S-LCD3 LCD Meter parameters: P1

Hello,

I have the following (purchased from BMSBattery):

BPM 48V 500W (14) rear hub motor, production code/SN: 1311280421 (700c wheel)
S12S Controller
S-LCD3 LCD Meter

I'm setting the S-LCD3 parameters and am looking to answer the following:

P1 = motor gear reduction ratio×number of rotor magnet pieces

It appears the reduction gear ratio is 5:1 (yes?).

How do I find “number of rotor magnet pieces” ?

Thanks in advance,
Stan.

from BMS battery "data for BMP II;
reduction ratio: 1:5
Hall Sensor: Waterproof hall sensor and sensorless compatible
Dropouts 135mm
Axle Size: M12
rotor alnico number: 16
Weight: 3.98

So, 16 X 5 = 80

I'm interested in P 5
Fellow said 14 w\ a 48V battery works for him, so I guess I will try 13 for a 12S pack(46V)

motomech said:

from BMS battery "data for BMP II;
reduction ratio: 1:5
Hall Sensor: Waterproof hall sensor and sensorless compatible
Dropouts 135mm
Axle Size: M12
rotor alnico number: 16
Weight: 3.98

So, 16 X 5 = 80

I'm interested in P 5
Fellow said 14 w\ a 48V battery works for him, so I guess I will try 13 for a 12S pack(46V)

Click to expand...

motomech, thank you very much. I will be getting back to this later this afternoon and work on a couple more Parameters including P5. If I can add anything to the conversation, I will. Thanks again!

Stan

P5 is a damping factor for the battery level display. If you set it to zero, there's no damping, so the display works like a voltmeter going up and down as the battery sags under power. When you add a damping factor, it behaves more like a fuel gauge.

d8veh said:

P5 is a damping factor for the battery level display. If you set it to zero, there's no damping, so the display works like a voltmeter going up and down as the battery sags under power. When you add a damping factor, it behaves more like a fuel gauge.

Click to expand...

Thanks d8veh! Why didn't they just say that in the documentation? Your explanation is fantastic. Thanks again.

Stan

Hi guys

In the thread below I explain the use of parameter P1 on Q100/S-LCD3 display.
I expect it to be the same on q128 and other motors/LCDs

https://endless-sphere.com/forums/viewtopic.php?f=2&t=97237

Sincerely yours

DuncanDK