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By a system of elimination I have concluded the following:
Your motors worked at 4000Hz. Your motors burnt up at 400Hz. Problem - too low of an operating frequency. Solution - move back to the higher frequency.
Now I don't know why the frequency should matter but apparently it does.
As for the performance, it seems to me that it would be better as the frequency increases with a smoother throttle response.
PS. What's so special about these motors that they are so expensive and from overseas?
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Teacher/Engineer/Machinist - Team 696 Circuit Breakers, 2011 - Present
Mentor/Engineer/Machinist, Team 968 RAWC, 2007-2010
Technical Mentor, Team 696 Circuit Breakers, 2005-2007
Student Mechanical Leader and Driver, Team 696 Circuit Breakers, 2002-2004
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