S866 controller ebike issues

[smitch6]

Hi i have a powacycle windsor that the controller went kaput.
so i bought a generic one off flamazon, which had the S866 led screen.
i have kind of managed to get it working.
had to get a new throttle and a new PAS also.
when it is in any mode 1-5 the PAS seems to work for a second then stop even though i'm still pedaling, but as soon as you stop pedaling the pas kickjs in for another few seconds.??

also when in mode 1 using the throttle i can only get about 1mph out of it,
if i switch to number 2 it goes a bit quicker up to No 5 where it will go about 9.5mph
i've nevr had this before.....
anyone got any ideas pls?

i've gone into the settings and told it it's a 24v with 26" wheels and that the PAS has 12 magnets.

 

[vfr400]

Hi i have a powacycle windsor that the controller went kaput.
so i bought a generic one off flamazon, which had the S866 led screen.
i have kind of managed to get it working.
had to get a new throttle and a new PAS also.
when it is in any mode 1-5 the PAS seems to work for a second then stop even though i'm still pedaling, but as soon as you stop pedaling the pas kickjs in for another few seconds.??

also when in mode 1 using the throttle i can only get about 1mph out of it,
if i switch to number 2 it goes a bit quicker up to No 5 where it will go about 9.5mph
i've nevr had this before.....
anyone got any ideas pls?

i've gone into the settings and told it it's a 24v with 26" wheels and that the PAS has 12 magnets.

Your bringing back memories from about 5 years ago. I'm pretty sure that's what I had with an installation. If not, something like it. There were some very unususual settings in the LCD. Luckily, there was a Chinese explanation of the settings in the listing that I managed to decypher enough to figure it out. Was there anything in your listing? Have you got a link to it?

 

[smitch6]

this is the listing

Broco Controller and LCD, 24V-48V Waterproof LCD Display Panel Electric Bicycle Scooter Brushless Controller Kit Motor Brushless Controller (24V/36V 350W) : Amazon.co.uk: Sports & Outdoors

Broco Controller and LCD, 24V-48V Waterproof LCD Display Panel Electric Bicycle Scooter Brushless Controller Kit Motor Brushless Controller (24V/36V 350W) : Amazon.co.uk: Sports & Outdoors

www.amazon.co.uk

there are some instructions but being chinenglish they are as useless as a chocolate fireguard lol

 

[vfr400]

I think the most likely cause of your problem is the setting for speed sensor magnets, which is P07, I think. How old is the bike? Does it have a speed sensor in the motor? Are you using an external speed sensor? What speed do you see on the display and when?

 

[smitch6]

no not using an external speed sensor,
Po7 i think is set at 100
not a clue how old the bike is, i'd say a few years old.

 

[vfr400]

You didn't answer the questions about what speeds you see on the LCD, which were the most important ones.

The controller needs a speed sensor, and P07 setting has to be set correctly, otherwise it can't calculate speed correctly. Some motors have a speed sensor in them that transmits a speed signal through a white wire in the motor cable. The only way you know if it has one is to rotate the wheel backwards while switched on and measure the voltage on the white wire. If it does one pulse per revolution, you have one magnet in the speed sensor. If you get 6 pulses per revolution, you have 6 magnets, and if you get no pulses, you have no speed sensor, so you need an external wheel magnet type.

The P07 setting is the number of pulses per revolution, which it uses to calculate speed, so if you set it to 100 and you have one magnet, the calculculation will be out by a factor of 100.

Without a speed sensor, the controller will usually pick up a speed signal automatically from either the motor hall sensors or the back emf. You know when it's doing that because the speed goes to zero when free-wheeling, when the motor is stopped, but the wheel turning. The setting for that is normally zero

The wheel diameter (P06) also needs to be set correctly to calculate speed.

Post your actual settings here, so that we can go through them.

 

[smitch6]

aaaaahhhhhh i don't have a white wire on my wheel

 

[smitch6]

sorry speeds, in setting 1 i get about 1mph in setting 2 about 3mph up to setting 5 i get 9.5mph

 

[vfr400]

sorry speeds, in setting 1 i get about 1mph in setting 2 about 3mph up to setting 5 i get 9.5mph

Just to makee it clear, is that the speed you see on the LCD? How fast is the wheel actually turning?

 

[smitch6]

thats on the lcd, the wheel is defo faster in 5 than in 1

 

[vfr400]

thats on the lcd, the wheel is defo faster in 5 than in 1

You need a spoke magnet speed sensor. You can buy an ebike specific one or cut one off a normal cycle computer. The ebike ones are three wires: 5v (probably red) goes to any other red 5v, like PAS, throttle or hall sensor; 0v (normally black) goes to any black ground; signal (often white) goes to the white in thr motor hall connector block. If it's a 2 wire one from a cycle computer, either wire goes to the white one in the hall block. The other will go to either any red 5v or any black ground. You have to see which way round it works. Some are 5v high pulsing low, and others are 0v low pulsing high with 5v.

 

[smitch6]

sensor ordered

 

[smitch6]

what should i put setting P07 at with the new sensor?

 

[Nealh]

One for one speed magnet.

 

[Krisztina]

Did you fixed it? I know it's happened a long time ago, but may you can remember i got almost the same issues.

 

[saneagle]

Did you fixed it? I know it's happened a long time ago, but may you can remember i got almost the same issues.

Did you set the number of speed sensor magnets correctly?

 

[Krisztina]

Did you set the number of speed sensor magnets correctly?

Yes, i had to set it to 86 to show me the right speed. I did read your help before under other post's, so i tried the 1 the 6 but the speed showed some crazy numbers under those set.
I know the speed by the throttle wich is works perfectly. The pedal sensor blinks when I'm pedalling but doesn't give any support. We tried to change the wires just in case as we may wrong, but it was the one way when it's seems to be okay.