Will a KT controller be compatible with my hub-drive bike?

[yusufilaa]

2 days ago, my 36v brushless controller stopped working on me (The PAS wire snapped!)
As a replacement, I ordered a KT 36v 15a KT Controller from EBay. By mistake, I didn't look clearly enough at the wiring on it and have realised that the PAS on the controller is a yellow 3 pin and it uses a 1T4 Bafang cable instead of what is normally on my bike (1T3 and a different coloured PAS with more than 3 pins).

I was wondering, if I ordered the extra wiring needed to use the KT Controller (such as: throttle, new 3PIN PAS and 1T4 wire harness) from Ebay, will it be compatible on my rear-hub drive bike? I've attached pictures of the old controller and the new one I've ordered. Any feedback would be very much appreciated.

If it happens to be that the controller will not be compatible, will the other controller I have attached be compatible once I buy the relevant wires? (3pin assist and sensor for this one)

 

[Nealh]

Bafang and KT's aren't compatible not only software/programming wise but also connection wise. With moulded connectors Bafang use Higo connections and KT Julet, they look very similar and may be coloured like wise but the pin outs wire sequence is differently so not std.
If changing controller one will need to change every peripheral item inc the IT4 trunk cable.
Only one part is 100% compatible and that is the hub motor connector as these all use a std wire sequence.

 

[Nealh]

2 days ago, my 36v brushless controller stopped working on me (The PAS wire snapped!)

Why not just repair the PAS.

 

[yusufilaa]

Why not just repair the PAS.

Because I dont have a clue how to solder the PAS wires onto the controller. I've opened the controller up and had a look and its left me more puzzled. I'll add pictures soon.

 

[yusufilaa]

This is fhe broken wire and the controller

 

[vfr400]

Because I dont have a clue how to solder the PAS wires onto the controller. I've opened the controller up and had a look and its left me more puzzled. I'll add pictures soon.

I can't see anything wrong with your controller. What's the problem with it?

You shouldn't have to solder the wires to the controller. There's a connector between the PAS and the controller. Even in the unlikely event that the wires are damaged on the controller side of the connector, you only need to join the wires.

If you don't want to solder, you have to replace your PAS, throttle, control panel and controller as a set. You'll probably need a motor cable too. The whole lot will be about £80 if you go with KT or £50 with Brainpower.

 

[Nealh]

Ah I see, you did a proper number on ripping it out.

With so much of the board covered it's not possible to see.
Some where there should be the remains of two broken short tails, one white and one lilac/mauve.

 

[yusufilaa]

Okay after further inspection ive found out that the 6 wires connect onto them six dots that can be seen in this pic. How do i get them to stick into the controller?

 

[yusufilaa]

Okay after further inspection ive found out that the 6 wires connect onto them six dots that can be seen in this pic. How do i get them to stick into the controller?

I own a soldering iron which i just bought recently.

 

[yusufilaa]

I can't see anything wrong with your controller. What's the problem with it?

You shouldn't have to solder the wires to the controller. There's a connector between the PAS and the controller. Even in the unlikely event that the wires are damaged on the controller side of the connector, you only need to join the wires.

If you don't want to solder, you have to replace your PAS, throttle, control panel and controller as a set. You'll probably need a motor cable too. The whole lot will be about £80 if you go with KT or £50 with Brainpower.

Where can i purchase the brainpower stuff? Cant find it online.

 

[vfr400]

i don't know what you're trying to do, but I'm pretty sure that it's something very wrong!!!

 

[yusufilaa]

i don't know what you're trying to do, but I'm pretty sure that it's something very wrong!!!

Okay I'm gonna stop. Ill just keep ordering parts till sometbing works

 

[Nealh]

Okay after further inspection ive found out that the 6 wires connect onto them six dots that can be seen in this pic. How do i get them to stick into the controller?

Probably not so, from what I can barely see I have seen at least two solder points where a wire was connected.
Between the White & Blue at least one wire likely white was soldered (one can see the broken soldered strands ) if the two share the same track then that is one.

 

[Nealh]

Okay I'm gonna stop. Ill just keep ordering parts till sometbing works

A fools choice that can get expensive.

 

[Nealh]

i don't know what you're trying to do, but I'm pretty sure that it's something very wrong!!!

From what I see the Op has done a proper job and somehow completely ripped the Bafang double hall six wire PAS out of the controller, there is a gaping hole in the exit white grommet where the wire should be located.
However in his own way has decided by the sounds of it to keep buying stuff until he gets it working again ( no logic to this route at all).

 

[vfr400]

Probably not so, from what I can barely see I have seen at least two solder points where a wire was connected.
Between the White & Blue at least one wire likely white was soldered (one can see the broken soldered strands ) if the two share the same track then that is one.

Where's the PAS???? That's not the PAS cable he's trying to connect. It looks like the main harness on the 1 into 3 cable.

AFAICS the wires that he's poked through are already attached on another cable. The wires attached to the controller all come out to a connector. The matching connector is then separate with the broken wires, so he's turned it 180 deg and trying to connect the wires where they started from so that they all go round in a loop.

As always, the story starts half way through, and instead of going back to the beginning and getting the facts, people run around like headless chickens.

 

[yusufilaa]

A fools choice that can get expensive.

Hey, im a headless chicken not a fool

 

[vfr400]

Let's take a few steps back. Please explain what that cable with the bare ends is. Where did it come from? What was it connected to?