KT Sine Wave Controller on a Voilamart motor + Counting the Magnets in the Motor.
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- เผยแพร่เมื่อ 20 มิ.ย. 2021
- Please check out the links below.
They are affiliate links so if you make a purchase I will receive a few cents commission but it won't cost you a penny more.
Thanks for your support.
I finally figured out how to count the magnets in my motor and setup the LCD-3 Display.
Bafang BBS01, BBS02, BBSHD Mid Drive Kit
Amazon.co.uk amzn.to/3y6XWdZ
Amazon.com amzn.to/3w51RXl
eBay.com ebay.us/39OXlW
eBay.co.uk ebay.us/ElYb7K
Voilamart kit similar to my original system
eBay UK ebay.us/AV38FZ
KT Sine Wave Controller/Kit
eBay UK ebay.us/kGcnVC
eBay.com ebay.us/asy5lJ
Amazon UK amzn.to/2SdaoJU
Amazon.com amzn.to/3gWCdQd
Aliexpress s.click.aliexpress.com/e/_AdA6eZ
KT LCD3 Display
Amazon.com amzn.to/3jM6cMP
Amazon.co.uk amzn.to/2Thz98t
eBay.com ebay.us/n5Wu8n
eBay.co.uk ebay.us/rZywcn
Switch gear for horn etc ebay.us/17XqfZ
Cheap Ebike Controller
ebay.co.uk ebay.us/8dPcJm
Amazon.co.uk amzn.to/3zZMoec
Amazon.com amzn.to/2UrJxKP
ebay.com ebay.us/WXDo9m
Aliexpress s.click.aliexpress.com/e/_At4yWR
Battery building Supplies
Cell Holders 10S ebay.us/POV3ap
Cell Holders 5S ebay.us/SZVatA
Solid Nickel strip 8mm x .15mm ebay.us/2iHNTL
Solid Nickel Strip 10mm x 0.15mm ebay.us/UZMSvA
18650 Cells
If you are looking for 18650 cells to build a battery pack here is where I buy mine. I have always used LiitoKala cells and found them to be good quality.
Note the Name brand cells are copies, they are NOT genuine but do have similar properties to the original and are still excellent batteries.
Panasonic Look alike s.click.aliexpress.com/e/_AD9 - ยานยนต์และพาหนะ
![ช่วยพาฉันผ่านเวลา - วสันต์17 [Official MV]](http://i.ytimg.com/vi/HFnntWoqc54/mqdefault.jpg)
Sir, you are absolutely amazing. Thanks to your video I was able to set the P1 value correctly on my KT controller. I mentioned your video in the Endless Sphere forum because this is very helpful for others I think.
I really like the video, bro I build my own bike just like you
Man you have helped me so much with part 1 and 2 of this video if we was face to face I would probably have to give you a hug even the way you charge your ebike has been helpful so I have subscribed to your channel and will definitely be watching more of your videos thanks mate very smart guy 👾✌👍
Very good info. Alot better than removing the wheel and striping the hub down. Great vid.
Hi Ali
Glad I found this video
I am working on my first broke down ebike from kit from ebay it just stopped working when my son was out on it so I haven’t a clue what it is exactly yet but display went first replaced it with same model, still nothing but it lights up.
Then realised after reading I needed to match controller to display. Been at it six weeks now lol
So got a kt controller and an lcd3 to try again.
Just waiting on extension cable coming today sometime.
But thanks for the info it has really helped
Good man, keep up the good work 👍👍
It's good to see you charging from solar Ali. I see the PWM 5 is still going strong too. Excellent video.
Yes thanks mate, working perfectly. 👍
excellent video thankjs very much
@Ali Bro great video there are also other settings in the lcd to configure
Hi, nice work, I have 2 same motor, but the original very noise, what is the model of KT controller please.
I leave my PAS disconnected and just pedal when I want and power how much I want to give the motor with the throttle, that way I can pedal and power independently. It’s so much easier and less confusing.
I've tried it both ways and with this controller prefer to leave it disconnected or at a low setting too. My Bafang has a set speed for each setting which is much better.
Nice video Ali, I think the regen settings are under the "C" mode settings if I remember correctly.
Yes mate they are.
However Regen is not a big deal for me so I haven't looked any further at changing it.
Maybe next time I'm working at it I'll play with the regen.
@Ali Bro i have just installed this kit onto my bike have not tested it yet great to know that it is 46 magnets in the motor as default for the lcd is 100 however i have the 1000w version of your controller and voilamart engine kit do you think the magnets will be the same ?
Probably but watch this video to see how to check. th-cam.com/video/NjOPmtw3z5Q/w-d-xo.html
@@alibro7512 no worries will do thanks i will be doing a Video on my build shortly for my channel
Where did you find the cruise control handle, on your left with green and red buttons? If possible link please.
Hi
This is the one I bought.
ebay.us/17XqfZ
Would you ever consider building a permanent magnet axial flux vawt or hawt?
I have a kt controller and lcd on my second ebike, very configurable for a commercial level system.
How do you get it to cruise control while your on the bike? What button do you press, for how long?
I built a Vawt a few years ago by copying a design I found on Otherpower.com. It had five feet long blades so a ten feet diameter, rotors made from car brake disks and home made coils. For various reasons I took it down and sold it but often regret doing so.
Yes the KT controller is very nice. I use a momentary switch that was a horn button on this ebay.us/hEkauY
for the ktlcd 3 you push the down button for about 7 or 8 seconds while the bike is moving note only do it once you are above 7 or 8km per hour
How did you figure out to short the phase wires to create the cogging effect? Genius level troubleshooting.
LOL, I've been called many things but never genius.
