Ant bms lcd not displaying speed

Boyaffy

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May 7, 2022
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Have a 60v battery pack with a smart bms and a ant bms lcd screen have connected the wire to the hall sensor everything else seems fine just speed always show 0kmh
I have a 29 wheel with a 2.3 tyre what wheel circumference do i set it to as i think maybe that is the issue. Any idea what could be the issue of it not displaying the speed also on these lcds is there a way to set speed to mph rather than kmh thanks
 

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From what I see, you need the circumference to be 2326mm. Your entry in meters will be 2.326, or 2.33 or 2.3 if your input is not accepted.
The value I see at the moment is 1 km !!! That is some wheel.

For pulses, that depends on your motor.
 
Yes i tried 2326mm and 23 for pulse i think is correct as has 46 magnets so divided by 2 gives 23 but still same issue. Picture was taken on default setting
 
Boyaffy said:
Yes i tried 2326mm and 23 for pulse i think is correct as has 46 magnets so divided by 2 gives 23 but still same issue. Picture was taken on default setting

Are you using 2326, or 2.326?

The former means 2325 *meters* according to that displayed setting, so you won't get any useful speed reading / etc because you would have to travel over 2 thousand meters for it to register just one wheel rotation.

If it will not let you put a decimal point in there, then you can only use 2 meters, which will be very inaccurate...but at least you'll register a speed/etc.
 
It wont allow me to input a decimal point so tried 2 but wven then speed is not displaying at all ive tried loads of different inputs but speed just stays on 0kmh really frustrating no idea what it could be that am doint incorrectly
 
Boyaffy said:
It wont allow me to input a decimal point so tried 2 but wven then speed is not displaying at all ive tried loads of different inputs but speed just stays on 0kmh really frustrating no idea what it could be that am doint incorrectly

Is the sensor line *at the input to the unit* getting a good signal?
 
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