5 wire servo - India's open forum for RC flying, aeromodelling, cars and hobby stores

« on: November 30, 2014, 08:18:54 PM »

chintan joshi

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5 wire servo

Hello there,
I am using modelart sandstorm. It's servos are used up now and I want to buy a new servo. Can anyone here suggest me which one and from where to buy, which is suitable for my 1:16 RC car. The current servo is 5 wired and Uptill my recent research, I couldn't find 5 wired servo, it has only 3 wires. I can find it at good prices on snapdeal but don't know what to do with the 3 wired while there's 5 wire port in my receiver.
Also if anyone can guide me to but a Rx and Tx set online in India. I saw one for 20$ on nitrorcx but they don't ship it to India😞


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« Reply #1 on: December 01, 2014, 02:39:48 AM »

buzz_rc

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Re: 5 wire servo

Hey, you can easily convert a 3 wire servo to a 5 wire servo if you still have the old servo. All you need to do is find a 3 wire servo of the same size. Hope this helps.


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« Reply #2 on: December 01, 2014, 09:57:50 AM »

sundaram

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Re: 5 wire servo

http://www.rcgroups.com/forums/showthread.php?t=652907

reply #4

Quote from: tim_mellor;7045554

The short answer is NO. The reason for the 5 wires going to the servos is that they are "dumb" servos and have no real electronincs fitted to them. Normal servos have all the decoders and servo drivers in the servo case. In the case of the 5 wire servos the electronics are located in the main electronic block.

Basically 2 of the wires supply power to the motor and the other 3 go to a position detecting potentiometer inside the servo case.

While I would recommend going to conventional gear such as JR Futaba Hitec etc. You can if you really really want to buy 2 additional Parkzone servos and fit them to Phoenix but long term if you are going to stick with the hobby it is money down the drain.

good luck

Tim

However like buzz-rc has pointed out theoretically you can

So basically you need to discard the COB inside the standard three wire servo and connect the remaining three wires directly to the pot inside is it?


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« Reply #3 on: December 01, 2014, 10:14:12 AM »

buzz_rc

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Re: 5 wire servo

Yes sir. Basically, a 5 wire servo consists of only mechanical parts. The electronics are built into the receiver. To convert the servo, all you need to do is take the circuit board out of a std 3 wire servo of the same size and you will be left with 5 wires. 2 that connect to the motor and 3 that connect to the pot. The wires will need to be mapped back to the original connector. If OP can provide detailed pictures, I can probably help with the conversion. Hope this helps.

-Angad


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« Reply #4 on: December 01, 2014, 12:07:28 PM »

chintan joshi

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Re:

Thanks for the suggestions, but I'll post the pics so that I can get some practical help, my question is should I buy the 3 wired servo and take a risk?


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« Reply #5 on: December 01, 2014, 12:10:23 PM »

buzz_rc

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Re: 5 wire servo

Well, to begin with, are you sure that the servo has gone bad? I mean, since all that a 5 wire servo consists of is a motor and pot, I would suspect that there could be a problem with the rx. Check the resistance on the pot and also check the motor first.

-Angad


« Last Edit: December 01, 2014, 12:23:58 PM by buzz_rc »	Logged

« Reply #6 on: December 01, 2014, 12:21:07 PM »

chintan joshi

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Re:

Nope its bad, it makes noise and can turn only when its in air ,on ground, it would just make the noise


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