How to Find Wire Functions of BLDC Controller Which don't have Labels on Wires

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[@jamesthomas8481]

Finally someone putting it in plain English and simply explaining and defining a speed controller. Magnificent work. I look forward to checking out more of your work.

[@EVCustoms]

Thank you very much James!

[@mohamedshafeelmohamedbilal6364]

@@EVCustomshow to find learning wire and display wire by reading board

[@muhametkondi6966]

NOW, EVERYTHING IS CLEAR AFTER I WAS UNCLEAR! Thanks for this explanatory video

[@brickcity9mm896]

I was looking all over the internet for a video just like this that breaks down teaches you how it works.👍

[@rajk3156]

One of the best videos....learnt a lot ..... thank you

[@TH3L3L3]

Thanks for this explanatory video. I really appreciate it. Thumb up 👍

[@marcellucassen8033]

Very impressive, a lot of information in this video and very clear to understand. 👍👍👍

[@startcherif]

Thanks for your time,I love your work

[@EVCustoms]

You give me strength to keep doing what I do... Thanks Cherif Bouzaza!

[@secureguard673]

now this is what I was looking for, thank you very much for showing us this most important video. amazing.

[@EVCustoms]

Thank my friend.....

[@stevederosa7415]

Very well done. One of the best, I will watch several times to absorb it. Thanks

[@yosefalfredo7076]

instablaster

[@MahendraKumar-cr9td]

X

[@MahendraKumar-cr9td]

X.

[@MahendraKumar-cr9td]

X. O9 ox xxxii xxxvi. O o

[@MahendraKumar-cr9td]

Xxxxxxxxxcx c. o x9

[@thecam0073]

DUDE!!! Thanks from Cam Moto!

[@ziadfawzi]

Very useful video. Thank you.

[@mhmdsaleh3502]

I really like this scientific method of testing ..thanks alot

[@adamkostan8671]

Nice work 💪 Keep more video's coming 📹

[@aungzawmyint9037]

Thank you very much for your carefully explained.

[@wesnxs]

thank you this was a very helpful video🛴

[@EVCustoms]

Thank you wesnxs

[@robertorodriguez1845]

thank you best love the video ...the besst ..

[@DKLVE]

Super !!!😀👍 Thanks a lot!!!!

[@georgegates526]

Very few videos this good!!

[@manjumajjagi9332]

Very much usefull information,keep it up

[@EVCustoms]

Thank you!!!

[@0dbm]

Little scary with all those twisted ends ’ I like it This video is priceless, thank uou

[@zbytpewny]

Thank you very much.

[@orlatris96]

Excellent video, probably for me, the best I've ever seen. Please tell me if this graphics on the board is the same for all controllers? Thanks for clarifying me. Greetings and much success.

[@EVCustoms]

Some labels is same, but 85-90 of controllers have different labels

[@sridharsri4385]

Thanks a lot for giving the knowledge about the controller

[@treemoon999]

Useful.. . Thanks

[@ianthompson3520]

10 out of 10 🙂😀

[@prasannakumar8832]

Very good explanation about bldc controller.Very useful video.thanks a lot.

[@Excaliburt]

Nice video thanks. I don’t like the computer voice. Your voice is better. I am American and you are very easy to understand for me, your English is very good.

[@EVCustoms]

Thank you Robert.. I will do my best to give voice on my videos...

[@nurmit.c3211]

Kiitos !! Ostin uuden boksin missä ei ollut mitään merkintöjä.

[@default19in]

Tx for detailing madam..

[@mrkeopele]

thank you, maybe you can, I am upgrading a controller on one of my ebikes. the one that came with the kit is rated at 15a continuous and when i use the motor at full throttle going up to 1200 watts on the meter that would be 24a and i've had the motor connectors melt causing an open on one phase, so i searched for a higher capacity controller, got a 48 volt 2000w which should be close to 40a continuous. in looking at the wiring there is no display connector, i have opened it up and looked at all the connections on the pcb and see a place that looks like wiring could go there for a display, and i am hoping with the connectors i am getting i can connect it easily to try it out, it may be sine wave and have smoother operation also, but i want the programming options i have with mine now that has the KT-LCD3 display. so do you know about using a controller that doesn't have a display connector and if i might get lucky soldering the display wires onto the board? and are most controllers programmable from common displays, mine is a 48v 2000w

[@aldisgarais]

I like your video description and I wonder if I can program the controller?

