Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Radio Equipment => Topic started by: whiskeyfrank on June 20, 2008, 11:36:14 pm

Title: Receiver and esc wiring
Post by: whiskeyfrank on June 20, 2008, 11:36:14 pm

Hi, Im new to electric RC modelling so please forgive my stupidity. ive got a new esc and reciever, the speed controller has a bec. But which socket do i plug the ESC into the receiver ch1 i presume is for steering, but do conect the esc to the "batt" or "ch2" socket?

Sorry but ive never used an esc before, always used nitro engines before.

Thanks

Title: Re: Receiver and esc wiring
Post by: Stavros on June 20, 2008, 11:40:07 pm

Ch2 socket and there is no need to be sorry at all,you want to know then simply just ask



Stavros

Title: Re: Receiver and esc wiring
Post by: malcolmfrary on June 21, 2008, 11:41:07 am

For a bit more info, have a look at
http://www.modelboatmayhem.co.uk/forum/index.php?topic=11287.0;prev_next=prev#new

Title: Re: Receiver and esc wiring
Post by: FullLeatherJacket on June 21, 2008, 01:26:34 pm

Or this, maybe?

http://www.action-electronics.co.uk/pdfs/BEC.pdf

FLJ

Title: Re: Receiver and esc wiring
Post by: whiskeyfrank on June 23, 2008, 10:20:43 am

Cool thats fantastic..

also im concerned that there is no way of turning off the power to the esc without disconnecting the batteries, would it be prudent to put a switch between the battery and the esc.

And .... what size of fuse should i be using, im running 2 x 3300 6v batteries?

Thanks everyone

Title: Re: Receiver and esc wiring
Post by: malcolmfrary on June 23, 2008, 01:37:23 pm

Most modern ESCs have a small slde switch.  This disconnects the control circuitry.  With the control circuitry disabled, the output transistors are switched fully off, and leakage is so low as to be equal to switching off.
As has been discussed in other threads, a fuse is a good idea - pulling the fuse is equivalent to throwing a switch.  If you have the room and feel the need, an appropriately rated switch is unlikely to do any harm.

Title: Re: Receiver and esc wiring
Post by: whiskeyfrank on June 23, 2008, 05:13:39 pm

thanks, i feel it needs a switch as the esc does not have one.

Do you think a 25amp fuse is OK, my esc is 50amp contin current

Title: Re: Receiver and esc wiring
Post by: malcolmfrary on June 23, 2008, 10:43:33 pm

Assuminug that the ESC can handle more current than the motor can try to take under worst (normally stall) conditions, a fuse value between that current and what the ESC can handle will be OK.  The object is to have the ESC, or, rather, the rest of the boat, protected against internal problems but not to have the fuse go in any normal operations.