Wiring help needed

[cld351]

Hi I have a 48v controller with5 wires the circuit board has them marked - ,sp+,ts,Vcc, + the throttle/display has 6wires marked ,bat+, display,tx ,rx, hall and neg can these be wired together to run a hub motor if so what wires go to which,thanks

 

[fill]

Some e-bike controllers can be ran headless (without a display), But only in the out of the box state, so no ability to configure anything.

The 'pinout' you provide for the display "bat+, display,tx ,rx, hall and neg " is not promising, however? is there a on/off switch on the display? if so can you test the voltage on the 'display' pin against ground "neg" when the bike is off and again when on.
IF the voltage rises to that of the full battery charge with the bike turned on?? Shorting the 'Bat+' and 'Display' pins/wires sould enable the controller without a display attached.

However testing this theory by simply shorting the connection without confirming the voltage state when the bike is on could easily brick/fry the controller..

 

[cld351]

Ok mate so I have hooked the positive to negative up from the throttle/display to controller .It turns on the battery displays full I now have full voltage coming out of the blue wire labeled display from the throttle display,I have nearly 5v coming from the red wire marked rx on the throttle display and nearly 3v coming from the yellow marked tx ,and no power at the feeling 3 on the controller?so where does that leave me?

 

[docw009]

You have a display that can send commands and receive data on the Tx and Rx lines, You're saying also has a throttle in it, Displays are stand alone, They can power up with only the battery and ground wires attached, That;s what you have done, The blue wire, if connected to the proper input on the controller, will start it up. SInce it's 48V, randomly picking controller connectors is guaranteed to blow it up,

The controller does not have RX or TX so it can't receive commands and send data, Even if it had those line, it probably won't use the same command syntax as the display. I would forget about trying to use your display with it., Unless both are the same manufacturer,

How about a pic of the controller label and also the display? Connectors too, They may be common enough that a reader has seen them or owned them,

 

[E-HP]

Ok mate so I have hooked the positive to negative up from the throttle/display to controller .It turns on the battery displays full I now have full voltage coming out of the blue wire labeled display from the throttle display,I have nearly 5v coming from the red wire marked rx on the throttle display and nearly 3v coming from the yellow marked tx ,and no power at the feeling 3 on the controller?so where does that leave me?

Randomly connecting wires on two incompatible devices is a quick way of frying either or both devices. Assuming it’s not too late, post some pics of what you are attempting to describe. If they are already fried, buy both the controller and display as a kit/set so they are compatible. Absent knowledge, purchasing components separately seldomly works out.

 

[fill]

Perhaps fill us in on the details of what it is your attempting to achieve? My assumption/guess at the reasoning behind your Q was/is to run a bike 'headless' for perhaps stealth reasons?? and you are attempting to disconnect the correct display from your bike handlebars?? - ( As i leave my bike unattended in the city I have aspirations in this direction...)

48v is enough to fry any logic circuit so to avoid well intentioned misdirection into bricking land (fingers crossed- not too late), And as others have interpreted your questions differently take a few relevant pics of the controller label, display and any ID it has?, help us help you..

The headless hack above will work with KT brand controllers and some others though my experience is limited to the KT brand.

 

[amberwolf]

Hi I have a 48v controller with5 wires the circuit board has them marked - ,sp+,ts,Vcc, + the throttle/display has 6wires marked ,bat+, display,tx ,rx, hall and neg can these be wired together to run a hub motor if so what wires go to which,thanks

Without further info, I'll assume you have one of these

whcih can't be used without a matching controller.

if you feel like hacking it apart to disconnect it's throttle sensor from the rest of the stuff inside and not use any of that other stuff (which won't work without the matching controller), you can try the suggestions in this thread:

Need help wiring TF 100 6 pin throttle to controller

Hello everyone, i need help with wiring TF100 6pin throttle to controller that doesnt have coresponding connector... also if anyone can assign functions to controller wires for rest of the scooter... Thank you :) here are the images of controller and throttle connector

endless-sphere.com

or see what you can figure out from other threads using this type of unit, like this

Scooter Dual motor controller wiring throttle wire

I have a dual motor scooter, the original controller died and I received two new controllers to replace. However the wiring is different, please see the image attached. Where would I be able to find the wiring or manual for this controller, there is A and B controller. The display and cable from...

endless-sphere.com

Otherwise, you will need to replace either your controller or your display/throttle unit with the matching part for the other piece you're keeping, or replace both with a kit that includes all the pre-matched bits you need.