[@WhyNotCycles]

Όλοι οι σύγχρονοι κινέζικοι controllers έχουν BH και BL? Εξαιρετικό βίντεο!

[@EVCustoms]

Nai file sxedon panta.. poly apla to BL (Brake Low) sindeete ston arnitiko polo tis mpatarias gia na ergopiithei kai to BH (Brake Hi) ston thetiko polo tis mpatarias gia na energopiithei, kanoun akrivos tin idia douleia apla me diaforetikous polous.

[@WhyNotCycles]

@@EVCustoms και κάτι τελευταίο. Η δουλειά τους είναι να κλείσουν τα ρεύματα του μοτέρ ή να δουλέψει το μοτέρ ως γεννήτρια και να φρενάρει γεμίζοντας μπαταρία?

[@EVCustoms]

@@WhyNotCycles I douleia tous einai na metatrepsoun ton ilektrokinitira se gennitria, diladi o elegktis anorthonei tin trifasiki se DC sinexomeni tasi kai epita sindeontas tin mpataria san fortio, giayto polu prosoxi! an einai full fortismeni i mpataria polu apla den leitourgei to ilektroniko freno.. dioti kovete apo to BMS board.

[@WhyNotCycles]

@@EVCustoms Very useful tips! Thank you!

[@q4uconsulting]

Thanks for this, this helped me re-map and re-wire the wires of one of those highly generic Chinese E-bike handles (with lights on/off switch, throttle handle and battery display) to the wires on the controller board. Thing is, the 6-pin connector often fits, but the wiring is completely incorrect. Yesterday evening I had it back working again !

[@manp1039]

what ar you using to put the motor table which allows it to free spin when testing it with controler?

[@matatisan]

Hey, great video. I need your help. I am trying to use the electronic brakes, it works but only for the wrong direction. I tried to change the motors phases and change the direction in the controller, but it didn't help. do you have an idea for how to change the braking direction without changing the motor direction?

[@EVCustoms]

Your motor is geared hub motor?

[@PatriotsGunClub]

Great instruction !!! I am wondering if by any chance you might have a general idea of what the letters/writing on the actual PCB's means or refers to, the ones that were not obvious anyway ?? These all came from an UN-labeled 48v-500w controller originally in an ewheels ew-19/ew-20 which blew a few of the 9 output mosfets.... the only nomenclature on the PCB itself is: F2H3719A0 and FLS1205 and FOC9_YZ_D L - white, many ? {one of these is in a connector marked Brake, assuming it is "Low Brake" when shorted to it's connector mate which is black} H - ? FD - purple ? DC - orange ? DMS - orange/green stripe, many? YY - ? SDA or ADS - ? YJT - ? XH - ? XZ - pink {I believe these are for speed or gears} SS - purple {I believe these are for speed or gears} SD - green w/white stripe {I believe this is for signal from throttle} Z5 - red w/white stripe {I believe this is for 5vdc to throttle} H5 - red {Hall from motor 5vdc power} U - blue {Hall from motor phase} V - green {Hall from motor phase} W - yellow {Hall from motor phase} CSYB - ? YJ - ? YBM - ? VH - ? DZ - ? ZZ - ? CZ - ? GND - black {I am assuming that these all are ground, many} Any help would be greatly appreciated !!

[@rsajjid]

Hi , do you have pedal assist info were the sensor has to be connected in controller

[@THEPAINOFITALL]

Thank you

[@donwright3427]

Thanks. them wires can be confusing and costly when your controller goes pop!

