RCMF

Level 1 => Electric Flight Technical => Topic started by: greyfly on February 04, 2020, 10:06:31 am

Title: Help needed
Post by: greyfly on February 04, 2020, 10:06:31 am
Gents I have a motor and speed controller that are at fault.
I'm not sure we're the problem is it could be the motor or the esc. If I purchased a multi meter could I use that to assitain which one is at fault. If so how? as I'm no electrician. Any help would be great fully appreciated.
Title: Re: Help needed
Post by: PDR on February 04, 2020, 10:17:24 am
A meter will be of no use to you unless you know what you want to measure. What would you want to measure?

What are the symptoms - does the ESC beep on start up? Does the motor kick at all? Does the magic white smoke refuse to go back inside?

PDR
Title: Re: Help needed
Post by: paulinfrance on February 04, 2020, 12:16:05 pm
The first thing is does the motor 'sing', and with some radios ( Futaba ) you have to change the servo sense on the stick ' servo reverse' and others like Hitec go from 100% throws to the maximum 120% ?.
Title: Re: Help needed
Post by: FlyinBrian on February 04, 2020, 12:46:09 pm
Did you buy them from a shop? if so take them back and ask for help. It would be helpful to know Motor and ESC types
Title: Re: Help needed
Post by: greyfly on February 04, 2020, 15:16:49 pm
Gents further to your kind replies here's the tec points/info you requested. The model is a T/N mosquito. The motor is a 5055-580 from 4 max. The esc is a pptesc 60 au, again from 4max and is the recommended set up for this model. The problem I have is that after a heavy landing the motor and esc on one side stopped working. Hence I suspect that one or the other has failed and my enquiry about a multi meter to see which has stopped working. I look forward to your further response.
Title: Re: Help needed
Post by: clive_f on February 04, 2020, 16:38:06 pm
take the suspect motor out and connect it to the esc on the other side. and vice versa simples

Clive
Title: Re: Help needed
Post by: Chippie on February 04, 2020, 16:42:49 pm
It's an idea, but we dont know if the crash has caused any magic smoke release...

I suppose the best idea would be to swap the speed controller over to the good side first...if the motor runs, then obviously a motor related issue...this way avoids the possibility of damaging the good speedo with a duff motor...
Title: Re: Help needed
Post by: paulinfrance on February 04, 2020, 16:47:23 pm
I could also be a bad solder connection, so does the motor sing when you plug the battery in ?
 Does it 'shudder' when you accelerate ? ( one phase not working,),