Solved RESOLVED - New motor and esc always stuttering

[Merv]

...it’s totally ok to hook up a single cell from your battery this way...

It's OK just as long as you don't flip the plug. Watch out for reverse polarity, that will the smoke out.

My self, I use an old 5V transformer, aka a wall wart, for bench testing. Just cut off the end and solder on an old servo lead. If I accidently flip the plug, nothing happens.

 

[Coderteam1]

ok guys thanks for clarifying.....i think i need a new motor ( think ) as when i tested with transmitter reciever yesterday the same thing happened the motor was moving erretically and and very slow speeds when throttle was at the max......

any recommendations for a good motor under 600rs INR ( indian currency )?

 

[Coderteam1]

hey @Merv
do have have good motor reccomendations?

 

[Coderteam1]

It's OK just as long as you don't flip the plug. Watch out for reverse polarity, that will the smoke out.

My self, I use an old 5V transformer, aka a wall wart, for bench testing. Just cut off the end and solder on an old servo lead. If I accidently flip the plug, nothing happens.

yeah i learned bout reversing polarity the hard way....was building a multiwii arduino flight controller when out of curiousity, i applied reverse voltage on the place where servo connection should be from my big gigantic LIPO battery....maybe smoked the modules but smoke was definitely coming from one(instantly disconnected it)

 

[Coderteam1]

Ok yeah, don’t hook it up that way. You need to plug the XT60 connector from the battery to the ESC. That provides power to the ESC. The yellow/red/black wire from the ESC to the servo tester provides the 5v to the servo tester (on the red wire). The signal from the servo tester then goes back to the ESC on the yellow wire. The black wire is the common ground.

I know this is confusing because it looks like you need something attached to the input side of the servo tester, but you don’t. The positive wire is connected all the way through, so if it’s receiving power from the ESC, it doesn’t need anything on the input side. PS, I own the exact same servo tester.

@Foamforce i tried it without the balance connecter on the servo and the servo was getting power but the esc did not acknowledge the signal

 

[Foamforce]

@Foamforce i tried it without the balance connecter on the servo and the servo was getting power but the esc did not acknowledge the signal

You mean servo tester? You may have been connected on the wrong side. The ESC has to be on the output side, since it’s receiving the PWM signal from the servo tester. Also, make sure you didn’t have the ESC connection on the servo tester backwards, although in that case the servo tester shouldn’t have been getting any power.

Just so your next motor doesn’t burn out, I want to reiterate that you should not connect both the balance connector and the ESC to the servo tester at the same time. When you do that, you’re directly connecting the 5v BEC output from the ESC to the 3.7v from your battery cell.

 

[Foamforce]

hey @Merv
do have have good motor reccomendations?

What plane is this for? The motor you had didn’t match any of the common FliteTest power packs. It’s similar to the power pack B, which is good for a lot of trainer planes, but it’s 2200kv instead of 1000kv. That would make it more suitable for a faster plane, rather than a trainer. All the FliteTest planes have an associated power pack, so find out which power pack that plane has and get a similar motor (which we can help with).

 

[Coderteam1]

hey im making a custom build
so i need any good 2200 kv motor which u trust and like 6 dollars

 

[Coderteam1]

You mean servo tester? You may have been connected on the wrong side. The ESC has to be on the output side, since it’s receiving the PWM signal from the servo tester. Also, make sure you didn’t have the ESC connection on the servo tester backwards, although in that case the servo tester shouldn’t have been getting any power.

Just so your next motor doesn’t burn out, I want to reiterate that you should not connect both the balance connector and the ESC to the servo tester at the same time. When you do that, you’re directly connecting the 5v BEC output from the ESC to the 3.7v from your battery cell.

i put it on the outputside of the servo tester and it still did not acknowledge the signal

 

[Coderteam1]

ok i wont make that mistake again
the motor still vibrates and rotates irregularly but it had smoke coming out of it once

 

[Tench745]

ok i wont make that mistake again
the motor still vibrates and rotates irregularly but it had smoke coming out of it once

The way it's behaving and the smoke sounds like you damaged the windings on one phase in the motor.

 

[Foamforce]

hey im making a custom build
so i need any good 2200 kv motor which u trust and like 6 dollars

Just so you know, 2200kv doesn’t tell you how much power the motor makes. You can have a very small 2200kv motor or a very large one. Here is a thrust chart for the 2212/2200kv motor. It shows you the thrust of that motor when used with various voltages and various props. You want about a 1:1.5 weight to thrust ratio for your airplane. This chart shows that if you used a 6x4 prop and a 3 cell battery with this motor, it produces about 837g thrust. So that’s good for an airplane of around 558g all up weight (which includes the battery).

http://www.flybrushless.com/motor/view/50

For around $6, any of the generic motors that look like this one are fine. Most of them are orange instead of blue, but they’re all pretty similar.

https://valuehobby.com/e400-2200kv-outrunner.html

 

[Merv]

hey @Merv
do have have good motor reccomendations?

No, they all work well and all of them will burn out if you push them too hard or fail to properly hook them up.

I use the cheap stuff, all of my flying buddies use the expensive stuff. I have not found any difference if quality, there is a difference in service between cheap components and expensive components.

I buy the cheap ones so when I push one too hard, it doesn’t hurt as much.

 

[quorneng]

Coderteam1
Just to be absolutely certain this is a picture of a motor connected and running to the same type of servo tester.

Note the ESC is connected to the servo side of servo tester (it has 3 sets of pins). The battery balance lead is not used.
The ESC plug to the servo tester has to be the right way round (black wire to neg (~). Having the plug the wrong way round does no damage, it simply will not work.
That particular motor is a CF2822 1200kV. Cheap (Ali Express). It is a 180W (16A) motor when on 3s with a 9x6 prop.

 

[Coderteam1]

Coderteam1
Just to be absolutely certain this is a picture of a motor connected and running to the same type of servo tester.
View attachment 233604
Note the ESC is connected to the servo side of servo tester (it has 3 sets of pins). The battery balance lead is not used.
The ESC plug to the servo tester has to be the right way round (black wire to neg (~). Having the plug the wrong way round does no damage, it simply will not work.
That particular motor is a CF2822 1200kV. Cheap (Ali Express). It is a 180W (16A) motor when on 3s with a 9x6 prop.

Yoooo all....am very happy cus this setup worked.....my motor up and running. lets gooooooooooooo!



am so happ ( in the words of tucker budzyn )

 

[Coderteam1]

hey guys it stopped working
the motor is not arming

it is giving very rapid beep beep sounds

 

[Coderteam1]

beep beep sounds finished but motor has started stttering again guys pls help

 

[Coderteam1]

guys help my motor is alternating between beep beep every 0.25 secs and stuttering

 

[quorneng]

Rapid beeps are the ESC telling you it does not like the signal it is getting, usually the throttle is not at minimum.
Stuttering is almost certainly a bad connection. This can be 1) a bad connection in any of the 3 wires from the ESC to the motor or 2) a broken connection inside the motor or 3) a burnt out component in the ESC. There is nothing you can do about 2) or 3) so thoroughly check the ESC to moto connections.
The only way you can check whether it is a motor or ESC fault is to replace one and see if it cures it.
Warning. Do not leave the motor 'stuttering' for more than few seconds as it is over loading the ESC. Stutter for too long and you will have a broken ESC.

 

[Coderteam1]

I have a brand new simonk 30a so i don't think that's the problem