NIU N1 e-scooter RS485 issue

General Discussion about large electric scooters and motorcycles and other things with no pedals.
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starmoral
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NIU N1 e-scooter RS485 issue

Post by starmoral » Oct 23, 2017 10:41 am

Control module does not function. Have error code 00 on display. Is anybody there with similar issue? Or does someone can suggest is it possible to skip this module in order to make speed controller works, i will attach schematics. For now i can only drive up to 20km/h, like it is lock on 1st speed mode.
Attachments
schematic 1804.jpg
central module.jpg
Last edited by starmoral on Oct 23, 2017 12:47 pm, edited 1 time in total.

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Mapyx
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Re: NIU N1 e-scooter Control module issue

Post by Mapyx » Oct 23, 2017 10:50 am

Check the central
controller connection circuit
for looseness

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starmoral
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Re: NIU N1 e-scooter Control module issue

Post by starmoral » Oct 23, 2017 12:20 pm

i did several times but no result.

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Re: NIU N1 e-scooter Control module issue

Post by Mapyx » Oct 23, 2017 3:40 pm

starmoral wrote:i did several times but no result.
Niu N1 is new to the market, should not it still be in warranty?

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Re: NIU N1 e-scooter RS485 issue

Post by starmoral » Oct 24, 2017 1:38 am

no, i bought it in China 2015.,and exported to Europe. So by doing that i broke warranty. Rules and regulations :lol:

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Re: NIU N1 e-scooter RS485 issue

Post by fechter » Oct 24, 2017 8:42 am

Was it working before?

It would be good to know what that error code means. Is there any documentation or somebody to ask?
Make sure the 3-speed switch is working. You might try unplugging it, which would put you in speed 2.
"One test is worth a thousand opinions"

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starmoral
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Re: NIU N1 e-scooter RS485 issue

Post by starmoral » Oct 24, 2017 11:14 am

Of course was working before.,but i unplugged unit because inside is GPS with SIM card which i wanted to change, and when i was putting it back i forgot to cut the power so that is how error came. There is Users manual, pictures i sent is from that pdf. I can attach link if you like to see complete. Do you mean unplugging speed switch only ,where hand control is ?


http://www.niuscooters.nl/N1S-Service-M ... h-V1-0.pdf

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Re: NIU N1 e-scooter RS485 issue

Post by fechter » Oct 24, 2017 1:30 pm

starmoral wrote:Of course was working before.,but i unplugged unit because inside is GPS with SIM card which i wanted to change, and when i was putting it back i forgot to cut the power so that is how error came. There is Users manual, pictures i sent is from that pdf. I can attach link if you like to see complete. Do you mean unplugging speed switch only ,where hand control is ?


http://www.niuscooters.nl/N1S-Service-M ... h-V1-0.pdf
Yes, unplug the speed switch anywhere between the switch and the controller. Worth a try, but it seems more likely the display unit failed. It may be possible to get a new display unit.
"One test is worth a thousand opinions"

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starmoral
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Re: NIU N1 e-scooter RS485 issue

Post by starmoral » Oct 26, 2017 12:53 am

did not work. I found out that one of Control module resistor is burned, so now i know reason. But question is what can i use instead of this module to make it work again??? Its 60v system not so easy to find proper fit, anyone have any recommendation ?
Attachments
module burned.jpg

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Re: NIU N1 e-scooter RS485 issue

Post by fechter » Oct 26, 2017 8:05 am

Is that in the display?

The part is labeled U6, so I would assume it used to be an integrated circuit or transistor. It may have fried due to a short in something downstream. Maybe not.

With most of these systems, the display unit switches the power to the controller logic, so there may be a way to make it power up without the display, but you'd be stuck with whatever the default settings are when you turn it on. Changing most of the settings requires a serial data command from the display to the controller.

In looking at the picture closely, it seems like the fried part was switching the two end wires on P5 (follow the traces). I'd guess this is what switches the logic power to the controller. It may be possible to use a mechanical switch to turn on the controller by connecting the two end wires. Of course this could also result in a big spark and some smoke if something downstream is shorted. You might try shorting the two end wires to see if the thing powers up.
"One test is worth a thousand opinions"

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