Nanjing far driver controllers

[DogDipstick]

Do you have a link...

Sure. Check this out. Lol. I am not sure quite what to think.

I've been talking with the person. Seems knowledgeable, when it comes to batteries, is no longer asking exuberant price for support. However, if you get to watch this video... Well you will see what I mean..... gets a little.. " contradictory to logic based on the definition of "assistance " from time to time. For a retailer. Imo. Idk. I guess the spam is just a product of retail sales.

Lol. Whatever though. I am just interested in high power reliable modern controllers. Who am I to judge.


You can search through the representative's posts here.

https://www.facebook.com/groups/electricmotorcyclebuilds/posts/2496399547164068/

 

[j bjork]

Thanks, so it was on "electric motorcycle builds".
I thought it was some dedicated fardriver page or something.
I saw he clamed in a post that qs motors bought their controllers from him :?

 

[GumbaLL]

hi all,
is there a standalone RPM display for Far Driver, other than the blue booth one? (dont want to turn on the app/ use bluetooth all the time)
Cant seem to find a display for e-motorbike to show RPM for that matter either ..
TX

 

[amberwolf]

hi all,
is there a standalone RPM display for Far Driver, other than the blue booth one? (dont want to turn on the app/ use bluetooth all the time)
Cant seem to find a display for e-motorbike to show RPM for that matter either ..
TX

RPM, or road speed?

If RPM, do you mean wheel RPM, motor RPM, etc?

There's various ways to get and display various data, once we know what you need to measure.

For curiosity: If RPM, why do you need that data? (meaning, what use is it to you?)

 

[ebike11]

Hi
Are any of you getting a throttle error often? My throttle works fine and it does work with the controller. But sometimes I will get 2 beeps and throttle error message. Then i must power up again or disconnect and connect the throttle

 

[Irling]

Does anyone have a 72490 controller? I bought it in China, the description said 330A battery current and 660A phase current. However, in the settings, I cannot specify a phase current greater than 490 (which is logical, given the name of the controller 72490)
Has anyone experienced this product? Why do they write 330A/660a in the description?

 

[amberwolf]

Did the description / specifications come from the manufacturer, or the seller? If seller, which one? (link to actual page would be helpful to avoid them, if this is the case).

Just to note: Sellers will often say anything they can get away with to sell more things, and sometimes excuse their behavior with statements on the ad like "specifications subject to change without notice" and the like. :/

 

[Irling]

Did the description / specifications come from the manufacturer, or the seller? If seller, which one? (link to actual page would be helpful to avoid them, if this is the case).

Just to note: Sellers will often say anything they can get away with to sell more things, and sometimes excuse their behavior with statements on the ad like "specifications subject to change without notice" and the like. :/

I bought the goods used, not directly from the seller. But when I studied the characteristics, many sources pointed to 660a. For example https://aliexpress.com/item/1005002247242962.html

 

[Irling]

ND84530

 

[dominik h]

Does anyone have a 72490 controller? I bought it in China, the description said 330A battery current and 660A phase current. However, in the settings, I cannot specify a phase current greater than 490 (which is logical, given the name of the controller 72490)
Has anyone experienced this product? Why do they write 330A/660a in the description?

660A is only usable for advertisement as it is the protection value and will instantly set an error error when this current is reached.

 

[Irling]

Does anyone have a 72490 controller? I bought it in China, the description said 330A battery current and 660A phase current. However, in the settings, I cannot specify a phase current greater than 490 (which is logical, given the name of the controller 72490)
Has anyone experienced this product? Why do they write 330A/660a in the description?

660A is only usable for advertisement as it is the protection value and will instantly set an error error when this current is reached.

I received a modified firmware for the 72490 controller, I will try to update in the next few days.

 

[SlowCo]

ND84530

Wow, that took some work digging it out.
Why did you do that and what are you planning to do with it?

 

[j bjork]

Thanks for the pictures :thumb:
So it is 135V fets in the 84V controllers, seems like a good margin.
I hope other people who know these things comment on the design :wink:

 

[liveforphysics]

The current path looks pretty nice, the heat path is FET drain tab through the PCBA to the aluminum heatsink, which seems like a high Rth drop potential, but they might heavily copper via the under drain tab area.

I like the MOSFET and its package, aside from thermal path, but its at least a path even if its higher Rth.

Thanks for the hard work of taking it apart to share with us!

 

[ebike11]

Thx for the pics!

 

[ebike11]

The current path looks pretty nice, the heat path is FET drain tab through the PCBA to the aluminum heatsink, which seems like a high Rth drop potential, but they might heavily copper via the under drain tab area.

I like the MOSFET and its package, aside from thermal path, but its at least a path even if its higher Rth.

Thanks for the hard work of taking it apart to share with us!

Hi how are you?
I was wondering if I could ask you something off topic. With a powerful fardriver is the need for a high powerful motor. However i see that all of the motors that can fit in the typical 155mm dropouts like Stealth bomber, EEB, vector etc., dont have the largest phase wires and there is a risk of melted phases fusing together. Other than adding thicker gauge to the phases outside of the motor near the axle, is there anything else that can be done? I have ferrofluid and heatsinks as well
Thanks!

