DIY Ebike Conversion, Controller Configuration with SW900 LCD Display | DIY Petz

[@mickihart1485]

Very useful information, thank you. I understand now on the complexity of this LED Display is now. Again Thank you and blessed be.

[@RollyPetz]

You're welcome Sir, Stay safe.

[@wbriggs111]

Thank you for the great presentation ,in the way even I could understand. I built my bike but I am not a speedster and I got carried away with 1500w motor and a 20 amp hour battery. I have it wired to 750 w and it has more than I need because I daydream a lot and ride on steep rail road embankments.

[@RollyPetz]

You're welcome Sir, glad to hear that.

[@claudiorojas1234]

P09 is throttle activation delay You can pick how soon the throttle will start pushing the bike Right away after you press it Or after. Thanks great video

[@RollyPetz]

Thanks for the info Sir. Stay safe.

[@stevieboy4302]

Thank you,my pedal assist was to fast. Adjusted now,thanks to you.

[@RollyPetz]

You're welcome Sir Steve. Stay safe and ride safe.

[@rickp7683]

You made that look so easy ,

[@RollyPetz]

Thanks Sir for your comment.

[@MooseMan198]

Thanks homie, very well done

[@RollyPetz]

Thank you for your comment Sir Zach.

[@Boediprasetya]

Can a SW900 be factory reset?

[@dylanponce5354]

When I go to P10 and change it to the option with no pedal assist, pedal assist is still on. Or if I put the option with no throttle assist the throttle is still on

[@RollyPetz]

Good day Sir. Same thing with my conversion. Both are still on even if the configuration is changed. Maybe this how the controller works. hehehehe. Thanks for your observation on this bug as well.

[@sleepingbearffg5008]

Thanks both of you

[@fexaboss8727]

In my case my motor is not moving and the pedal assist is still working after disabling it

[@fabiansanelli1853]

Hi there - I have an 8000w hub with a 72v controller. My bike has no power when I select 72v on the sw900 settings. When I select 60v it works and it goes even faster at 48v. Which one would be the correct setting? I have P14 set to 30

[@RollyPetz]

Hi there Sir Fabian, honestly I'm not an expert on this but what you have is a very powerful motor. But I think the settings would only be as a guide, maybe you can play along as long as the motor works with that settings. Make few adjustments once it works on a particulart voltage. Thanks.

[@sleepingbearffg5008]

Hey brother I just got with cyclone 3k motor... thanks for your input! What settings did you settle on?

[@510bronson]

Hi which voltage setting would I use for a 52v battery Thanks

[@RollyPetz]

Hi Sir Jason good day. You may use the 48V setting Sir..Thanks and stay safe.

[@510bronson]

@@RollyPetz thank you

[@RollyPetz]

@@510bronson You're welcome Sir.

[@sanntechstore1242]

Obrigado! Ótimo video! ❤

[@RollyPetz]

Thaks Sir.

[@JamesMcElroy-d1m]

My controler Jumps from p08 tp p13. missing p09-p12

[@peepowidehard5386]

Thank you!

[@RollyPetz]

You're welcome! and stay safe.

[@gianfragalli]

Thanks for your very helpful video! Can this display be used with Tongsheng tsdz2 engine? I would like to replace the vlcd5 that I am currently using. Thanks again

[@RollyPetz]

Good day Sir, sorry but I can not tell if these can be used for the said motor Sir. Tnx.

hello Brazil I have a display just like this, from my electric bike kit 72v 2000w motor

[@RollyPetz]

OK Sir, thanks for the comment.

[@Mr_Lok]

Thank you

[@RollyPetz]

Youre welcome Sir Lok.

[@mehmetkan1773]

Hello, I have a 2000w bike, but it does not even reach 40 speeds, the screen is SW900, what should I do to increase the speed?

[@imranuddin4886]

What V and Ah is it?

[@travelwithoutmoving8842]

on the 5 level Pedal assist on first i go about 11 Mph om second i jump to 21 Mph and three about 24Mph . Second should be about 16Mph anyway to fix that? How much difference is on your build?

