Controler

[denis]

Hi all I have just been given a sakura e bike quite old i think. It does nothing at all . It has new batteries and i think the controll unit has blown as the last owner said it just stoped on them . . The controler is a ANANDA..3615DLC-37CO.. There is power to it but nothing at all seems to come out any wires. Checked this with a multimeter as best i can .. does anyone know if this part is still available from anywhere. or any advice . . I know a little about wiring but not experianced with these things .. Thanks Denis

 

[Nealh]

The only chance of getting hold of an Ananda is by looking on ebay, occasionally one may appear.
Generally we recommend to buy a more readily available brand and KT are the most sellable items for retro fitting. Many vendors sell them mainly from China or one can buy from UK sources at a much larger mark up. As with any up grade some minor wiring may be needed usually the battery connection or PAS. With any controller change buy everything needed from the same vendor and then only the battery connection needs sorting out, the peripherals like throttle, PAS, lcd and speed sensor (if needed) saves a lot of messing about.

Before buying anything though, one needs to offer up a pic of the hub motor cable connector. Which form the controller pic is 3 x bullet phases and possibly a 5 x sensor wires connector.

Direct from China a new controller kit will be about £100 for the very good KT/Kuenteng brand, one can of course by other much cheaper China brands but they don't have the nice user control that the KT's give.

 

[Nealh]

A quick easy manual assessment to rule out a controller or motor phase issue.

Disconnect the battery leave the controller to hub motor connected rotate the wheel by hand fwd, if there is severe stiff resistance then there is a phase short.
Disconnect the hub /controller connection and try the wheel again. If it frees up then the controller is shorted, If it doesn't the motor cable is shorted.
Before deciding on the next options, test the controller to see if indeed it is shot or if the hub motor is at fault.

A more techinical specific test with a meter.

For the controller test the phase/mosfets for a short.
BlownMosfets.cdr (ebikes.ca)

If the hub motor has 5 or 6 small sensor wires as well carry out the motor hall test as well.
HallSensorTesting.cdr (ebikes.ca)

 

[Andy-Mat]

Hi all I have just been given a sakura e bike quite old i think. It does nothing at all . It has new batteries and i think the controll unit has blown as the last owner said it just stoped on them . . The controler is a ANANDA..3615DLC-37CO.. There is power to it but nothing at all seems to come out any wires. Checked this with a multimeter as best i can .. does anyone know if this part is still available from anywhere. or any advice . . I know a little about wiring but not experianced with these things .. Thanks DenisView attachment 45711View attachment 45711View attachment 45712

The advice already given is good, but first you need to fully and accurately identify (on older models extremely important!) EXACTLY what type of motor you have and possibly what type of PAS sensor, or equivalent (if fitted), before you buy a different type of controller.
Having either a "brushed" or "brush-less" motor makes a significant difference. What voltage is needed also....
Hopefully, someone here already knows exactly what you have and can let you know and also possibly comment on the practicality as well.....
If the bike is still in otherwise good mechanical condition, it may of course be possible to fit a new motor (possibly already built onto a wheel of the right size), which can be bought on ebay together with the correct controller and PAS sensor for relatively little money.
Hopefully someone here can point you towards a practical model/version......
Also a new battery of the correct type of course.
If you yourself are not technically "au fait" with such work, maybe you have a friendly relative/colleague/friend, to support you fully....as using us "remotely" could easily cause you unexpected problems due to you possibly having the wrong background and lack of knowledge, so do not do this "lightly!", as it it will "lighten" your pocket unnecessarily and very rapidly!
Good knowledge is 110% necessary before forking out one Penny!
E-biking, to do it economically, does need either really good electrical knowledge, or very deep pockets!
ACTUALLY HAVING BOTH OF THOSE WOULD OF COURSE BE BEST!!
Proceed VERY cautiously.
Best wishes
regards
Andy

 

[Nealh]

He has a brushless motor as it can be seen via the pics, the controller is three phase.
Not 100% sure but also looks like a sensored motor as I see a 5 wire connector block( #1) which looks consistent with the DJ7061 series used for Hall wires.

 

[denis]

Thank you for your very helpfull replies . Yes i think its a bushless type. i think the bike is a 2012 ish model but dont have a clue what model . I can tell you that when it stoped everything stoped .. there are no lights , horn. flashers or anything at the moment completly dead . The batteries are showing a healthy 37.6 volt and have not gone down at all over the last 2/3 days . also none of the fuses have blown on either the battery pack or the charge socket .. Thanks again

 

[denis]

Some snap shots

 

[wheeliepete]

Do you have battery voltage on the red/black wires on the connector marked 2,Z or N, can't tell which, with the bike turned on, assuming it has some sort of on/off switch?

 

[Nealh]

One will have to start at basics and square one taking one step at a time, some wire tracing and possibly some wring continuation checks.
Which one is a battery supply #3 ?
With this connected ensure that a voltage reading is registered going in to the controller via the said connector, then one needs to confirm voltage exiting.

As Pete has said one should see battery voltage on the thick Black & Red on #2.
Once this is confirmed one has to trace the #2 wiring to the next juncture, which likely may be a switch or a fuse box.

 

[Bikes4two]

....... Good knowledge is 110% necessary before forking out one Penny!
E-biking, to do it economically, does need either really good electrical knowledge, or very deep pockets!

I couldn't agree more and thanks to this forum, my ebike knowledge grows every day.