Powerdynamo wiring

TLDR: I don’t understand electrical very well

Powerdynamo 12v 100dc

https://www.treatland.tv/puch-E50-powerdynamo-CDI-p/powerdynamo-puch-71-18-799-dc.htm

There is only one wire coming out of the cdi to power my accessories as opposed to a bunch on the stock points units I am more familiar with. To send power to everything (minus the horn I deleted) do I daisy chain the power line through the terminal or is there a better way.

Thanks in advance

B2849A0E-9F1E-470D-89E2-28E1FAC472EB.jpeg

Re: Powerdynamo wiring

Alan Jackson /

im no expert on electrickery but I'd just use one wire to take the power to somewhere hidden where all your electric bits live. headlamp? near to your switches? cant you just use the bikes present wiring?

Re: Powerdynamo wiring

You want all of your electrical loads to be in parallel. Daisy chaining the hot wire from the powerdynamo unit on one side of the screw terminal block, and connecting each load on the other side, will work fine.

Re: Powerdynamo wiring

Dirty30 Dillon /

^^^ Brian's advice is what you need.

The Powerdynamo you bought has VDC output, so you'll want everything in parallel and everything with a good solid ground.

You should strip your harness of anything unneeded in the least, but I always suggest building a harness if you're going to be upgrading your system in this manner

Re: Powerdynamo wiring

🇮🇹💦 Of the Loin /

do it like this

(you could fuse each link if you wanted too)

wirre_crap_delete.png

Re: Powerdynamo wiring

Alan Jackson /

but wouldnt it be better to fit that block in the headlamp fed by one wire?

its fed by one wire as it is.

Re: Powerdynamo wiring

A Brief google search on “parallel circuit” left me in the dark but I will look into it further.

From what I understand from the responses I am ok to proceed with the following:

6276A3DA-0DE6-4394-80F4-8C6CA38C0C93.jpeg

Also for reference I’m using:

-stock puch taillight with 12v 10w bulbs

-12v 35w halogen headlight (https://www.treatland.tv/ProductDetails.asp?ProductCode=h3-12v-35w-lens-for-saying)

-2x vertical fixation secondary tail lights

(https://www.treatland.tv/ProductDetails.asp?ProductCode=vertical-fixation-tail-light)

-

And my light switches are led toggles from eBay

(https://www.ebay.com/itm/LED-Motorcycle-Switch-ON-OFF-Handlebar-Mount-Push-Button-12V-For-Work-Light-US-/384192820654?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=711-127632-2357-0)

Re: Powerdynamo wiring

Series vs parallel circuits:

https://workforce.libretexts.org/Bookshelves/Electronics_Technology/Book%3A_Electric_Circuits_I_-_Direct_Current_(Kuphaldt)/05%3A_Series_And_Parallel_Circuits/5.01%3A_What_are_Series_and_Parallel_Circuits

Your switches, except for the kill switch, do not need ground (I'd use SPST switches). Make sure that your brake light switches are the right type (normally closed, which means they'll be open when the brake levers are at rest).

Re: Powerdynamo wiring

Re switches:

This is the wiring instructions. They look to fit what little I know about parallel circuits but there is only the one wire coming out of the cdi so I don’t understand the positive/negative bit… I thought I would have to ground one on the switch

D52A97CB-76E9-44C3-8929-DBCF08A2C065.jpeg

The brake switches are the red button Maguras

(https://www.treatland.tv/magura-brake-light-switch-RED-BUTTON-p/magura-brake-light-switch-blk.htm)

Re: Powerdynamo wiring

If you want clickable links , do not bracket them .

Re: Powerdynamo wiring

> Jonathan R wrote:

> -------------------------------------------------------

> Re switches:

>

> This is the wiring instructions. They look to fit what little I know

> about parallel circuits but there is only the one wire coming out of the

> cdi so I don’t understand the positive/negative bit… I thought I would

> have to ground one on the switch

All voltage is relative. The powerdynamo unit uses the brown wire (frame "ground") as its reference.

You do not necessarily need a ground in your switch, depending on how you wire it up. The most common approach is to use the switch as a simple open or closed circuit (no ground required), and to use that to control the hot wire to the relevant light. It doesn't look like the switches you bought will allow for that, but it's hard to tell given the lack of information. You could use these, but it would make your wiring more complicated.

> The brake switches are the red button Maguras

>

> (https://www.treatland.tv/magura-brake-light-switch-RED-BUTTON-p/magura-brake-light-switch-blk.htm)

These are correct for what you have designed.

Re: Powerdynamo wiring

Ok thanks for the info Brian. If you would be so kind as to explain how to wire the switches I would appreciate it.

Re: Powerdynamo wiring

It depends on how the switches you bought actually work; I did some google searching and couldn't find anything conclusive.

They may switch 12V to "the function" wire when the button is pressed. They may switch ground to "the function" wire when the button is pressed. Without better documentation your only way to know for sure is to buzz it out with a multimeter or test it with a simple circuit.

If the switch connects 12V to "the function" wire when the button is pressed, connect "the function" wire to your light and ground the other terminal of your light.

If the switch connects ground to "the function" wire when the button is pressed, connect one terminal of your light to the lighting circuit, and the other terminal of your light to "the function" wire.

Hope this helps.

Re: Powerdynamo wiring

Thanks again Brian and for all y’all’s help. I think I have a good starting place now. Worst case I will just hardwire everything to always on.

Re: Powerdynamo wiring

No problem and good luck!

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