Kt controller info 03

[alonstar]

Hey
i have kt controller 500W 48v 22a
i understand that the error info 03 showing because of the hall sensor not connecting.
BUT my motor is sensorless!
please tell me i didnt just bought the wrong controller and there is a way to program it to make it work with sensorless motor..
or any other workaround that u may know..
im so sad i really wanted to have my scooter back on
thanks for the help everyone!

 

[E-HP]

please tell me i didnt just bought the wrong controller and there is a way to program it to make it work with sensorless motor..

it's a possibility. nobody can tell without knowing which controller you purchased. there isn't a way to convert a sensored controller to sensorless. if it's dual mode, then it would operate sensorless when there are no halls plugged in.

maybe you can post a link before you buy the replacement.

 

[docw009]

I guess you re-order a KT square wave controller that has no hall sensor inputs.. They don;t seem to take very long to ship to the US from China . Maybe 10 days.

 

[alonstar]

I guess you re-order a KT square wave controller that has no hall sensor inputs.. They don;t seem to take very long to ship to the US from China . Maybe 10 days.

By any chance you saw a KT Controller 48V 500W 25A compatible with sensorless motor, anywhere on ali-express?

 

[alonstar]

By any chance you saw a KT Controller 48V 500W 25A compatible with sensorless motor, anywhere on ali-express?

+ sinewave

 

[alonstar]

it's a possibility. nobody can tell without knowing which controller you purchased. there isn't a way to convert a sensored controller to sensorless. if it's dual mode, then it would operate sensorless when there are no halls plugged in.

maybe you can post a link before you buy the replacement.

Hey thanks your reply!
Thats the one i purchased :

https://a.aliexpress.com/_okcr9LD

Right now i left the controller sensors cables unplugged and only connected the phase wires to my motor.

 

[alonstar]

it's a possibility. nobody can tell without knowing which controller you purchased. there isn't a way to convert a sensored controller to sensorless. if it's dual mode, then it would operate sensorless when there are no halls plugged in.

maybe you can post a link before you buy the replacement.

Also adding a picture of the exact one in the product page

 

[Chalo]

Hey
i have kt controller 500W 48v 22a
i understand that the error info 03 showing because of the hall sensor not connecting.
BUT my motor is sensorless!
please tell me i didnt just bought the wrong controller and there is a way to program it to make it work with sensorless motor..
or any other workaround that u may know..
im so sad i really wanted to have my scooter back on
thanks for the help everyone!

If Kun Teng makes a controller that works for sensorless operation, I certainly haven't heard of it.

EDIT:

Okay I googled it, and they exist. Still I haven't seen one yet.

 

[E-HP]

By any chance you saw a KT Controller 48V 500W 25A compatible with sensorless motor, anywhere on ali-express?

I typed in "kunteng sensoreless" into their search and a bunch of sensorless and dual mode controllers showed up.

 

[docw009]

The 25A KT sensorless square wave controller is a tough bird to find. PSWPower used to sell them, but no more.

The trouble with Aliexpress is that there are often half a dozen sellers offering the same thing, with the same pictures/words, and you wonder if they are all the same seller. Moreover, the ads may be full of mistakes. They show a controller with Hall connector and call it sensorless,or they mix sine wave and sensorless together, when there is no such thing,

I can find the T09P, which is a 22A KT sensorless controller. TopBikeKIt sells one, and since they really are an ebike parts vendor, I think you can trust their listing. Make sure you buy the T09P and not a T09S, which is sine wave,

https://www.aliexpress.us/item/3256806158199935.html?spm=a2g0o.productlist.main.9.35fb6463CbZExJ&algo_pvid=08cb029d-951e-4511-b47e-0e05f9cc011d&algo_exp_id=08cb029d-951e-4511-b47e-0e05f9cc011d-4&pdp_npi=4%40dis%21USD%2133.50%2130.82%21%21%2133.50%2130.82%21%402103242517236041780091526e4fdd%2112000036832787109%21sea%21US%21742508029%21X&curPageLogUid=InldBMWHWkpt&utparam-url=scene%3Asearch%7Cquery_from%3A

 

[alonstar]

The 25A KT sensorless square wave controller is a tough bird to find. PSWPower used to sell them, but no more.

