Kt-lcd3 won't read how fast

[Madeinusa13]

No matter what I do to set the miles per hour it won't show up on the kt-lcd3 I have a 48 volt 1500 w and I also already have it in miles per hour

 

[Madeinusa13]

Sorry I think I posted this and somebody else's thread

 

[Madeinusa13]

Hi all hope I can get a little help my controller kt-LCD 3 won't read miles per hour I have a 48 volt 1500 watt ebike kit with a 52 volt battery it's fast but it doesn't read the miles per hour no matter how fast I go it says I'm doing like 13 mph no matter what magnet plate number I put it on 0-6 and still doesn't read correctly 26-in rim please help

 

[E-HP]

Hi all hope I can get a little help my controller kt-LCD 3 won't read miles per hour I have a 48 volt 1500 watt ebike kit with a 52 volt battery it's fast but it doesn't read the miles per hour no matter how fast I go it says I'm doing like 13 mph no matter what magnet plate number I put it on 0-6 and still doesn't read correctly 26-in rim please help

What are your settings under General Setting for wheel diameter, and for P1 and P2 under the P parameter settings?

 

[docw009]

P2 is the number of times the speed sensor flashes per revolution. For no sensors, use P2=0 .For an external sensor, P2=1. Many bafang motors with internal sensors use P2=6, while others use P2=1.

P1 refers to the number of magnets in the motor x the gearing. This is used to calculate the speed when the motor is spinning, If you have a direct drive motor, it's just the number of magnets. There's no need to be exact, as you can only enter a few preset wheel sizes. I've got two bikes where the tire size is a 1/2" apart, and one of these days, I'll try to adjust P1 so they aren't 5% apart after 20 miles. If you don't know this number, it can be measured by counting how many times a Hall sensor flashes in one turn. Just set P1 so the speedometer is giving you something close. Oddly enough, if I set P1 arbitrarily low, like 30 when it should be 200, it actually slows down the no lpad rpm, meaning there is a performance impact.

 

[hemo]

Does the hub have an internal speed sensor or ext ? If none set P2/0 and it will take a calculation form PAS if fitted.
For P1 you will likely need to set it to 46 for a DD hub.