[@RollyPetz]

Good day Sir. Based on experience, pedal assist levels would only give you an assist or will activate the motor depending on how hard you pedal. Pedal assist level 1 is the lowest meaning you have to put more effort in order to activate the magnet sensor as this is the hardest to perform. If you go up the levels, 2,3-5 means less effort is exerted to activate the motor to give that assist. Even if you are only at pedal assist level 1 you could still reach the max speed @ 26-30 mph depending on how hard you pedal. I think it has something to do with how the magnet sensor senses how many times the rotation of the magnet sensor which is determined by the controller and how much power will it drive the motor. Thank you for your comment hope this is helpful.

[@travelwithoutmoving8842]

@@RollyPetz Thanks for the Reply . I think its because of my Heavy steel frame. Yes i can pedal like dying and get upto 14Mph on pedal assist 1 but on pedal assist 2 easy pedal for 21 Mph. The jump is just too big maybe its only on my bike.

[@RollyPetz]

@@travelwithoutmoving8842 Yes, that's true. Also the higher the pedal assist, much power drives the motor, thus drains the battery faster.

[@بابکآقایی-ف6ط]

Nice

[@RollyPetz]

Thanks Sir.

[@AssoTube]

Hi! Please tell me if the display Sw900A has the same. Thank a lot 🚴

[@RollyPetz]

Good day Sir. Would happen to have a link this one? I think they are the same. Tnx.

[@ramontorrado5085]

Hola buenas. Que velocidad puede desarrollar este Kit. Gracias

[@RollyPetz]

Good day Sir Ramon. The speed of the kits will vary on different scenarios, the weight of the rider, terrain being travelled to, tire pressure and the like. Below are the typical speeds. PAS Level 0 - Normal pedaling speed between 25-30 km/hour PAS Level 1 - Speed between 25-30 km/hour PAS Level 2 - Speed between 30-35 km/hour PAS Level 3 - Speed between 35-40 km/hour PAS Level 4 - Speed between 40-45 km/hour PAS Level 5 - Speed between 45-50 km/hour Battery @ 48V 16AH would like go beyond 60 km depending on the pedal assist levels. Did I answer your question Sir Ramon? Tnx.

[@bernardlanuza4193]

Hi Sir, great guidance... can you refer where can I purchase Sw900 and matching controller for 48vlts 1000wtz 10.4mah battery n motor for my bike convertion kit. Thanks

[@RollyPetz]

Good day Sir Bernard. Usually, the LCD display in case the SW900 is already included when you purchased the conversion kit. Thanks.

[@musmanov4642]

Hi, you did not mention what is P15 for is for? Even if you dont use it, still to know what is that for is interesting. Cheers

[@RollyPetz]

Good morning Sir, based on my readings even though this is not used but what I have read "P15" is the low voltage cut-off for the controller. I think this would be applicable if your battery is not using a BMS to manage your battery in order for this setting could be useful. The value of which is 10% less of the total voltage of the battery you are using. Thanks for your comment Sir. Stay safe.

[@sleepingbearffg5008]

Changed by accident. It did cut off motor.. but very inconsistent.

[@RollyPetz]

So it works...tnx for the feedback Sir.

[@romaingaultier239]

hello thank you for your video. the p14 parameter on my sw900 goes up to 50 A. I have the impression that it is there but inactive because setting it to 1 or 50 does not change anything in torque or speed. possible in your opinion?

[@RollyPetz]

I think that has something to do with battery spedifically on the continous max discharge current the battery can support. Mine supports up tp 30 Amps continous so this functions works on my e-bike.

[@claudiorojas1234]

He is correct that is the continuous current limit of the controller if is not set properly to match the battery it will shut down the bike. If the bike is working fine leave it as it is or ask the manufacturer

[@enygma19]

Hello, there. How can I set up the light to start on when turning the LCD on? Thanks.

[@RollyPetz]

Good day Sir Danny. What do you mean by set up the light, is it the lcd screen backlight? or the sleep time off of the lcd screen? Thanks.

