replacing Ananda MC5-B0 controller and display

[grinner331]

Hi, new member, new e-bike owner here so please be gentle! I hoping someone would be kind enough to give me some advice?

I have, for my sins, purchased a broken Schiano - E Fully MTB. Running on a Ananda Charge controller: MC5 B0 36v
And rear motor: МС5-МЗС 1050300001which runs on the Ananda D13 display. That seems to be my first error, my second now appears to that I have purchased new battery, new replacement controller, and new display (which was missing at purchase, snapped off missing and leaving exposed bare wires). So as you can see I’ve got myself int bit of a pickle,

the symptoms of the bike are it will switch on, but only briefly, and shows a flat battery, with the original and new battery the symptoms are the same, in fact they are the same with all the original and new components I have purchased. I have sought various advice with varying responses. The end result always is the same, it shuts down after briefly coming on approx 1 sec after pressing the power button, this is with as many combinations of new and old parts as I can think to try, which leaves my stumped!



I am certain all the new and old components are like for like

what I think Id really like to do it the remove all the electronics back to the motor and start a fresh, if that makes sense? And install the KT controller and display.

I have no idea if this is even possible?

All the above posts seem very knowledgeable on this specific motor / controller display set up, and I am hoping there might be someone out there who’s either willing to help? Or recommend somewhere professional that would be able to repair the existing or undertake the above strip out and refit. I travel far and wide across England for work so can pretty much get the bike to anywhere!

another option would be to use the frame as a donor and replace EVERYTHING? Again is this viable?

Any help or suggestions or even if I just need to bin it, would be much appreciated.

thanks,

Alex

 

[saneagle]

If the LCD flashes on for about 1 second when you press the power button, it's because it's getting it's power from capacitors, not the battery. In other words, the battery is shutting off as soon as you attempt to take power from it or it'salready shut off..

There are many reasons why that could be happening, but one reason could be that you've misinterpreted the battery switch, which could be on when you think it's off and vice versa.

If it's not that, you have to find the reason for the battery to shut down or lose connection. Typically:

• Bad battery connector
• Faulty battery switch
• Short in the LCD cable
• Blown MOSFET in the controller

Where did you get the replacement controller and LCD from, as Ananda are normally OEM only.

The first test you should do is put a voltmeter on the battery connection to the controller and check what happens to the voltage before and after you attempt to switch on the LCD.

 

[grinner331]

If the LCD flashes on for about 1 second when you press the power button, it's because it's getting it's power from capacitors, not the battery. In other words, the battery is shutting off as soon as you attempt to take power from it or it'salready shut off..

There are many reasons why that could be happening, but one reason could be that you've misinterpreted the battery switch, which could be on when you think it's off and vice versa.

If it's not that, you have to find the reason for the battery to shut down or lose connection. Typically:

• Bad battery connector
• Faulty battery switch
• Short in the LCD cable
• Blown MOSFET in the controller

Where did you get the replacement controller and LCD from, as Ananda are normally OEM only.

The first test you should do is put a voltmeter on the battery connection to the controller and check what happens to the voltage before and after you attempt to switch on the LCD.

Hi thanks so much for the reply,
Could you elaborate on how to check the battery switch? Is this a physical switch or in a wiring sense? There is no ‘Button’ so to speak of on the bike and the key appears to be a basic locking mechanism not related to power, but to merely hold the battery in position? Perhaps this was not the case?

I forgot to mention in my OP the bike is brand new, has never been ridden. Which is why I went down the manufacturer like for like parts. Thinking the cables had touched and caused a short in the controller unit. So battery connectors all look pristine,

funny story how I am sourcing parts, my Father lives in Spain and can buy the D13 controller on Amazon.es! Then ship to me, problem solved I thought……. But no, so I managed to find a senior engineers email at Ananda who I have been emailing since I purchased the bike last autumn, he must have the patience of a saint lol, and together breaking through the language barriers tried various solutions, culminating in Frank shipping a new controller as the suggested solution, that arrived last week, which had no effect. He promised he was sending a new cable to, but pulled the rug on the cable at the very last second, some BS story, all a bit weird TBH.

So perhaps the wiring loom is the culprit I hadn’t considered the capacitors were making it come on.

Are these cables plug and play? Can you just buy the 3/1 cables? I couldn’t find any easily, but again wasn’t sure on compatibility, besides I’d pinned all my hopes and dreams on Frank coming good, but he let me down.

Thanks

 

[saneagle]

Hi thanks so much for the reply,
Could you elaborate on how to check the battery switch? Is this a physical switch or in a wiring sense? There is no ‘Button’ so to speak of on the bike and the key appears to be a basic locking mechanism not related to power, but to merely hold the battery in position? Perhaps this was not the case?

