1500w controller help.

alan6770

100 µW
Joined
Jun 27, 2018
Messages
9
Hi members I've got a controller that hthe box connections most have been cutoff and I'm struggling with the phase wires and display ones as there's 2 or more of the same colour...also throttle problems too...
Pictures might explain better!
Can anyone help me out with feedback,tips info regarding this matter please..need to get the throttle 3 wires connected but where and to which..??

More details and pictures of the controller it is...
And some of the other inplace connections,
Also what is the 3speed box connection for?
Also all's I want to accomplish is the wheel to run in a basic way?
ie: No display, or any lights etc, just throttle working, or pedal assist, and turn off/on by the battery power switch?
As it's only for assistance as I have severe COPD condition..and have always got around by pedal bike ... thanks in advance..
 

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It can be a bit of a detective work to find out what goes where and controller manufacturers don’t use the same colors at all. Therefore it’s hit and miss to give advice without knowing what you’ve got.

First: what controller is it? Name, picture of the label, link to where you bought it. Was it a kit, what was included? All will help.

Start with getting all the known wires out of the way. Describe what you’re sure of and put these wires or connectors to the side.

It seems there are chinese labels on the connectors. You can translate these labels by taking a picture into the google translate app.

After you’ve done this, how many unknowns are there?
 
I suppose everyone will have different priorities, but speaking for myself, rather than trying to figure a mess like this out, for the price of a new controller, I'd go for a new one with decent documentation....
 
Just do a google image search for ‘1500w ebike controller wiring diagram’ and find the one that’s closest. Generally you can start with the minimum- throttle, 3x thick phase wires, 2x thick battery wires, display if you have it.

3 speed switch will just make it go a bit faster but can run without anything connected.
 
An easier way, might be to open the controller and trace the wires back to the pcb. The pinouts should be labeled. At the very least, there will be more information on the pcb that you can look up.

Here is a video that can better explain.

https://www.youtube.com/watch?v=0nAVWMWxYhI
 
slaphappygamer said:
An easier way, might be to open the controller and trace the wires back to the pcb. The pinouts should be labeled. At the very least, there will be more information on the pcb that you can look up.

Here is a video that can better explain.

https://www.youtube.com/watch?v=0nAVWMWxYhI
:bigthumb: :thumb:
larsb said:
It can be a bit of a detective work to find out what goes where and controller manufacturers don’t use the same colors at all. Therefore it’s hit and miss to give advice without knowing what you’ve got.

First: what controller is it? Name, picture of the label, link to where you bought it. Was it a kit, what was included? All will help.

Start with getting all the known wires out of the way. Describe what you’re sure of and put these wires or connectors to the side.

It seems there are chinese labels on the connectors. You can translate these labels by taking a picture into the google translate app.

After you’ve done this, how many unknowns are there?
 
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electric_nz said:
Just do a google image search for ‘1500w ebike controller wiring diagram’ and find the one that’s closest. Generally you can start with the minimum- throttle, 3x thick phase wires, 2x thick battery wires, display if you have it.

3 speed switch will just make it go a bit faster but can run without anything connected.

What do I do to just use the 3speed switch?
And what wire colours go to where /what
 
You can test the three speed by jumping the center wire (usually) to one of the two outer ones with a bent paper clip or something like that.
One way will make it run slower, the other one makes it run faster.
No jumper makes it run at normal speed
I ended up always leaving mine on high speed, so never bothered with a switch, but just left the paperclip in there.
 
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