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onyx 14 turn motor with Novak T-4 Drawing to much power?
Posted: Wed Apr 25, 2012 12:07 pm
by durb69
i am having an issue with this setup. It is causing some radio interference and i am thinking it is mostly because if the high amperage draw of this motor? if i ease into the throttle and gently go up to full speed it works pretty flawless. If i get into the the throttle very quickly it cuts out the controls all together. Can someone help me out with this. I was using a vintage airtronics controller and that really went nuts. I upgraded to a modern 2.4 GHZ controller and it is now doing this. I am guessing if i ad a capacitor to the ESC that i can fix this problem (based on my research any way). But can someone explain to me what size cap to use and if this will solve my problem? The T-4 manual states that it has not motor turn limit so it should not be related to the ESC other than the AMP draw from the motor.
Thanks for your help!

Re: onyx 14 turn motor with Novak T-4 Drawing to much power?
Posted: Wed Apr 25, 2012 12:14 pm
by slapshot1979
My first thought would be battery. if you ease into it and theres no problem, but gas it and it cuts out I would say your battery cant supply the amps the rest of the system wants.
Re: onyx 14 turn motor with Novak T-4 Drawing to much power?
Posted: Wed Apr 25, 2012 12:14 pm
by lpddpd
Could it also be the CF chassis causing the interference?
Re: onyx 14 turn motor with Novak T-4 Drawing to much power?
Posted: Wed Apr 25, 2012 12:15 pm
by durb69
this cheap battery has some whimpy wires i noticed. could be some of the issue.
Re: onyx 14 turn motor with Novak T-4 Drawing to much power?
Posted: Wed Apr 25, 2012 12:18 pm
by slapshot1979
Spectrum sells a capacitor they call it a stutter stopper $5. If you feel this will help. I run them on everything.
Re: onyx 14 turn motor with Novak T-4 Drawing to much power?
Posted: Wed Apr 25, 2012 12:23 pm
by durb69
Re: onyx 14 turn motor with Novak T-4 Drawing to much power?
Posted: Wed Apr 25, 2012 1:24 pm
by jwscab
yes a stutter stopper/surge cap can definitely help. What happens is the voltage drops momentarily as you effectively 'short' the battery. If the cells can't supply enough current, or the wires have too much resistance, the voltage drops so far that the regulator no longer regulates and the receiver effectively loses power and you lose radio control. Having the capacitor on the receiver acts as a backup 'battery' to supply current for that split second.
You want to install the cap in the 'batt' connection of the reciever, so it supplies power to the receiver.
Re: onyx 14 turn motor with Novak T-4 Drawing to much power?
Posted: Wed Apr 25, 2012 3:11 pm
by durb69
i just made a stutter stopper/glitch buster with a 1000uF 35V capacitor and an old servo lead. I hope the Capacitor is large enough though.
Re: onyx 14 turn motor with Novak T-4 Drawing to much power?
Posted: Wed Apr 25, 2012 4:10 pm
by Goatless