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Unread 29-10-2015, 13:41
Aren Siekmeier's Avatar
Aren Siekmeier Aren Siekmeier is offline
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FRC #2175 (The Fighting Calculators)
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Re: FRC Blog - 2016 Motor Controllers

Quote:
Originally Posted by Ari423 View Post
I'm confused what the point of designing a motor controller for 60 amp continuous is if the largest breaker we are allowed to use is 40 amps. I understand the higher peak, but the I was under the impression that breakers would snap once you get above 40 amps for more than a few milliseconds. It would make sense if these were already being produced and are just now being approved for FRC, but the blog post makes it sound like they were developed specifically for FRC teams.
Check out the spec sheet for the 40A breakers in the kit. They can sustain 200% of their rating (80A) for over a second before tripping, and often do when the robot is accelerating. Edit: Allen got me

Quote:
Originally Posted by Thad House View Post
Yes they are, however they are nowhere close to the power provided by the banebot motors. The 9015 is 179W vs 253W, and the AM 775 is only 150W vs 273W. So there are similar size motors, but nowhere near similar power. That means if you want more then 250W in a motor you either need to double up motors, or go to a CIM, where there just sometimes isn't space.
Which is the Andymark 775 that's rated at 150W? I only see the 9015 (~179W) and the motors used in PG gearboxes, which are closer to 40W.

Last edited by Aren Siekmeier : 29-10-2015 at 13:43.
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