Hello. I have an electric bike with a worn out 36 volt motor. I bought a 36 volt E-bike motor to replace it. However, the E-bike motor has 8 wires on it while my old motor only has two ( positive and negative). Does anyone know which two wires are the positive and negative feeds on the E-bike motor? It has three larger wires (beige, blue, green) and five small wires ( beige, blue, green, red, black). Please let me know, thanks
Wires on E-Bike motor
- Thread starter ssegro
- Start date
MadRhino
100 GW
You bought a brushless, 3 phase motor with hall sensors. You will need a new controller, for your new motor can't be powered by the one that was powering your old motor.
biohazardman
100 kW
My guess is that your new motor is a brushless unit it requires a special controller to make it work. Your old motor may be brushed and would not require as many wires only a couple to the motor. Likely your old controller will not work with the new motor. Some motors have controllers built in so have less wires coming out of them as well. If you can get us pictures or give us brand and model numbers we will know if this is so.
dogman dan
1 PW
Yeah, the bad news is your old system is a brushed motor, so your controller won't run the new motor.
The good news is your new motor will be much more efficient, and last longer. So the upgrade to a new brushless controller will be worth the money.
What continent are you on? It may help us recomend a new controller vendor.
Brushless controllers come in two types. Sensored, which use all 8 wires. And sensorless that only uses the three big wires. Unless you buy your new controller from the same vendor as your motor, you may want to choose a sensorless one. That way it will be much easier to figure out which wire sequence to use with 5 less wires to fool with.
I looked for a cheap sensorless controller on ebay straight from china but didn't find one very quick. This is a very good controller though, from an excellent vendor. http://www.ebikes.ca/store/photos/C3625-CL.jpg
The good news is your new motor will be much more efficient, and last longer. So the upgrade to a new brushless controller will be worth the money.
What continent are you on? It may help us recomend a new controller vendor.
Brushless controllers come in two types. Sensored, which use all 8 wires. And sensorless that only uses the three big wires. Unless you buy your new controller from the same vendor as your motor, you may want to choose a sensorless one. That way it will be much easier to figure out which wire sequence to use with 5 less wires to fool with.
I looked for a cheap sensorless controller on ebay straight from china but didn't find one very quick. This is a very good controller though, from an excellent vendor. http://www.ebikes.ca/store/photos/C3625-CL.jpg
John in CR
100 TW
dogman said:
Please!....You guys have turned something simple into something difficult. Just yesterday I connected 4 different controllers to a motor with no color coding at all on the hall wires and 2 of the controllers had multiple colors on the phase. The average finding a correct combo time was maybe 2 minutes, and none of them were color on color, since I wanted to reverse direction when I tried the factory controller. Most of that time double checking to be sure there were no shorts before turning the key on and twisting the throttle.
If there was a good sensorless controller, then we'd go that route of course, but they still have problems.
Ssegro,
Get yourself a new controller with flexibility in voltage. It gives you an easier upgrade path, because your new motor isn't restricted by a voltage limit like a brushed motor is. It's worth spending $20-30 more and getting voltage flexibility, along with all the options like programming link, regen, cruise control, 3 speed switching, etc.
dogman dan
1 PW
Pardon me for making it sound hard, it's not. But some have a problem even figuring out why thier bike won't run with a dead battery. Aplolgies if I made it sound like you can't handle it. I didn't mean you aren't smart enough to figure out the color codes. Merely wanted you to know there is an even simpler way, if that is to your liking.
Buy the controller from the same place as the motor, and you should have a plug it in and it runs situation.
In case you are wondering what the heck we are talking about, the wires are color coded but there is no standard for matching colors for all motors and controllers. So you start by matching the colors and see if it runs. If not, then start trying other combinations, swapping b and g or whatever till you hit on the one that runs good in forward. You swap colors on the big wires, and match that color swap on the little ones.
Buy the controller from the same place as the motor, and you should have a plug it in and it runs situation.