[@enygma19]

@@RollyPetz LCD screen backlight, please

[@RollyPetz]

@@enygma19 Good day Sir Dan. I think this is the only setting you can play with.....P01 Background luminance. 1 is the darkest, 3 is the brightest....

[@leometal5757]

Hi for some reason my battery life bars never go out, Always shows full charge. Any advice?

[@RollyPetz]

Hi Sir, have you experienced draining the battery for your use, example on a longer ride? Base on my experience it will always stay of full bar until such time the battery drains out then it would likely indicate 3 bars then go back again to full specially when you are at stop. That means that the battery almost reached its low voltage disconnect. But if you continue using it, then it will go 3 bars till 2 bars then would disconnect eventually. Thanks.

[@tiggy2756]

Have you set correct battery voltage in settings ?

[@DyLemmaOG]

Is this controller able to show current output?

[@RollyPetz]

Hi Sir, this display shows the ouput power Sir.

[@DyLemmaOG]

@@RollyPetz watts though right and not amps current?

[@RollyPetz]

@@DyLemmaOG yes Sir its watts.

[@ig5501]

Hi, thanks your video, it’s been 1 year and wanted to know your experience updated upon your SW900 LCD Display. I have ordered 2 ebike 12000w with the SW900 LCD Display. I herd there’s a new model ukc1 led color display that just came out not to long ago. But yeah I seen good and bad reviews of sw900, what’s your experience feedback on it ? Is it all weather proof? Is it reliable over all ?

[@RollyPetz]

Good day Sir. It's been almost 2 years also in using the display and so far I have no complains for it. It has been used in all weather conditions and so far it's fine. Nothing to complain about and I have not encountered any issues with it Sir. Stay safe.

[@ig5501]

@@RollyPetz thank u 👍🏼

[@bengalfoodfestival4608]

How can I increase the speed of ecycle or break speed limit with sw900 display. Is it true whether increasing/decreasing tyre size, it may effect speed limit.

[@RollyPetz]

Good day Sir. Speed limit can be change by going through the configuration setup specifically P08-> this sets the speed limit of the ebike. Increasing/decreasing the tire size would affect speed. the bigger is the tire, the faster it will run, not only this but also tire pressure and body weight of the user. Thanks for your comment Sir.

[@kiddermereside]

So do you mean if I put a smaller tyre size ?

[@JesusOurKing]

Any way to factory reset the sw900?

[@RollyPetz]

Good day sir Lee, I was not able to find one. The only reset function I found was only the odometer reset. I'll try to do some research as this is an interesting question as well.

[@guttasnipe4702]

My screen keeps saying…….Info 1…….what does this mean.

[@RollyPetz]

Hi Sir, do you have a screenshot for the screen? Tnx.

[@tiggy2756]

Have 1000w direct drive sw900 ,Display works show's all data but cannot adjust pedal assist ,it works but feels like its it max assist as draws around 450watts during PAS and no effort peddling (no throttle used) Also this may help someone ,my sw900 wouldn't connect Error10 I found the 2 data lines crossed ,reversed wires then connect ok

[@RollyPetz]

Thank a lot for the info Sir Tiggy.

[@tiggy2756]

@@RollyPetz You any ideas on pedal assist ? it makes no difference on settings and can't turn it off with sw900

[@RollyPetz]

@@tiggy2756 Sir what do you mean by turning off?

[@tiggy2756]

@@RollyPetz If I set the pedal assist to any setting even zero I get max pedal assist all the time

[@RollyPetz]

@@tiggy2756 is it at P11? try also decreasing the P14 and test it out again. Tnx.

[@kamenborisov7377]

hello, can the video be translated into Bulgarian?

[@RollyPetz]

Good day Sir Kamen. I don't know of such a language to speak to.

[@ultra6931]

How to solve sw900 error code 10 pls..

[@RollyPetz]

Good day Sir, this usually happens if there is a loss cable connection between the controller and lcd screen. Try unplugging the main connector cable and check for any corrosion. Then re-insert back. If not then you can try these videos instead. kzbin.info?search_query=error+10+sw900 Thanks.

