Hubmotor works only in learning mode, Throttle changes the turning direction and more!

[Farshad68]

Hi

I’ve been reading about my issue with ebike controller in past few days and tried everything I could find (different settings through screen, changing PAS wires, using external 3.5v battery between ground and signal wires of throttle etc.) This is a Chinese (brainpower, Aliexpress, ebay ..) ebike controller 24/36v, max current 13Amp as the picture shows which came with S866 LCD. I’m sure about my wire connections as I checked them almost hundred times. My battery pack is 7S6P Li-Ion 18650 cells 15.6Amp 25.2v (fully charged 29.4v). Controller is 24-36v so I suppose it can be anything in between and not necessarily 24 or 36v, right?! Here are my problems;

• Hubmotor works only in learning mode and when “identification wires” are shorted/connected.
• Throttle changes the turning direction of the motor
• Through LCD setting I can change the voltage from 36v (default) to 24 but then the “walking mode” is like half throttle and just by changing that motor rpm goes way up!

Many thanks in advance!

 

[ak136]

Have you checked that all three hall sensors are working properly?
Once I had troubles using non same brand motor and controller, wasted alot of time trying to find the working combination of halls and phase wires, only to later find one of my hall sensors was dead

 

[Farshad68]

Have you checked that all three hall sensors are working properly?
Once I had troubles using non same brand motor and controller, wasted alot of time trying to find the working combination of halls and phase wires, only to later find one of my hall sensors was dead

three phases you mean? yes I'm sure they work.

 

[ak136]

three phases you mean? yes I'm sure they work.

No, hall sensor 5 wires, you have it in your picture

 

[E-HP]

My battery pack is 7S6P Li-Ion 18650 cells 15.6Amp 25.2v (fully charged 29.4v). Controller is 24-36v so I suppose it can be anything in between and not necessarily 24 or 36v, right?! Here are my problems;

No, it should work with either 24v or 36v (nominal) batteries. The low voltage cutoff will be set accordingly, based on whether a 24v or 36v battery is used.;

• Hubmotor works only in learning mode and when “identification wires” are shorted/connected.
• Throttle changes the turning direction of the motor
• Through LCD setting I can change the voltage from 36v (default) to 24 but then the “walking mode” is like half throttle and just by changing that motor rpm goes way up!

The learning modes work differently on different controllers. For some, disconnecting and reconnecting the wires switches motor direction, while others do so by blipping the throttle.
Learning mode is a sensorless operation, so if the motor doesn’t spin after running it, as ak136 mentioned, could be due to bad hall sensors.
The lcd should be set to 24v for a 7s battery

 

[Farshad68]

No, it should work with either 24v or 36v (nominal) batteries. The low voltage cutoff will be set accordingly, based on whether a 24v or 36v battery is used.;

The learning modes work differently on different controllers. For some, disconnecting and reconnecting the wires switches motor direction, while others do so by blipping the throttle.
Learning mode is a sensorless operation, so if the motor doesn’t spin after running it, as ak136 mentioned, could be due to bad hall sensors.
The lcd should be set to 24v for a 7s battery

Thx for respose. In my case disconneting and reconnecting learning wires and throttle both chage the direction of the motor. Shouldn't the motor work even if the 5 hall sensors are not even connected?!
I set the voltage to 24v and immediately the motor turns 2-3 times faster which I have no explanation for.

 

[Farshad68]

I was hoping for more help! The reason I've started this is because I realised "amberwolf" knows a lot about ebike controllers. I even messaged him directly but unfortunately still no reaction.

 

[E-HP]

I was hoping for more help! The reason I've started this is because I realised "amberwolf" knows a lot about ebike controllers. I even messaged him directly but unfortunately still no reaction.

Did you also notice that he always encourages people to resolve their issues on the forum and not through PM so that people in the future with the same issue will also benefit from his advice? Doing so is actually how You contribute to the forum.

Post in thread 'Please ask questions on the forum instead of PMs'
Please ask questions on the forum instead of PMs

 

[stancecoke]

I was hoping for more help!

Have you checked the parameters P9 and P10 in the display settings? They have be be set properly, if the throttle should drive the motor without a PAS signal or an initial manual kick.

https://www.planetenumerique.com/IMG/pdf/s866_lcd-2019jun6v7.pdf

regards
stancecoke

 

[Farshad68]

Did you also notice that he always encourages people to resolve their issues on the forum and not through PM so that people in the future with the same issue will also benefit from his advice? Doing so is actually how You contribute to the forum.

