newbie brushless motor issue...

[ojoe86]

i have bought a used wraith told needed a stator? (motor smoked) anyways i have orderd and installed the stator but the motor will not run unless i bump it. thinkin the stator could be bad again or i may have got one terminal to hot? when it does run its running rough..
the wraith has a timbuk2 esc and 13.5 turn ballistic motor

[JSN]

first thing is make SURE the sensor cable is seated on both ESC and motor... unplug/replug it. If that does not do it then I'd say either something is bad on the senser board in the motor, you have a bad sensor cable or the ESC has an issue.

Since the motor was smoked my vote is for a bad sensor board in the motor... I think you can replace this board in the ballistic motors.

John

[Charlie-III]

Try what JSN stated.
If still no good, try recalibrating the ESC to the RX. It's covered in the ESC manual (which is also online.....)

[JSN]

I forgot one VERY important thing... DO NOT TRY AND MAKE THE MOTOR RUN FOR MORE THAN A SECOND OR TWO!!!!! when you have a sensor not reading and the motor shutters runs rough or needs a little help to get going it can/will burn up the ESC!

[ojoe86]

ok ok so the sensor cable is the 6 prong small wires? and the sensor board looks like its in rough shape, maybe a little melting action went on in there?

[TXJeeper1]

Yes that is the sensor wire and yes it sounds like the sensor board is your problem.

[ojoe86]

it can cause it to run like is bad outa balance per say? also can it cause no reverse? i can see the esc getting the signal but the motor just barley would try to move... did i mess up the esc?

[JSN]

Yeah melted sensor board is not good...you can either replace it OR use it for something semi-go fast and run the motor SENSORLESS... your T2 cannot do this.

This is just an easy search... I don't buy much form tower myself.
TowerHobbies.com | S5942 Novak Ballistic Timing/Sensor Assembly (540/550)

[ojoe86]

yeaa thats cheap enough, think my esc ok tho?

[JSN]

it can cause it to run like is bad outa balance per say? also can it cause no reverse? i can see the esc getting the signal but the motor just barley would try to move... did i mess up the esc?

#1 YES, without the sensors the ESC cannot run the motor correctly.
#2 Possibly, the ESC cannot read the motor rotor position correctly so see #1.
#3 this is because the ESC does not know where the rotor is and cannot start it.
#4 Probably not... just don't try and run the motor any more!!!

John

[ojoe86]

thanks man i really appreciate all the help so fast!!! guess ill be calling a couple hobby shops in the morning... thanks again man!!!!

[JSN]

[ojoe86]

where do you get most of your parts (like this one for example) offline? im sure ill be needing lotttttssss more parts

[JSN]

RPP Hobby | Radio Controlled Cars, Trucks, Boats, Helis, Planes, Plastic Models

RC Cars & Trucks, RC Helicopters & Planes - A Main Hobbies

[indiana mudcat]

Make sure the sensor board you buy is the "crawler" one, your ESC won't function correctly with the normal one.

[ojoe86]

i have looked on the sites but dont see anything about "crawler" sensor board. my motor is the 540 13t novak ballistic.... any ideas where the crawler timing assembly may be?

[indiana mudcat]

S5942 is the normal sensor board most places will carry. S5945 is the crawler version. Novak doesn't list the "crawler" one on thier products page, only as a replacement part under the "crawler" motors. You won't have instant reverse or drag brake without it.

As a side note, the S5945 board is all that's needed for a non-"crawler" Novhack motor with replaceable boards to function on a Goat or Timbuk2. Castle and Tekin ESC's don't care which board you use.

[ojoe86]

so i def need the s5945 part number for my crawler to be correct? only can find it on the novak site...

[ojoe86]

i have Timbuk2 ESC and a 13.5 ballistic engine. is this the part i need for my crawler thanks in advance guys!!!

[ojoe86]

anybody know? (this part only says 18.5t - 21.5t) Novak Electronics - Ballistic Crawler Timing/Sensor Assembly