[@vd1261]

Hello. The thing I wanted to see was the diameter of the wheel. But you didn't show anything.

[@RollyPetz]

Hi Sir, for the diameter of the wheel is on config P06 which is the wheel size, in this case for mine its 27.5. Thanks.

[@vd1261]

@@RollyPetz Thank you for your reply. But I wanted to know that other diameters can be set. For example is it possible to put 11-inch?

[@RollyPetz]

@@vd1261 good day Sir, yes it can be set to the desired wheel size or diameter to what your are using.

[@vd1261]

@@RollyPetz Thank you very much. Very kind

[@RollyPetz]

@@vd1261 good day Sir, I'm glad this was helpful. Stay safe.

[@paulgriffin1967]

Err08 throttle doesn't work anyone know how to fix

[@RollyPetz]

Good day Sir Paul, kindly check your setup config P10-2 for PAS and Throttle and check P9-1 set to non zero start. Physically check the cable and connectors for continuity testing. Hope this helps. Thanks.

[@paulgriffin1967]

Thanks 👍

[@RollyPetz]

@@paulgriffin1967 you're welcome Sir Paul.

[@raymondwong6680]

HELLO, DIY Petz do you know what the problem is (error)

[@RollyPetz]

Hi Sir Raymond, what is the error code? Tnx.

[@raymondwong6680]

@@RollyPetz When I turn on the power, an error is displayed on the lower night screen.

[@raymondwong6680]

error 06

[@RollyPetz]

@@raymondwong6680 Sir, Error 06, states that your battery is under voltage. I haven't encountered that error yet. Maybe you can disconnect your battery and test for the voltage output from the battery itself. Tnx. Also, you might check on the SW900 configuration on P03 if that is the correct voltage setting.

[@raymondwong6680]

@@RollyPetz thank you so much😊👍

[@monkeyhaters9258]

Kit comes with no instructions bought it separately have A extra blue wire I have no idea where it goes..???

[@RollyPetz]

Good morning. I think the extra blue cable is the "hall sensor" it is the one that limits the motor to run at certain speed. You can leave it unconnected. Thanks.

[@monkeyhaters9258]

@@RollyPetz The problem is 5 wires Are part of one connection (Including the blue wire) plus 2 separate wires Which are Brown and white, no blue wire coming out of the controller And only 6 wires, Where the LCD has 7?

[@RollyPetz]

@@monkeyhaters9258 The important thing to wire/connect to are the battery connectors, LCD display, brake sensor(optional), motor connectors, throttle (optional). Can you send the controller model here and we'll try to look for it. Tnx.

[@monkeyhaters9258]

@@RollyPetz sw900

[@RollyPetz]

@@monkeyhaters9258 good day, what is the controller model? usually, LCD and controller have a male and female pin connector to connect, and an 5 pin connector to the controller side.

[@trailguy]

If I say my tire is 29 inches but is actually 26 inches, will I go faster?

[@RollyPetz]

Hi Sir Mason, actually you speed will still be the same but your speed on your odometer will a slight faster because you increased the size in your controller configuration, but it would be a nice thing to experiment on. I'll do it on next ride and provide you feedback once done. Thank you for question Sir Mason.

[@trailguy]

@@RollyPetz thank you for the reply. Do you happen to know if displays include the temperature of the motor? I know some do but I’m not sure if it’s common. I’m getting an ebc model c, by the way.

[@RollyPetz]

@@trailguy Good afternoon sir, sorry for the late reply. I've doing some research but could not find display related to motor temperature with this type of display even on the error codes. Maybe that will be available depending on the controller since it's one handling all alarms and status. Thanks.

[@halinahaimy9907]

Complimenti sir per l'ottimo video e spiegazione top. Ho questo display, mi può spiegare come si fa a resettare error 7? Ho trovato il problema, ora voglio solo cancellare error 7 dal display, ma non so come farlo. Mi aiuti se può

[@RollyPetz]

Good day for error on P07, kindly check the magnet mounting if it's 1mm closer to the sensor, also check if the sensor cable is mounted and fixed tightly. thanks to google translate I was able to read your comment.

