connect new controller and throttle to ebike

nikoss

1 µW
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Jul 21, 2012
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please help me to connect a new controller and thump trottle to my e-bike. i need a detailed wiring diagram because dont work connected on the body of ebike. submit wiring diagram ebike-controller and throttle. thanks so mutch.
 

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Huh? You posted a detailed wiring diagram. What is it you don't understand?
 
OK. I understand your problem.
The three throttle wires should be on a white connector that matches one on the controller.
The main power connector on the controller has three wires: thick black, thick red connect to the battery, and the thin red has to be connected to battery "+" as well for the controller to work. You cab connect it directly to the thick red if you want, but the best way is like this:
The yellow and brown on the throttle are the switch on it, so join the thin red on the controller to one of them and join the other one to the battery "+" somewhere (maybe the thick red wire). Now the controller will switch on/off at the throttle. Next, connect the green wire to the controller side of the switch (to the thin red also) and now the LEDs on the throttle come on when the controller is on.

In simple terms, cut the thin red out of its connector; join it to the brown and green wire from the throttle; connect the yellow wire to the battery "+".
If you want, you can connect the green and yellow wires to the battery "+" instead. Then the LEDs will be on all the time the battery is on, which is useful to remind you when using lipos.
 
Try the plug labeled pedelec. Your controller is not designed for a throttle, but should still work using those wires for throttle.

Ignore the wires to the switch for now. just connect the other three wires, black to black, red to red, and the last wire to the last wire on the pedelec plug.
 
Troyfavazzo said:
Which wires are for throttle on bt controller KT48ZWSRKTB-SJTO2LB
What does the label say? Most KT controllers that support throttle will have the throttle voltage range printed on the label. It will say something like: "Speed set: 1-4.2V"

If you don't see that on the label and none of the wires are obviously labeled as throttle, then the controller may only support pedal assist (unless you are able to open the controller and find the pads to add the additional wires needed.

BTW - welcome to the forum :thumb:
 
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