[@adilc9785]

can you please suggest a programmable controller that can be used with TFT displays

[@salawatkhan7398]

Thank u for this video, Please tell speed wire in hailong controller

[@igazmondo2542]

Great video, I have an controller with error code 09. Is it fixable? What shall I replace? Thanks in advance your help

[@fumanchutripitaka6639]

Just got a 'Thumb Control Throttle' that I want to connect to 48V 1000W brushless controller. Previously used 'Twist Throttle' that came with the conversion kit but it F****d Up! So got another one and that didn't last long either. Thought I'd try a 'Thumb Throttle' because there is less to go wrong!? (and yes clearly tempting fate with that comment!) What I want to know is, when I connect the 'Thumb Throttle' to the controller using the 'Twist Throttle' connection I will need a separate 'Ignition' or 'On/Off' switch. This is because the 'Twist Throttle' has the 'On/Off' switch built in. But assuming the throttle operation uses the Red - Black - Green wires I have 3 wires left to choose from Brown - Yellow - White to connect the On/Off control? Any suggestions? Or would the 'Thumb Throttle' work if I connected it to the 'Pedal Assist'?

[@TheBozn]

Great video! But I really need some help if anyone knows this. Unfortunately my controller does not have the same markings as the one you showed. I got a pack controller including a throttle with key switch(2 connectors with 2+3 wires), but the controller has no TH for throttle or any markings on most cable connectors. Could it be the connector with pink(SP+4.3v)-black(gnd)-puple(TS) for throttle signal? Also, how is the ignition marked on the circuit board? I don't want to short the wrong cables. Please help me!😬 Edit: the unknown cables from the motor controller that also fit with the connector to the key switch on throttle(white-yellow), are the following: 1. Red(VCC1)-orange(36v+) (says electronic door lock in chinese) 2. Orange(36v+)-black(gnd) 3. Brown(DD)-black(gnd) Then there are 3-4 more identical 2-wire connectors, but they say like high brake, low brake, charge port etc in Chinese.

[@brandon4812]

I’m stuck just like you I have labels but not the same my light flashes if I spin my wheel it shows speed but no throttle. I opened the controller to inspect all looks fine but still no throttle. I must have something wrong or just not hooked up

[@rahulpatelgujratahmedabad3497]

Good tiching karte hai 👌👍👌👌👍👌👍👌 👍👌👌👌

[@MyAssassin36]

How would you go about connecting a 5v headlamp?

[@knighttime19]

fd- ,fd+,sd- and sd+ what those for ? I am trying to find the reverse function in my controller, is there any sign that the reverse pin should have?

[@SlobodanMiletic]

Searching the same. Have you found?

[@uday20101]

would make a video on how to connect extended battery for ebikes

[@HeliMarcReviews]

Hello. My Controller has a Cable called DS. If its connected to ground the speed drops from 45kmh to 25. Beside this Cable is a hole on the pcb which has no cable and is called GS. Is Gs connected to ground the third gear which gives me more than 45kmh? There is also a TA hole with no cable. Maybe a fourth gear?

[@krasimirkrastev6375]

How can I connect a key switch in to a controller that switch on only by the display M button?

[@wg2egeg732]

Is the engine power in the control or in the file please reply and thank you

[@TheMrjogas]

My controller have 3 speed .its 2kw controller.now its only one speed left,but was all good Any help or thoughts appreciated or suggestions.its something maybe todo with motor load that damage controller.

[@TheBadhri]

How did you find the throttle wire ?

[@choosesmoke2769]

good day boss,, can you help about my ebike problem,base on your video i dont see that related in my e bike ...

[@jonwisnieski3758]

Hi can you explain how connect lcd KT screen with control with cable use? Thanks

[@HatarMyspace]

Excellent video. Had so much problem with the same controller and motor. What brand controller is it and does other controllers have the same wire text? Please do a kuntan kt controller. I can send you one for free from aliexpress if you do a video.

[@EVCustoms]

Hi... this controllers didn't have brand, there are all Chinese..

[@EVCustoms]

And markings always is different my friend...

[@herel6408]

Legendary.

