Absolutely sure that it is wired up correctly?
Try to control it programmatically, if you can't make it turn on and off with a button push in tele-op, then the framework can't either. |
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Quote:
|
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Can you throw some more air tanks on for a quick fix?
|
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Quote:
Talk to the CSA at your event and try to get a loaner digital sidecar (assuming you don't have a spare). |
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Quote:
I can't figure out the acronym. |
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Quote:
|
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Thanks all,
We did our own research last night and it turns out that there is a certain line on the digital sidecar that controls the enable/disable to relays 1-4. We're going to see if we can switch to 5 and 6 (we have 2 relays) for the first match and failing that we will swap the sidecar. Luckily, we already had to swap a sidecar yesterday to fix an electronics isolation issue so everything is really well labeled. I'll let you know how it goes. |
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Quote:
http://www.NIParkway.com He is hoping that more teams will use this tool to make requests and the CSA's will use it to document what was done to solve the issue. This will help identify any trends and possible solutions. |
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Quote:
|
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Sorry that OP didn't deliver, was at regional.
Was a faulty DSC. We managed to switch in a new one before our first match friday! |
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
At San Diego we had this set up on a laptop in the Inspection area. This way Inspectors could refer a team to a CSA very easily and faster than we could usually track them down. Just enter your team number and a brief description of the problem and a CSA would show up at your Pit, usually within 20 minutes or so.
Quote:
|
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Team 3940 ran into this problem on our practice robot here in our shop today. We replaced the Digital Side Car to solve this issue. Upon inspection of the faulty DSC, we found a large amount of shavings and metal dust inside the case.
|
Re: Labview disabled compressor runs *AT REGIONAL IN MATCH 1 TOMMOROW*
Quote:
The reason the compressor is running is because the digital IO pressure switch is being shorted to ground. Also this is dependant upon where you start your compressor code from. If you start the compressor call in robot init, it has the potential to run during disabled. If you start the code somewhere else, it won't run in disabled, unless you ran through that portion of the code first. We typically only start our compressor in telopInit (to avoid it running during auto and just being an extra electrical load we don't want. (We run the robot in queue to pre-charge our air system)). Hope this helps, Kevin |
| All times are GMT -5. The time now is 02:46. |
Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi