Kelly KLS7230 + LMX

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ArnoldRimmer
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Kelly KLS7230 + LMX

Post by ArnoldRimmer » Dec 07, 2017 1:02 pm

Hello all,
sorry if I am in wrong thread. I have issue with my new controller KLS7230S and motor LMX 3-7kW. The is autodetect function , but it can not identify it and show hall error. I read that there can be rveresed wires so I change yellow and blue wireof hall sensors but it does not help, any Idea?

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skeetab5780
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Re: Kelly KLS7230 + LMX

Post by skeetab5780 » Dec 07, 2017 1:50 pm

Ya I ran into this same problem, the motor and controller wont work together.

Apparently the motor we have puts out a weak hall signal and the KLS series controllers cannot decode it properly.

You will have to get the KBS series controller if you want to use that motor unfortunately.

I have a KLS controller sitting around collecting dust now because of this.

ArnoldRimmer
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Re: Kelly KLS7230 + LMX

Post by ArnoldRimmer » Dec 07, 2017 3:07 pm

My reseller answered that there is no issue with this controller and motor..

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skeetab5780
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Re: Kelly KLS7230 + LMX

Post by skeetab5780 » Dec 07, 2017 4:24 pm

I had a bad case of denial myself

It was not a happy day

ArnoldRimmer
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Re: Kelly KLS7230 + LMX

Post by ArnoldRimmer » Dec 08, 2017 7:19 am

Maybe some 10k resistor will fix it?

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skeetab5780
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Re: Kelly KLS7230 + LMX

Post by skeetab5780 » Dec 08, 2017 9:30 am

No clue, that's over my head

All I know is that if Adam from LMX stopped using the KLS series with these motors then it is more than likely the simplest way to happiness. The KBS series are the same price but it sucks buying a new controller for no reason I know

If anyone else wants to chime in feel free since I don't know that actual problem, but I couldn't fix it. I tried every setting in the KLS user program it didn't even think about helping. Controller would have errors and faults all over the place when riding, and it was fairly dangerous to control

Obviously not the same bike, but same problem same setup


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Re: Kelly KLS7230 + LMX

Post by Hillhater » Dec 09, 2017 7:03 pm

ArnoldRimmer wrote:
Dec 07, 2017 3:07 pm
My reseller answered that there is no issue with this controller and motor..
Askthat reseller to set it up for you if he is so confident...with the proviso that if he cannot do it, he replaces the controller with one that will work.
..Or just take the prooven solution of skeetab and replace it with the KBS and "resell" the unuseable one......back to the guy that sold it to you
This forum owes its existence to Justin of ebikes.ca

ArnoldRimmer
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Re: Kelly KLS7230 + LMX

Post by ArnoldRimmer » Dec 14, 2017 4:51 pm

Hi all, I have good news, you can dust off your KLS unit :)We found how fix issue with LMX BLDC. You can regulate hall sonds from motor with regulate diodes. Output signal is based on GND (-) and we measure sondes with osciloscope and there is some signal noise with double amplitude about 0,5V (when is log 0 output fom sonde) So diodes block this and motor works fine. But I have no idea what is this signal used. And true is that phase output from unit is not sin wawe but it seems that output is only trapezoidal waweform.

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