[@user-gc8gm1us6e]

How to get this alternator?

[@kostasmoustakas4804]

Πολύ καλη δουλεια. Μηπος ξερεις σε controler 500w δεν δουλευει ούτε το high ουτε το low brake. Απ έξω φενετε καινουργιο απο μεσα ηταν μαυρο κι'αραχνο πολυ βρόμικο ειχε και κατι πυκνωτές τρυπιους τους αλλαξα αλλα τιποτα. Εχεις καμιά ιδεα μηπος; Αναμενουμε νεο βιντεο! Σ'ευχαριστώ καλες βολτες.

[@EVCustoms]

Κώστα σε μερικούς ελεγκτές υπάρχουν έξτρα δύο καλώδια για να ενεργοποιήσεις το mode του e-break για να λειτουργήσουν, ή μπορεί να έχεις full φορτισμένη την μπαταρία άρα όταν πατάς το e-break δεν έχει πού να διοχετεύσει την ενέργειά του ο κινητήρας...

[@enriquesanz8281]

Hello, great video ... the problem is that I have a KT controller, with 12 mosfets and hall sensors, PAS and an accelerator with a current switch and three LEDs for battery charge level. It does not have connection cables for Display. I have bought a KT LCD5 Display, with five cables (+/-, control (blue), Data1 Rx, Data2 Tx. And I cannot find any electrical diagram of how to connect the cables to the pins of the controller board. Can you tell me? Which pins of the controller board do I connect the cables to? Thank you.

[@mikeg6633]

Most controllers use bluetooth and a phone or tablet. No display

[@alixkandemir.]

I have the same problem. Did you solve the problem?

[@kumods]

thnks for the video, i have an ask, the White wire (xx in the board) its the speed limit wire ? it should be conected to White gnd wire? waiting for your answer and thanks again

[@mikeg6633]

That wire does not get any space on the new controller. It is the speed limit wire and it should be labeled ABS on your old controller board.

[@wg2egeg732]

Is the engine power controlled?

[@INGLETE1]

yo tengo un problema, mi funccion de sensor pass y accelerador solo funcciona si hago un puente entre positivo y linea despues de conectar el accelerador y el sensor pass en su sitio, cual puede ser la averia????? la parte logica el chip???? graciass

[@dollarbil961]

So If I'd add a Bluetooth module to the programming pins using 5v vcc gnd tx and rx, I could eliminate the need of buying a display and use my phone instead?? There are a couple of ebike Bluetooth programming apps on the android market already available.

[@EVCustoms]

Hello my friend... this is not so easy... ;) you must know the interface of each controller...

[@dollarbil961]

@@EVCustoms any 12v pins for lights?

[@CossyEveryDay]

Hi guys, what does the ZL pin and how can be wired?

[@mikegerarddiscion4089]

can i ask a question... what are the wires connected to the lcd display

[@mikegerarddiscion4089]

can you level them please

[@automoto95]

I have unidentified pins: SLA and AUX named What is that for?

[@NeilSnapePhotography]

I have watched your videos many times. I still learn from you. I have tried two new 36v ebike controllers that are paired with s866 displays. One controller has the 6th white cable with the usual 5 hal return cables. The other doesn't. I tried soldering a white cable onto the F3 hole along side the other HAL returns. With or without the sensor both controllers have erratic speed showing on the display. It falls to 0 km/h and can jump up to 45 fluctating quickly. This of course makes power to the motor just as erratic as the speed changes. The original (two) controllers never had a problem. Any idea of what this could be? PS I checked signal on the white wire, 5V until once a rotation which falls to near 0. PAS sensor is working fine. No errors.

[@EVCustoms]

You mean the extra white cable came from the motor? if yes this wire is for speed signal output.. is not necessary to connect ti controller... the controller can calculate the speed from three power phase wires..

[@NeilSnapePhotography]

Yes there is a signal but since it is a geared motor the speed reporting is all over the place and of course falls to zero when not peddling. I saw somewhere else that if there is an external three wire cable and plug it is possible to connect the white wire there. IS that correct?@@EVCustoms

[@EVCustoms]

Tell me again, this white wire came from motor side and didn't exist from controller side or the opposite?

