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Unread 15-02-2010, 13:23
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Mike Betts Mike Betts is offline
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Join Date: Dec 2001
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Location: Homosassa, FL
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Re: 6 hours, 4 mentors and 2 students couldnt figure out whats wrong with our relays

Quote:
Originally Posted by kavisiegel View Post
OK, so we got the compressor running. We had a bad cable.

Now we got another issue, the compressor stops and starts every 10-15 pounds that it gains. Is that a normal issue? A fuse blew, and we think that's to blame.

It does this in both compressor examples as well, not just my code.
If you have wired the compressor correctly, it is powered via a spike (powered by a dedicated 20A circuit breaker from the power distribution board) and the spike's fuse has been replaced by a 20A circuit breaker IAW <R60> part F.

It is possible that

1. One of the two circuit breakers as bad.
2. The pressure switch has a bad connection somewhere.
3. The current draw from the compresser is too high (bad compressor or shorted wiring).

I really do not think that could be a software issue but I'll defer that issue to others.

Regards,

Mike
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Mike Betts

Alumnus, Team 3518, Panthrobots, 2011
Alumnus, Team 177, Bobcat Robotics, 1995 - 2010
LRI, Connecticut Regional, 2007-2010
LRI, WPI Regional, 2009 - 2010
RI, South Florida Regional, 2012 - 2013

As easy as 355/113...
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