In case you are wondering what the heck we are talking about, the wires are color coded but there is no standard for matching colors for all motors and controllers. So you start by matching the colors and see if it runs. If not, then start trying other combinations, swapping b and g or whatever till you hit on the one that runs good in forward. You swap colors on the big wires, and match that color swap on the little ones.
Hello. Thanks for your suggestions. The motor I have is:
http://www.e-bikekit.com/shop/index.php?p=product&id=115&parent=8
They have a controller available for it:
http://www.e-bikekit.com/shop/index.php?p=product&id=168&parent=13
The motor has three large wires ( blue, green, beige) and 5 small wires ( blue, green, beige, red, and black). It looks like the controller has a red and black main cable that connect to the battery. I Assume that the three large wires connect to the 3 prong plug on the controller ( although the colors are not visible in the picture). Any ideas on which of the small wires connect to the motor and which connect to the throttle? Do you have to connect the brake wires or can you leave them unconnected?
Since I already have the motor and a twist throttle, I would like to just order the controller to complete the bike. Does anyone have experience with connecting the controller to a motor and throttle? Please let me know when you get the chance, thanks
http://www.e-bikekit.com/shop/index.php?p=product&id=115&parent=8
They have a controller available for it:
http://www.e-bikekit.com/shop/index.php?p=product&id=168&parent=13
The motor has three large wires ( blue, green, beige) and 5 small wires ( blue, green, beige, red, and black). It looks like the controller has a red and black main cable that connect to the battery. I Assume that the three large wires connect to the 3 prong plug on the controller ( although the colors are not visible in the picture). Any ideas on which of the small wires connect to the motor and which connect to the throttle? Do you have to connect the brake wires or can you leave them unconnected?
Since I already have the motor and a twist throttle, I would like to just order the controller to complete the bike. Does anyone have experience with connecting the controller to a motor and throttle? Please let me know when you get the chance, thanks
gtadmin
10 kW
Why don't you just ring or email e-bikekit and ask which controller you should buy from him to suit the motor you bought from him :?
dogman dan
1 PW
Yep, that would be the simple solution, just email them or call, and order the controller that goes with the kit. Worth it for the 20% more range you get going brushless.
If your throttle is three wire, hook up the red to red, black to black, and the white wire on the controller to whatever you have. If four wire, usually the wire you wouldn't use is the purple one.
You don't have to use the brake cutoffs, so just leave that plug empty.
If your throttle is three wire, hook up the red to red, black to black, and the white wire on the controller to whatever you have. If four wire, usually the wire you wouldn't use is the purple one.
You don't have to use the brake cutoffs, so just leave that plug empty.
As everyone else has stated, your old motor is a "brushed" motor and the new one you just got is "brushless"... The old controller will not work with the new motor..
Order a controller for that motor from the same company, explaining to them which motor you bought, so they can send you the appropriate controller and they should send you a "plug and play" setup.
Order a controller for that motor from the same company, explaining to them which motor you bought, so they can send you the appropriate controller and they should send you a "plug and play" setup.
chisixer6
1 kW
ssegro;
th controller that you have listed is not the correct one for your hubmotor, you bought the older hubmotor that they have on sale for $200. the controller you need is this one, its on their install drop down, middle of page.
http://e-bikekit.com/electric-bike-kit-installation-e-bikekit.html
it also shows you the wiring plugs. I have the same hubmotor and controller.
Also if you buy from them real soon, there is 20% off if order is $150 or more.
question: was the wire and connectors already assemble on the wheel or did you need to put the pins into the connecters? I had it both ways from them.
Jerry
th controller that you have listed is not the correct one for your hubmotor, you bought the older hubmotor that they have on sale for $200. the controller you need is this one, its on their install drop down, middle of page.
http://e-bikekit.com/electric-bike-kit-installation-e-bikekit.html
it also shows you the wiring plugs. I have the same hubmotor and controller.
Also if you buy from them real soon, there is 20% off if order is $150 or more.
question: was the wire and connectors already assemble on the wheel or did you need to put the pins into the connecters? I had it both ways from them.
Jerry