[@NeilSnapePhotography]

Yes geared ebike motor HAL wires including the 6th white wire speed sensor. Two different controllers one with a white wire to F3 beside the YGB HAL wires on the board, another new controller same mother board yet no white wire. Soldering in a white wire to the same trace on the board as the other one changed nothing. . I don't think it could be the UART commination mode as neither controller would work after. From what I understand the white wire sends 5v until the magnet shorts the power to ground momentarily each revolution of the wheel (wheel assembly with geared motor ). @@EVCustoms

[@EVCustoms]

About 5v output with a magnet you are correct, if you have same controllers for 95% it must work... note that this F-pins they are programmable and they programmed from the factory..

[@fly4fun24]

Some how i dont have 5v anywhere on the board, there is a 7805 5v regulator thas no voltage on pin 1 output. or pin 3 input

[@prasannakumar8832]

I have 48v 1250w controller ,if I use 48v 750 watts motor with this controller , possible?

[@eamonnthatcher]

Great video, my wires for pedal assist have come off my controller board how to I find where to attach them on board please any help would be great appreciated please

[@EVCustoms]

Hi.. send on my email you bldc controller board photo.. [e-mail]

[@doger1203]

Is there a pdf of the terms???

[@StekovicTin]

Subscribed ! I don't know what wires on 60V controller are for tail light

[@mikeg6633]

12v+ and any ground

[@robertdominguez8258]

So how do i turn the board on ... ? Do i connect the vcc to a 5 v or straight to the battery ?

[@EVCustoms]

To battery plus

[@mikeg6633]

My Kelly KLS-S uses battery voltage. I see a lot of questions that could be answered with a diagram of the controller wiring. Do most companies not have a website with diagrams and installation tips?

[@burak6871]

Good day. I would like to control a TGM7 series 24V 6A geared motor using a 24V BLDC motor controller (lithium battery) and Arduino. I would appreciate your help on this subject.

[@remis1989]

Hi, have a problem with controler, my controler have a label 3 speed 48v 30A, but hes have a 3 plug and 6 wires, i cant find 3 speed wires, also i dont have a speed changing butto so i found in wires all gears from 1 to 3 and bypass it, but speed doesnt change, max speed on my moped is 41km/h, whats wrong?

[@davidstackhouse4935]

Hi, So to get rid of speed lock, You could just deactivate the EBS?

[@zeroedout]

Try connecting XS to Gnd

[@mikeg6633]

No. Generally if the speed wire is in the motor harness it will be marked as ABS on the circuit board. I'm not sure if you can cut it and go fast. The controller may not work without it. Some companies are serious about their speed limits.

[@martinboulianne2360]

How about a more complex controler.. one with alarm etc

[@scottnewton6677]

Will it harm the controller to solder an xt150 connector to the battery wires? I mean will the heat from the solder harm the controller at all ??

[@paulmryglod4802]

After a few inches of cable from the controller you're good to go with soldering a connector. I've gotten my controller hot but safe to touch without an issue. Probably around 110-130f

[@pepopepez105]

Hi sorry one question, where would the sensor PAS go connected?

[@mikeg6633]

Good one. I don't think most third party controllers have PAS. I have a Kelly KLS-S and it has no allowance for PAS. Still waiting for a reply from kelly.

[@sYoshki]

Nice video, but is there any way how to find display connectors?

[@mikeg6633]

Most modern controllers use bluetooth. Your phone or tablet is your display.