[@pasqualinomunzone1492]

Ciao🤓🪁grazie

[@RollyPetz]

You're welcome sir and thanks.

[@Visvangmeneer]

Kilometers per liter bro i want what youre smoking

[@RollyPetz]

Sorry..

[@1peanut]

how to reset the Odometer ? or reset the trip meter ?

[@RollyPetz]

Good day Sir, to reset the odometer you can navigate via the configuration settings and go to P16, then hold and press the "UP" key for 5 seconds to reset. The trip meter resets every time the ebike is power off. Thanks Sir..

[@1peanut]

My bike says i went 1 mile but only went 3/4 of mile. I have the proper wheel size at 26 inch. how do i correct this with number 7. do i add more or less magnet to fix ?

[@RollyPetz]

Good day Sir. Are you using fat tires on your bike or having sa bigger tires? You might want to play around "P06" Wheel size configuration, you may use 27 or 27.5 instead. For "P07", yes you can experiment on that by making it higher. I haven't change mine yet...I'll check it out. Thanks Sir..

[@kingoftheput]

Which cable from controller I use for communication to display?

[@ps55live81]

Probleme my sw900 shen turn off , the gaz and pas work. Someone know the probleme

[@RollyPetz]

Good day Sir, you may want to check sa connection going to the lcd screen if it's OK. Or else try to check sa dim settings of the controller.

[@turkishmurphy]

Thank you kindly sir you video just fixed my setup

[@RollyPetz]

You're welcome Sir, I'm glad this was helpful. Stay safe.

[@a78011a]

Sir how i fix Error 006, i change battery, i change controer , nott error one time butt engine not work?

[@RollyPetz]

Hi Sir good day. Have you check the configuration on P03 if its selected to the correct voltage? If this is not set to the correct voltage rating, chances are your motor wouldn't run. I supposed you've already check the battery voltage using a multimeter. Thanks.

[@a78011a]

@@RollyPetz Thanks for amswer Sir! I test controller again with avo-meter and battery, two series of battery not working, damaged i think, problem resolved. now bicyce working good. Thanks!

[@RollyPetz]

@@a78011a Glad to hear its up and running Sir...Stay safe and ride safe.

[@เทวาไชยถา-ช2ณ]

Error 10 not work help me

[@RollyPetz]

Good day Sir, this usually happens if there is a loss cable between the controller and lcd screen. Try unplugging the main connector cable and check for any corrosion. Then re-insert back. If not then you can try these videos instead. kzbin.info?search_query=error+10+sw900 Thanks.

[@เทวาไชยถา-ช2ณ]

@@RollyPetz Ok Thanks

[@billmarsh1971]

Thanks very much for this. I have a D961 lcd display which has an identical data layout and program menu. I may need to investigate P07 further, but otherwise all programming parameters correspond.

[@RollyPetz]

Good day Sir Paul. Based on my readings, P07 Speed measuring magnet. Range: 1-100 "This is 47 for direct drive motors and 86 for geared ones. " This is quite tricky though.

[@peter130476]

I set the speed measuring magnets p07 using a GPS app that shows me the exact speed at which I am riding. It's around 46 for my bike.

[@lisaskalko1414]

I have an issue with my display that i just cant figure out. hoping someone here may know how to fix. the speed limit does not work and cant figure out why when all other settings work. the other problem i have is i set the tyre size correctly and the odometer was correct but the speedometer was around 10 kmh out. reading 40kmh when only going 30kmh. so i changed p07 and got the speedometer right but now my odometer is completly out. did 7.6km but the trip said 4.3km. is there any way to make both accurate? i can change p07 back so the odometer is correct but then the speedometer is wrong. i can change the tyre size to around 16inch to make the speedometer right but i dont think the odometer would be correct.

[@RollyPetz]

Good day. Here are my answers based on my test. -> the speed limit does not work- this only works on throttle and not on pedal assist -> offset mileage and odometer - try to play around the tire size ex. 20", try to put it @ 21" then adjust P07 just a little bit. Thanks.