The trouble with Aliexpress is that there are often half a dozen sellers offering the same thing, with the same pictures/words, and you wonder if they are all the same seller. Moreover, the ads may be full of mistakes. They show a controller with Hall connector and call it sensorless,or they mix sine wave and sensorless together, when there is no such thing,

I can find the T09P, which is a 22A KT sensorless controller. TopBikeKIt sells one, and since they really are an ebike parts vendor, I think you can trust their listing. Make sure you buy the T09P and not a T09S, which is sine wave,

https://www.aliexpress.us/item/3256806158199935.html?spm=a2g0o.productlist.main.9.35fb6463CbZExJ&algo_pvid=08cb029d-951e-4511-b47e-0e05f9cc011d&algo_exp_id=08cb029d-951e-4511-b47e-0e05f9cc011d-4&pdp_npi=4%40dis%21USD%2133.50%2130.82%21%21%2133.50%2130.82%21%402103242517236041780091526e4fdd%2112000036832787109%21sea%21US%21742508029%21X&curPageLogUid=InldBMWHWkpt&utparam-url=scene%3Asearch%7Cquery_from%3A

Thanks for replying
Before i purchase, i wanted to clear some things.
Are you saying that its impossible for my motor to run sine wave controller? as a sinwave requires sensors? So whatever i order i must make sure its a square wave?
My last controller was described as a sinewave so i wonder how i worked and the ride was quite smooth. im confused haha

and another quick question-
If my battery current is 30A (48V 21AH), and my motor is 500W,
To reach its full potential of the motor- i need to get a 25A controller? or a 22A is the choice?

Thanks again!!!

 

[E-HP]

To reach its full potential of the motor- i need to get a 25A controller? or a 22A is the choice?

Hard to tell since you haven’t said what motor you have, just that it’s 500W. How do you define “full potential”.

 

[alonstar]

Hard to tell since you haven’t said what motor you have, just that it’s 500W. How do you define “full potential”.

Its 500W brushless sensorless

 

[alonstar]

Its 500W brushless sensorless

+ The scooter is K11 kryptone, i dont have a lot of info about the motor sadly

 

[docw009]

This only applies to KT models. Never seen a KT sinewave advertised as sensorless. Don't know if there is a technical reason for that. The motor experts might know about that. Not me.

Is this what the K11 Krypton looks like ? If so, does it use a KT display?

 

[alonstar]

This only applies to KT models. Never seen a KT sinewave advertised as sensorless. Don't know if there is a technical reason for that. The motor experts might know about that. Not me.

Is this what the K11 Krypton looks like ? If so, does it use a KT display?
View attachment 358185

thats the one, i dont have the original display so i installed the kt display..
Im clueless of what to do now

 

[raedy07]

I can find the T09P, which is a 22A KT sensorless controller. TopBikeKIt sells one, and since they really are an ebike parts vendor, I think you can trust their listing. Make sure you buy the T09P and not a T09S, which is sine wave,

https://www.aliexpress.us/item/3256806158199935.html?spm=a2g0o.productlist.main.9.35fb6463CbZExJ&algo_pvid=08cb029d-951e-4511-b47e-0e05f9cc011d&algo_exp_id=08cb029d-951e-4511-b47e-0e05f9cc011d-4&pdp_npi=4%40dis%21USD%2133.50%2130.82%21%21%2133.50%2130.82%21%402103242517236041780091526e4fdd%2112000036832787109%21sea%21US%21742508029%21X&curPageLogUid=InldBMWHWkpt&utparam-url=scene%3Asearch%7Cquery_from%3A

will this controller work with any 3-phase motor if stripped of all electronics? can be connected to 3 bare phase-wires?