I've been working with motors for years so just something I picked up.
I have bought a KT controller for voilamart ebike. Do you have any photos of what engine wires. Pas and throttle wires are matched to the KT controller please. Great video
Hi Paul
For the motor wires you will have to use trial and error to get them right. If wrong the motor will make an odd cogging noise and won't spin but it only took me two or three goes to get it right as there are only 3 wires to the motor. I used a throttle bought from ebay and don't have pedal assist so can't help much there but the pedal assist and throttle will have three wires each. Your Voilamart throttle may have more than that but probably two of them are switch wires and one may be an extra power or ground wire. If you have a meter you can use it to find the +5V, Nutral and sense wires with the old Voilamart controller still connected.
@@alibro7512 thanks I will try and match the motor wires up first.
Hi.
Really enjoyed watching your video useful info and knowledge.
I have a 1500w motor on a mtx39 wheel.
When I first had the kit.
I had a kt sensorless Square wave controller it worked fine with phase wires blue to blue. Green to green. Yellow to yellow.
When it was on way out I tried a kt sinewave controller.
Power was going to the motor but would only make a slight bit of movement.
I have heard that putting phase wires wrong way can make the motor get very warm quickly.
Did you experience this.
May give it another go but try the phase wires different way round.
Thanks.
Thanks.
Yes I had that happen and had to change two of the phase wires. I guess it is a safety thing as with a cheap controller it would go in reverse.
So did you find the motor getting very warm or not.
And which colours went too what colour.
I had that display.
Now got a Kt Lcd8H
It is a much better nicer colorful clearer display.
Maybe going for the ukc1
Thanks.
Also what is that gps speed app your useing.
Also the sinewave controllers seem to be sensoed. And the square wave controller sensorless i wonder if thats why it didn't work.
@@davidbishop8482 Probably just the first speedomotor app I came across.
If you didn't connect hall sensors then it may not work at all. This one doesn't work without the hall sensors connected but I have another Sine wave controller that works without sensors but behaves like a cheap square wave controller.
Hi Ali,
I just check the KT controller does has a Motor (Hall Sensor) connecter, but the Voilamert motor didn't come with (Hall Sensor). If the Hall Sensor does not connect to KT controller, will it still work? Cheers
My Voilamart motor has Hall sensors so it works great. The controller will not work without hall sensors.
Hope this helps
Hi Ali, Thanks for your quick response. I just check my Voilamert motor has 3 Wires and (1 connecter with 5 wires). Can you help me with this. Not sure the connecter with 5wires is (Hall Sensor) connecter?
@@vincemanchong9300 The white connector with 5 wires is the Hall sensor connector. It seems to be fairly standard across ebike controllers so should match.
The three wires are the three phase power connections.
@@alibro7512 Thank you for your help, you are a Champ.....
Just incase I fail to fix it myself have you and info on anyone that might be able to look at it for me around Belfast area?
Hi Marty, thanks for the kind words and I'm sure you'll get it going. I have several videos on TH-cam showing how I built my ebike so take a look at those. Use the KISS system (Keep it simple Stupid) and you'll be fine.
Are you getting power from the battery? Use a volt meter to check and if you don't have one then get one. You'll struggle to find the fault blindfolded with one hand tied behind your back.
Is the ignition connection (if you have one) getting full battery voltage? If your throttle has a key switch is it connected properly and turned on?
Is the throttle getting 5V from the controller?
Is the Hall sensor connection good? Cheap controllers usually don't need Hall sensors to work but KT controllers do.
It is only after checking all the hardware basics that you should look at the software setup but be certain to take photos of all settings BEFORE you make any changes. It is really easy to get lost and forget what the default setup is.
If still having problems get back to me.
@@alibro7512
all sorted Ali 👍
Them kt controllers are good
a lot smoother
Looks like the display went first on the kit but i wasn’t sure and thought it was the controller so I bought one first and when I fitted it nothing happened so I then thought display and replaced it with a s861 display same as original but just got an error e10
So after reading alot I realised they had to work together
As soon as I connected the new display lcd3 it came to life lol
Thanks for the help appreciate it
Think I’ll build a few more
Wouldn’t mind trying a 5000w dirtbike
Thanks again 👍
@@martygreenburn28 I want to build a 5kW road bike sometime, too old for a dirt bike.
Maybe convert an old 125.
Glad to hear you got it sorted and thanks for letting me know.
@@martygreenburn28 The only issue I have with my KT controller is the throttle is a bit twitchy with it. I hope to resolve that soon.
Was this a 1500w motor?
Yes 1500W direct drive motor, no gears.
Wish you could have shown the way you put the wire between the phase wires couldn't see
Filming is not my area of expertise. 🤣
There are three phase wires. Just short them all out however you like and it should work.There is no special trick here.
@@alibro7512 😂😂 thanks but did you leave the battery disconnected not good with electric
@@user-zx9yy6lu9pso long as the controller is not turned on it doesn't matter. The three phase wires only have power when you are driving the motor. For safety it is better to disconnect the battery but not essential.
@@alibro7512 so i short the the phase wires on the controller side,correct sorry in only 14
Lol, no probs.
So you have two wires from the battery. Do not short them out.
The wires we are talking about are the three that go to the motor. It doesn't matter if the motor is sitting on your bed not connected to anything if you short out the three motor wires the motor will be harder to turn and you can feel the cogging of the magnets.
This is harder to feel with a geared motor but might still be possible.
What throttle is that
It's just a cheapo half grip throttle from ebay or aliexpress. Something like this. s.click.aliexpress.com/e/_DCdNgUL
Do you have a Paypal account so I can thank you with a gift?
That's very kind but not necessary. Make a donation to charity instead. 🙂