Bafang Ultra G510 - error code 11 & burnt controller

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Wald   100 µW

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Bafang Ultra G510 - error code 11 & burnt controller

Post by Wald » Mar 18 2020 4:25am

Hello my name is "Wald"
I'm from germany, so if my english is sometimes a bit clumsy i apologise in advance.

Well my problem is that my G510 is giving me the error code 11:

Image

So i took the motor apart and found this on the controller board:

Image

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Front side:
Image

I contacted www.cnebikes.com where i bought it over a year ago but i doubt that they are going to help me.


Does someone know what has been burnt away on the controller??
And can i buy a spare part to replace it?
Last edited by Wald on Mar 19 2020 2:49am, edited 1 time in total.

Tom   100 W

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Re: Bafang Ultra G510 - error code 11

Post by Tom » Mar 18 2020 8:23pm

No idea but worst case perhaps you could contact Exess to see if they might sell you an upgraded aftermarket controller? I believe you will have to ship your motor to them (requires individual tuning). There are many advantages to the aftermarket controller in terms of efficiency and power delivery (not just additional power):

https://www.exess-bikes.de/news/ab-sofo ... controller

It's the same controller that Watt Wagons will be offering. You can read some of the benefits here:

https://wattwagons.com/blogs/news/archon-x1-controller

Wald   100 µW

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Re: Bafang Ultra G510 - error code 11

Post by Wald » Mar 19 2020 2:48am

I have already contacted Excess bikes and now waiting for an answer. But 390€ is not really cheap.

Is there perhaps someone who did upgrade his controller and is willing to check what is originally soldered on that specific spot?

Tom   100 W

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Tom » Mar 19 2020 3:47am

Perhaps Excess (or Simon) can put you in touch with a customer near you that replaced their controller and is willing to part with it. The original looks packaged up nicely.

https://youtu.be/GjqsNET7xek?t=387

Wald   100 µW

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Wald » Mar 19 2020 5:00pm

Just got an email from Excess/ Innotrace: 390€ for the controller + 39€ for installing and calibrating + 7,90€ for shipping. :?

Tom   100 W

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Tom » Mar 19 2020 9:12pm

Personally if I had an Ultra I would jump at the opportunity to ship you my motor, let you keep my controller, if you would ship the motor to Exess for replacement and send it back to me. :) But I will be waiting another month for my Ultra bike to arrive from Frey. There is no option here in the US to get the upgraded controller unless you buy it with motor.

If you need just the controller replaced I have seen them on ebay (perhaps a user that replaced theirs with an Exess controller).

https://picclick.de/Bafang-Ultra-G51010 ... 34686.html

If cnebkes can't ship you a replacement controller it seems you can purchase the controller separately on alibaba or this US site (surprising as I don't believe they sell the ultra motor):

https://www.alibaba.com/product-detail/ ... 54742.html

https://california-ebike.com/shop/bafan ... ontroller/

Good luck!

Wald   100 µW

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Wald » Mar 20 2020 5:24pm

Thanks for the links Tom,
that strengthened my decision to go for the Excess/ Innotrace controller. Because buying the original one plus shipping to germany and adding taxes would proberly cost me around 200€.

The Excess controller is costing me now 447€. That's why i've send my motor to Innotrace today.
They told me it would take 5 working days to put the new controller in, calibrate and test it. So i should get it back after next week.

Wald   100 µW

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Wald » Mar 26 2020 2:16pm

Innotrace contacted me on tuesday and said that they won't upgrade my motor, because the built in temp sensor is causing a short circuit with the motor winding. So the problem i had with the original controller will likely occur with the new controller as well.
And they don't want to put a new sensor in because it will not read the temperatur inside the motorwinding, therefore the readings will not be accurate enough.

I don't know what to do?!

Maybe go for a phaserunner or buy a new motor?

Tom   100 W

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Tom » Mar 26 2020 9:02pm

Sorry to hear! Any chance your motor is still under warranty? Seems cnebikes might warranty motors for 2 years:

https://www.scribd.com/document/3449944 ... f-Cnebikes

https://cnebikes.en.made-in-china.com/p ... -Bike.html

Wald   100 µW

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Wald » Mar 27 2020 8:05am

I have already contacted CNEbikes but they didn't answer.

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Daxxie   10 W

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Daxxie » Mar 27 2020 9:41pm

Wald wrote:
Mar 26 2020 2:16pm
Maybe go for a phaserunner or buy a new motor?
I love my G510 with the Phaserunner. +3000W without a problem.
Does yours have the Hall sensors?

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fishingkris   1 µW

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by fishingkris » Mar 27 2020 9:50pm

Wald: Did you get an answer from CNEbikes yet?
Regards,
Kristian //

Wald   100 µW

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Wald » Mar 29 2020 3:59am

Daxxie wrote:
Mar 27 2020 9:41pm

I love my G510 with the Phaserunner. +3000W without a problem.
Does yours have the Hall sensors?

Image
No it doesn't. Is it still possible to use the phaserunner?
I don't want to make a moped out off my bike by using only the thumb throttle!

@ Daxxie
Except from the pure power, can you still ride your bike like a "normal" bicycle??

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fishingkris wrote:
Mar 27 2020 9:50pm
Wald: Did you get an answer from CNEbikes yet?
Yes they finally answered and told me that i'm two months out of warranty and i apparently need a new controller! (after i showed them the burnt controller) :roll:
So i asked them what it would cost... waiting for an answer.

Update Monday 30.03: CNEbike just told me that the controller would cost 105 USD and shipping would be 45 USD with a delivery time of about 35 days.

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Does someone know what kind of thermistor Bafang is using in the G510?
The guys from Innotrace do not know that! But if i maybe could replace it by myself, they will be willing to put in the Excess controller. (probably without warranty).

Wald   100 µW

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Wald » Apr 02 2020 2:07am

Good news!

Innotrace called me yesterday and told me that they are now able to repair the motor (for additional 80€).
My guess is that they somehow took the stator out and checked the thermistor or replaced it?!

I should get the motor back early next week.

Tom   100 W

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Re: Bafang Ultra G510 - error code 11 & burnt controller

Post by Tom » Apr 02 2020 2:20am

Congrats! Be sure to let us know how you like the new controller.

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