Dear ebikers,
I had to postpone my project for months following family issues. I have a 12F controller form Nucular and it will drive a MXUS 4t hub motor. I built a 20s 14p battery. Excuse me if I have dumb questions but the last build I done was very easy (Em3ev) for connections.
Question 1
https://torquetech.co.uk/collections/throttles/products/electric-bike-thumb-throttle-12-84v-led-display-voltmeter-on-off-kill-switch?variant=10154897637423
I want to connect to this controller to a Thumb Throttle 12-84v with an ON OFF Kill Switch (green, red, black, yellow and blue cable). This throttle is delivered with a JST-XA connector (2.5 mm pitch). The Nucular controller accepts JST-PA connector (2 mm pitch). So basically, I cut off the JST-XA connector and crimp a new one as in the picture.
Red goes to +5, green is the throttle signal and black is ground.
The switch ON/OFF has blue and yellow cables. I don’t want them to connect them directly to the battery. I can connect them to the ‘remote connector’ of the controller, cut their terminal and crimp a new JST connector. So, the yellow cable goes to K1 and the blue cable to the ground. Am I right?
Question 2
https://torquetech.co.uk/collections/switches/products/handlebar-3-speed-position-spdt-switch-hi-med-low-electric-bike-ebike-scooter-uk?variant=10154897801263
Then I need to connect the Handlebar 3 Speed Position SPDT Switch HI MED LOW. Here it is the same issue. It is delivered with a JST-XA connector with 3 cables, red, green and black. Where do I connect this switch? To the ‘speed sensor’? But from the diagram, it seems that only two cables are used. which ones should I use? Black connects to ground and green and red cables both connected to SP?
This is the description of the connection from torquetech.co.uk
Pin Connections:
Position 1 (Low speed): Green to – Blue
Position 2 (Med speed): Black to - Black
Position 3 (High speed): Red to - Yellow or Green depending on controller
SPDT Switching Pairs:
Position 1 (Low speed): Green & Black
Position 2 (Med speed): No connection
Position 3 (High speed): Red & Black
Question 3
https://lmxbikes.com/en/chassis-parts/83-trp-zurich-brake-set-for-lmx.html
Then I will connect the Trp Zurich ebrake, the same one used by the French company LMX64. There are 2 pins. I guess will connect them to the connector labelled ‘brake’. One pin will go to the ground and the other one to IO8. I guess there is no polarity so I don’t care about which pin will go to the ground or IO8? Right?
Question 4
https://www.alibaba.com/product-detail/electric-bike-accessories-cruise-control-for_60081909479.html
I will add a cruise control as for long ride it is better for my thumb. I have not yet ordered it but it will be this one:
From the image one can notice 5 cables:
Black and red together and
Black, white and yellow together.
Is the black and red going to the ebrake connector?
I guess I have to use the I/O1 connector with black going to the ground and the other colour? Can you please let me know?
Many thanks for your comments and keep safe.
Pierre