I forgot to mention in my OP the bike is brand new, has never been ridden. Which is why I went down the manufacturer like for like parts. Thinking the cables had touched and caused a short in the controller unit. So battery connectors all look pristine,

funny story how I am sourcing parts, my Father lives in Spain and can buy the D13 controller on Amazon.es! Then ship to me, problem solved I thought……. But no, so I managed to find a senior engineers email at Ananda who I have been emailing since I purchased the bike last autumn, he must have the patience of a saint lol, and together breaking through the language barriers tried various solutions, culminating in Frank shipping a new controller as the suggested solution, that arrived last week, which had no effect. He promised he was sending a new cable to, but pulled the rug on the cable at the very last second, some BS story, all a bit weird TBH.

So perhaps the wiring loom is the culprit I hadn’t considered the capacitors were making it come on.

Are these cables plug and play? Can you just buy the 3/1 cables? I couldn’t find any easily, but again wasn’t sure on compatibility, besides I’d pinned all my hopes and dreams on Frank coming good, but he let me down.

Thanks

I'm speaking generally about how ebikes work. I have never had a bike like yours in front of me, so I can't be specific. Some of those batteries have a tiny power switch where the charge-level indicators are. The switch not only lights the indicator LEDs, but also powers on the battery. If yours doesn't work like that, the first step is to remove the battery and measure the voltage between the two pins with a voltmeter.

 

[grinner331]

I'm speaking generally about how ebikes work. I have never had a bike like yours in front of me, so I can't be specific. Some of those batteries have a tiny power switch where the charge-level indicators are. The switch not only lights the indicator LEDs, but also powers on the battery. If yours doesn't work like that, the first step is to remove the battery and measure the voltage between the two pins with a voltmeter.

hi, thanks again it’s really great to
Know people out there are willing to help!

I have it with an engineer at the moment but he cannot get any further then me, so on that basis I am ruling out simple ‘user error’ issues . At this point I feel I’m way out of my depth and losing the will, so looking really to get it in front of a an expert who knows their stuff. Or if someone said look if you plug this controller in with this display the motor is compatible and it’ll just work. Or “yeah I know a person who be able to get it right” and I can pass it over then that’s pretty much where I’m at now. I wish I had the knowledge and expertise, or indeed the time to sit and study the issues and learn how to put it right. im very technically minded but also impatient! My skill set in this area is basic in the end I’ve tried to get myself a cheap e bike, which seems to be backfiring on me and just wonder if there’s an easy get out so I can enjoy it, or bin it off and pay the same as everyone else, and accept it as a lesson hard learnt!
Thanks I really do appreciate the advice even if it’s not really what I wanted to hear

 

[saneagle]

hi, thanks again it’s really great to
Know people out there are willing to help!

I have it with an engineer at the moment but he cannot get any further then me, so on that basis I am ruling out simple ‘user error’ issues . At this point I feel I’m way out of my depth and losing the will, so looking really to get it in front of a an expert who knows their stuff. Or if someone said look if you plug this controller in with this display the motor is compatible and it’ll just work. Or “yeah I know a person who be able to get it right” and I can pass it over then that’s pretty much where I’m at now. I wish I had the knowledge and expertise, or indeed the time to sit and study the issues and learn how to put it right. im very technically minded but also impatient! My skill set in this area is basic in the end I’ve tried to get myself a cheap e bike, which seems to be backfiring on me and just wonder if there’s an easy get out so I can enjoy it, or bin it off and pay the same as everyone else, and accept it as a lesson hard learnt!
Thanks I really do appreciate the advice even if it’s not really what I wanted to hear

Ebikes are very simple when you understand how they work. You don't need any skillset or electronics experience. Every problem can be found with a few basic tests that anybody can do with a standard multimeter. You don't need any skill or experience.

To test the battery you get a multimeter (automatic if you want), stick the two probes in the two terminals and read the voltage. I cannot understand why you guys never want to do such simple things. Instead, we get your life story and every reason you want to avoid doing it, but that's up yo you. I help when requested. That's it.

M113 Digital Multimeter 1999 Counts Automatic AC/DC Votage Resistance Meter NCV | eBay UK

Model: M113. NCV induc3tion current: √. Resistance: 0-10M Ω. Line on/off detection beep prompt sound: Check whether the wire is on/off, connect the probe to both ends of the wire, and there is a beep sound to prove that the line is on/off; No beep indicates a broken line.

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[grinner331]

Hi,
Im Sorry im not hear to upset anyone or be lazy, if that’s how it comes across. I am worried that my knowledge is so basic that I don’t really understand the simplest of instructions! The battery is brand new so don’t not think this is an issue, and I’d have hope if it were, that the local engineer is capable of confirming this too. But I will of course test the voltage on both the original and new battery I have and let you know, if we assume the battery is OK, the controller is brand new and parts are difficult to obtain, then rather then diagnose an unfixable fault painfully slowly could there be a shop or expert or another solution (ie buy these components as replacements), to fix it and get my out and riding.
Wasn’t my intention to provide my life story, I just see so many of these posts with next to no information, and thee response is we need more info, I tried to get ahead of the curve. I’ll be more to the point going forward!

I’d happily buy a new controller display and whatever else if I knew it would make it work. Assuming of course this is not more expensive than just picking up a decent 2nd hand bike. I just need to know what parts would be needed.

Thanks
Alex