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Author Topic: Hot speed controler  (Read 1258 times)

AlanP

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Hot speed controler
« on: November 04, 2008, 09:47:05 PM »

Today I have been trying to sort out the servos and wiring in my boat before the decks are glued down, so I had the tx and rx switched on for about half an hour, although the motors were not run, at the end of this time the speed controller was quite hot, is this normal, if so it must mean that the controller is pulling amps while in the neutral position or am I wrong on that?.
The speed controller is held in position with Velcro on its underside and I was thinking of putting a perspex cover over the controller and receiver to keep out water, maybe not a good idea.
Posted two pics (I hope) any suggestions for altering the setup or anything else would be appreciated as once the decks are glued down that's my lot  {:-{

Mtronics Viper Marine 25 controlling two 555 motors............Reciever Futaba 2.4 Ghz

I know it looks a mess, but I do know what they all the wires are for, I think.

Alan
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Shipmate60

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Re: Hot speed controler
« Reply #1 on: November 04, 2008, 10:12:15 PM »

AlanP,
The speed controller is supplying power to your radio via the BEC.
This will get warm, but not hot.

Bob
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AlanP

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Re: Hot speed controler
« Reply #2 on: November 04, 2008, 10:52:18 PM »

Not warm, quite hot Bob  :((
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FullLeatherJacket

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Re: Hot speed controler
« Reply #3 on: November 04, 2008, 11:14:42 PM »

12v in and 5v out means that regulator is having to dissipate quite a bit of power. Add to that the fact that there is absolutely no provision to take this away via a heat-sink, and your ESC is effectively a ceramic block with its own internal heating element.

(Don't you just LURV BEC??)

FLJ
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AlanP

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Re: Hot speed controler
« Reply #4 on: November 06, 2008, 08:48:47 PM »

Battery pack now fitted for the receiver and the red pin taken out of the ESC
Does not seem to get as hot now  :-))

Thanks for all the help

Alan
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