[@brandon4812]

Take your display apart look what wire goes to speed then posi/neg run to any open you have to connect to. On your controllers mother board the speed wire is usually a thin wire beside one of three big coloured wires for wheel motor, mine has one big yellow one thin yellow together on board thin goes to speed. Or if you have the old connecting block and installing new screen look at old screen again take it apart follow speed wire to connecting block. Then you can relate which wire goes to what on the block on harness

[@kennethcoutinho4439]

How is the regenerative braking activated

[@michaelhansen698]

informative but I got a E-drive Model EC1922A08 i find no help on the board and colour on wires are also off

[@edgdeal76]

I don't see a bl any where on my controller circuit board

[@thamaraikannan4752]

How to check Cruise control function and eabs please

[@sunnyhaider3687]

Hi sir, I have a problem My motor works okay if I use self learning line, but without that it doesn't work (it means in normal working after applying throttle it doesn't work) I check my throttle already it is okay. can you help me?

[@edwinjidat8885]

Your hall sensors malfunction. Try to unplug the hall sensor cable. If work, tht means problems at hall sensors

[@youssefskitiwi9159]

maroc tanks

[@terrorent]

High brake yellow one wire is activated when battery power is connected wire has no power. Low brake black and white has + and - when grounded/ connected brake activated.

[@treemoon999]

Dear sir , l need your help plz,🙏 In my controller There is no 5 vote on throttle cable . It shows only 1 Vote.... do you know why ?

[@lazherbenjemaa3317]

I found thé 3 wires of throttel on m'y contrôler but not those for assistance p.a.s how to find them ?.thanks

[@YouCantNow]

Hello My friend i have a problem with signal it’s not working, do you know how i can check it

[@mikeg6633]

Thank you so much. My throttle is a 12v and I discovered this after checking the circuit board labeling. I ordered a 5v throttle and that should fix the issue. BTW That mistake wont cause a red light on a kelly kls-s. After the throttle is engaged the controller will power off.

[@sridharsri4385]

In my controller motor wire was getting melted when I am using in full the motor voltage was 48 volt and 1500w what is the solution for this problem at the time of heating two face wires from motor get short circuit andar MOSFET was blown can you help me

[@jamest.5001]

Need a higher wattage controller! Or less voltage battery,

[@choosesmoke2769]

my ebike is have 48volts only and the controller doesnt have any label that can see the watts.now my problem is ,the battery have power but the motor wont run..

[@anonymuseastde7815]

Great Video,i need this in german 😉

[@patrocman4818]

Getting e2 error. Seems to be all wired correctly ???

[@Heinz-sq2eo]

Hello i have a QMWHEEL V20 fatbike, what i want exact, is that the bike will be limited at 5kmh with just the trottle and that with peddle it goes 25kmh, but only the trottle max speed 5kmh, now in stage 1 just the trottle does 10kmh and that is illigal in the Netherlands, the rule is just 5kmh so i want put a switch on it, or a electric responder key or codes or something that it just goes 45kmh (what it can ride now max speed) when I want, and when I press the key or switch that I just can limeted the trottle at 5kmh but that you can paddle and trottle together the max can be 25kmh, but only pressing the trottle and no peddle can be max 5kmh.. and top speed 25kmh with peddle and trottle but the trottle need to stop at 5kmh, the controller is from dongguan jing hui I hope that I have explained it well if you need more info or something please let me know

[@mlow587]

Bought a new controller wired it to a working bike and nothing .All connectors info are only in Chinese! The make is SODIAL. Got 5V at the throttle plug , took a resistance reading on the 3 motor wires and two are 9k ohms and one is 7 K. My old working controller had 3k on all wires. Anybody knows what a good reading would be?

[@myway760]

If its possible show how to connect program cable please 🙏 🙂

[@mikeg6633]

Program cables are generally the old serial port connectors from the 90's. My laptop doesn't have one. Hopefully there's a plug for a bluetooth chip. Your controller company should sell them.

[@christopherowens2635]

Do you know if running a 36v battery and 36v rated controller on a 48v hub is legit? Like, will I ever run into any type of issues?

[@EVCustoms]

The only issue you will have is lower speeds.. about -30%

[@christopherowens2635]

@@EVCustoms I’m fine with the 30% reduction power. If it’s safe to proceed with this under voltage setup, I assumed to always buy higher voltage hubs if they all cost the same?

[@EVCustoms]

It is safe.. don't worry about it..