Receiver Connection

This topic is empty.

Viewing 11 posts - 1 through 11 (of 11 total)

Author

Posts
8 July 2015 at 17:25 #58991
David Marks 2
Participant
@davidmarks2
I am installing my Planet T7 2.4 GHZ unit for the first time. The output lead from the MTroniks Viper Marine 15 Speed Control to the Planet R7M Receiver has three coloured wires i.e. red/brown/yellow. Please could someone confirm which is the -ve wire. The connections on the receiver are clearly marked +ve -ve and signal but unfortunately there is no physical restraint to prevent the female connector on the cable being connected in the wrong orientation. I do not wish to encounter the dreaded white smoke that Mr Milbourn refers to in his responses on this site. Thanks
Advert

8 July 2015 at 17:25 #5376
David Marks 2
Participant
@davidmarks2
8 July 2015 at 18:30 #58992
ashley needham
Participant
@ashleyneedham69188
David. Brown is negative. No harm will come to the rx or anything else by connecting the wrong way round as far as I know, done it often enough. It just wont work

Ashley
8 July 2015 at 18:30 #58993
Dave Milbourn
Participant
@davemilbourn48782
Sequence would better be described as Brown/Red/Orange, but the Brown lead is the negative connection and goes to the pin on the opposite side from the printing on the receiver casing and the LED. If you have the R7M with a hard case then the Brown wire goes to the outside.
Glad you asked – many don't and then blame the gear……………

Dave M
8 July 2015 at 20:33 #58994
Dodgy Geezer 1
Participant
@dodgygeezer1
In my experience (typically Chinese servos!) the way things work are

Red – positive – in the middle

Black (or some dark colour like brown) – negative – to one side

A light colour (white, yellow, orange, tan, etc) – signal – to the other side.

The latest Radiolink receivers don't even have markings on the receiver to help. If there is a 'top' and a 'bottom' to the receiver then the negative tends to go to the bottom, but this is hardly a reliable rule…

Luckily, with the positive in the middle, if you connect the wrong way round no damage should occur – it just won't work. But that also is not a statement you can rely on…
8 July 2015 at 21:07 #58995
David Marks 2
Participant
@davidmarks2
Gentlemen

Many thanks for your help. Hopefully tomorrow I can get the "new creation" up and running, ready for the pond (Club Meeting) on Sunday morning.

Regards – David Marks
8 July 2015 at 22:12 #58996
Malcolm Frary
Participant
@malcolmfrary95515
With the ground line and the signal line being at opposite ends of the plug, the positive, being in the middle, always ends up in the right place. Since there is no DC path through the signal lead, if it gets connected to the wrong pin, nothing happens, much the same with the ground lead and signal pin.

The other interesting trick that can be done on some radios is to push the plug between the pin rows. Nothing happens then, either. Don't ask.
10 July 2015 at 10:48 #59015
ashley needham
Participant
@ashleyneedham69188
Plugging your servo lead into the battery connection on the Rx is another favourite of mine…

Ashley
10 July 2015 at 13:17 #59019
Colin Bishop
Moderator
@colinbishop34627
But you can plug your battery lead into a servo connection!

Colin
10 July 2015 at 13:40 #59020
ashley needham
Participant
@ashleyneedham69188
Ah, the stupidity of old age !!!

Ashley
12 July 2015 at 21:05 #59078
David Marks 2
Participant
@davidmarks2
Just an update on my original thread. I went to our club meeting today with my new creation (UTE variant) running but causing me concerns as the steering was fine but the prop/prop shaft having a mind of its own. I decided on a floatation test which was fine with a just a minimal list. The model was however considered unsafe for a wet run. The club RC `expert' had a look and I was advised to swap the ESC. This was undertaken this afternoon on a like for like basis and bingo…problem solved. I have used the same Mtronics units in all but one of my boats and found them to be easy to set up and problem free…as claimed by the manufacturer but his one is still under guarantee and will be returned.
Author

Posts