 

[dominik h]

The current path looks pretty nice, the heat path is FET drain tab through the PCBA to the aluminum heatsink, which seems like a high Rth drop potential, but they might heavily copper via the under drain tab area.

I like the MOSFET and its package, aside from thermal path, but its at least a path even if its higher Rth.

Thanks for the hard work of taking it apart to share with us!

The thermal design looks the same way as in my Sabvoton SVMC72260

 

[AMP ADRENALINE]

I have a ND 721200B Far driver that is using an Encoder type sensor. NJD Y2915 to be specific.
The wiring harness is different from the Fardrivers I have seen here. I attached some photo's.
The wiring diagram is a little vague at best. I have been waiting for a response for the factory to
make a wiring diagram of the entire wiring harness but no response yet. We don't want to make
a wrong connection and burn up the controller.

So I have a couple questions to be sure, try to get this working sooner than later..
The contactor has a L- wire. What does this stand for? Contactors we use have a 12v coil and the two main contacts.
If we run the ignition wire to turn it on, that's 72vdc thru the contactor. Not sure that is right.

The throttle has it' s 5v/ signal out and it's own ground. Forward/ Reverse/ Low brake and High brake don't. I want to
assume these go thru a switch and then to Battery Ground. Is this the case? Some other controllers have a separate ground
for these type accessories. That for any help. FYI. This is going on a Custom Mid Motor setup not a Hub motor.

 

[rivvs]

I have a ND 721200B Far driver that is using an Encoder type sensor. NJD Y2915 to be specific.
The wiring harness is different from the Fardrivers I have seen here. I attached some photo's.
The wiring diagram is a little vague at best. I have been waiting for a response for the factory to
make a wiring diagram of the entire wiring harness but no response yet. We don't want to make
a wrong connection and burn up the controller.

So I have a couple questions to be sure, try to get this working sooner than later..
The contactor has a L- wire. What does this stand for? Contactors we use have a 12v coil and the two main contacts.
If we run the ignition wire to turn it on, that's 72vdc thru the contactor. Not sure that is right.

The throttle has it' s 5v/ signal out and it's own ground. Forward/ Reverse/ Low brake and High brake don't. I want to
assume these go thru a switch and then to Battery Ground. Is this the case? Some other controllers have a separate ground
for these type accessories. That for any help. FYI. This is going on a Custom Mid Motor setup not a Hub motor.

So the encoder version they just send a new sensor module for the moto?

 

[j bjork]

I have a ND 721200B Far driver that is using an Encoder type sensor. NJD Y2915 to be specific.

Interesting. I dont find the encoder, do you have a link and what signals are there?

What pins on the controller do the different contacts on your wirings connect to?
It would be interesting to compare to the standard version.

 

[TysonScott]

I have a ND 721200B Far driver that is using an Encoder type sensor. NJD Y2915 to be specific.
The wiring harness is different from the Fardrivers I have seen here. I attached some photo's.
The wiring diagram is a little vague at best. I have been waiting for a response for the factory to
make a wiring diagram of the entire wiring harness but no response yet. We don't want to make
a wrong connection and burn up the controller.

So I have a couple questions to be sure, try to get this working sooner than later..
The contactor has a L- wire. What does this stand for? Contactors we use have a 12v coil and the two main contacts.
If we run the ignition wire to turn it on, that's 72vdc thru the contactor. Not sure that is right.

The throttle has it' s 5v/ signal out and it's own ground. Forward/ Reverse/ Low brake and High brake don't. I want to
assume these go thru a switch and then to Battery Ground. Is this the case? Some other controllers have a separate ground
for these type accessories. That for any help. FYI. This is going on a Custom Mid Motor setup not a Hub motor.

im trying to buy a 841800 encoder version, does it come with the encoder to use in the motor, or do you have to pay extra for it?
also is there any chance i wouldnt need to change it if im using a zero 75-7?

 

[AMP ADRENALINE]

The Encoder was purchased separately. It took weeks to understand them and get the correct one. At first I was
trying to explain to them I wanted to use the encoder from the ME1115 motors. But for some reason they insisted I
use their encoder. At some point I will try it anyway, just because it's a better quality encoder.

The wiring pins are posted in the photo's. It is incomplete and why I was posting for some help on the forward reverse and
other wiring. Fortunately the encoder wiring is already set up. Just need to plug and go with that set of wires.

Sorry but I don't know any thing about the Zero motors. The sensor uses a small magnetic pin to pick up the rotation.
What is on the Zero?

 

[AMP ADRENALINE]

Here is a sheet on the Encoder. Mine did not come with a temperature sensor in it, but I think they
do have one with that option as well. Next time I will get it with it. Not sure why it is not automatically
added. Hope this helps someone.

 

[j bjork]

The wiring pins are posted in the photo's. It is incomplete and why I was posting for some help on the forward reverse and
other wiring. Fortunately the encoder wiring is already set up. Just need to plug and go with that set of wires.

I can only see what is what in the small plugs on the photos, not what pins they lead to on the controller.

 

[Bobby.T]

The wiring pins are posted in the photo's. It is incomplete and why I was posting for some help on the forward reverse and
other wiring. Fortunately the encoder wiring is already set up. Just need to plug and go with that set of wires.

I can only see what is what in the small plugs on the photos, not what pins they lead to on the controller.

What is the encoder for? is it a sensor board for mid drive motors?