Post in thread 'Please ask questions on the forum instead of PMs'
Please ask questions on the forum instead of PMs

I didn't but I've searched not only on this forum but also many others on internet as well and (as written in my first message) already tried all of them! If my problem was solved here on the forum it wouldn't ben needed to PM him.

 

[Farshad68]

Have you checked the parameters P9 and P10 in the display settings? They have be be set properly, if the throttle should drive the motor without a PAS signal or an initial manual kick.

https://www.planetenumerique.com/IMG/pdf/s866_lcd-2019jun6v7.pdf

regards
stancecoke

Yes I have. Thanks though for the tip

 

[E-HP]

I didn't but I've searched not only on this forum but also many others on internet as well and (as written in my first message) already tried all of them! If my problem was solved here on the forum it wouldn't ben needed to PM him.

what was the result from checking the hall sensors as suggested by ak136 in the first response?

 

[Farshad68]

what was the result from checking the hall sensors as suggested by ak136 in the first response?

after reading a lot about ebike controllers and brushless DC motor is pas few days my understanding was that the motor should atleast do something and move (even not flauwless) without hall sensors connected. maybe I'm wrong so I just tested the hall sensors with multimeters and all three are fine. Negative to black and green,blue, yellow in turn show 4.90v which changes to zero by slowly turning the motor.

 

[E-HP]

No. The motor can be in a “stuck” state when the hall or phase conductors are either mismatched are faulty. You have not provided enough information on whether your controller is either dual mode ore sensorless capable.
If the self learning is not working, you may need to find the correct match for the motor conductors based on the flow chart in the link below.

Testing BLDC motor's Phase Wiring - Hall Sensors and Wiring. - Electricbike.com Ebike Forum

Testing electrical components of a typical hub motor with a digital multi meter. First take a few minuets and look over the wiring going into the motor for cuts, scrapes, missing insulation and other wiring issues or poor connections that should be resolved first. Smell for...

electricbike.com

 

[Farshad68]

No. The motor can be in a “stuck” state when the hall or phase conductors are either mismatched are faulty. You have not provided enough information on whether your controller is either dual mode ore sensorless capable.
If the self learning is not working, you may need to find the correct match for the motor conductors based on the flow chart in the link below.

Testing BLDC motor's Phase Wiring - Hall Sensors and Wiring. - Electricbike.com Ebike Forum

Testing electrical components of a typical hub motor with a digital multi meter. First take a few minuets and look over the wiring going into the motor for cuts, scrapes, missing insulation and other wiring issues or poor connections that should be resolved first. Smell for...

electricbike.com

I don't think it's sensorless. Here the link of seller

https://nl.aliexpress.com/item/1005007348460781.html?spm=a2g0o.order_list.order_list_main.11.5f0c79d2KNzamq&gatewayAdapt=glo2nld

lots of info in the link you posted. Gonna read it asap. Thanks!

 

[stancecoke]

If the self learning is not working

As far as I understand, self learning is the only thing, that works
@Farshad68: have you tried, if the push assist works? Long press on the "-" Button

 

[E-HP]

As far as I understand, self learning is the only thing, that works.
@Farshad68: have you tried, if the push assist works? Long press on the "-" Button

I mean not identifying the right combination.

 

[Farshad68]

As far as I understand, self learning is the only thing, that works
@Farshad68: have you tried, if the push assist works? Long press on the "-" Button

Exactly! lol
The strangest thing is that changing battery voltage from default 36v to my pack 24v causes the motor to spin like I'm using throttle!

have you tried, if the push assist works? Long press on the "-" Button

I did but I see no walking sign on lcd as I'm supposed to!
The only thing I get the motor to do (which is a hub motor Batavus/Sparta ion) is running only in learning mode.

 

[Farshad68]

Just read the info from the link E-HP sent to me and I'd done all that before. As far as three phases and hall sensors from motor they seem all to be ok.
I bought another controller which doesn't have a plug for lcd and should get it in coming days. Curious what that one would do!
Does anyone know if the "meter plug" wire on controller can be used as RX (data receiving line of S866 screen)?

 

[stancecoke]

As far as three phases and hall sensors from motor they seem all to be ok.

Have you checked the break connectors? Is it brake high or brake low?

 

[Farshad68]

Have you checked the break connectors? Is it brake high or brake low?

The controller has a low two wires brake plug and a three wires plug. Never checked or connected anything to the 3 wires plug (white one which is named electric brake in the pic). The low brake is default open and if I short it comes brake sign on screen and that would disable throttle and stop the motor.