Hub motor. High current with no load

[bikefan1]

Hi.

I'm having trouble with my first ebike build. Which is that the motor turns in right direction but it is loud and rough and draws high current with no load (blew 20A fuse).
Poor video but you can hear the sound when the motor is spinning.
https://www.youtube.com/watch?v=vfQCmul1FuI

This is Conhis hub motor and Kelly controller KBS48121.

Motor phase wires are color coded and matched with controller also colored wires.
Also hall sensor wires.

Any ideas what the problem is?

 

[Drunkskunk]

the color of the wires almost never match between motor and controller, even when you buy them together. You have a wrong combination. Since it's turning, it' what is called a false positive. You'll have to go through the rest of the possible combinations until you find the one that works.

 

[dogman dan]

yep. don 't ride it like it is,, it will blow your controller.

 

[Ykick]

Use this info - https://endless-sphere.com/w/index.php/Determining_the_Wiring_for_a_Brushless_Motor

 

[999zip999]

When testing use very little throttle and if it's not working with a little throttle don't wot the throttle.

 

[bikefan1]

Alright I think I have figured it out. I followed instructions at https://endless-sphere.com/w/index.php/Determining_the_Wiring_for_a_Brushless_Motor
Now the motor takes much less amperage and does not have this rough sound.

If someone has the same setup like me here is the combination.

Sensors.
Cont. Mot.
B -> B
G -> Y
Y -> G

Phase.
Cont. Mot.
B -> B
G -> Y
Y -> G