P1 setting for S-LCD3/S12S and yescomusa 1000w motor

[puregsr]

Can somebody help me figure out the P1 setting for a yescomusa 1000w motor purchased within the last two years pairing S-LCD3 with S12S sine wave controller?

P1 Motor Characteristic Parameter Setting Mode
P1 is motor characteristic parameter setting mode. P1 = motor gear reduction ratio × number of rotor magnet pieces, just rounding if there’s any decimal.

And I can't get the nice dual hall PAS sensor from bmsbattery to work.

 

[wesnewell]

Try 46, For some reason that number sticks in my head. If that doesn't work, try 23. Or ask someone that uses the LCD. I don't. I'm pretty sure there are 46 magnets in there dd motors.

 

[puregsr]

The motor seems to run well when sitting on the stand, hitting 40 mph unloaded, but then test riding is a different story with it not going past like 10mph and no response from the throttle intermittently. My watt meter shows I did peak at 25 amps, what could be the problem?

 

[wesnewell]

I assume this is the kit you bought.
http://www.yescomusa.com/collections/sports-rec/products/26in-rear-electric-bicycle-motor-conversion-kit-48v-1000w/
What battery are you using?
What do you have the lcd max speed set to?

 

[puregsr]

I assume this is the kit you bought.
http://www.yescomusa.com/collections/sports-rec/products/26in-rear-electric-bicycle-motor-conversion-kit-48v-1000w/
What battery are you using?
What do you have the lcd max speed set to?

It's working fine now with the few short test rides I did after playing around with the settings of P and C, which really is a mystical voodoo science buy itself ... It's not cutting out anymore. Wow, it's eerily quiet.

Since we're on the topic, do you know what's the exact model and wind of that yescomusa motor being reportedly a clone of the 9C motor? Electricbike.com has an article on 9c motor mentioning 46 poles and 52 teeth, would that be the gear ratio? 46:52 or 52:46?

Also, if I'm drilling a small vent hole, where would be the safest place to start drilling without taking off the plate?

 

[wesnewell]

I don't know about the newer model with the lcd, but the one I've got ~20K miles on is a GoldenMotor GM 901 OEM or clone. I don't know who started the rumor of the 9C clone, but I'm pretty sure that the older 9C motors were not 1000W motors. That, and the fact that my motor actually has a GM part number on it. Go to the hub motor selection on the GM website and go down about half way and see if you see your motor. It appears they've used the same motor and redid the covers for disc brake compatibility.
http://goldenmotor.com/

 

[puregsr]

You're probably right. They all look so similar, it's hard to tell. I had the wheel built and looked for both motor specs using various calculators and basically arrived at the same calculations.
For those of you interested in this upgrade for your yescomusa 1000w motor with BMS Battery S12S sine wave controller and S-LCD3, here are a few things to keep in mind.

Connectors are different, namely PAS, throttle, brake, and hall wires. You need to either purchase those parts from BMS Battery at the same time or do your own wiring/crimping/connector sourcing.

Remember to buy an external speed sensor. Oddly, the cool-looking Dual Hall Sensor 12 Signals did not work at all. The regular 12-pole PAS works fine but the wire is way too short from BMS Battery and had to be lengthened. This setup has regen and cruise and super easy to set up.

Here are my P and C settings and it runs smoothly and quietly. It accelerates like crazy and I'm hitting 30mph really easily.
P1 46
P2 1
P3 1
P4 0
P5 08

C1 03
C2 0
C3 1
C4 0
C5 10
C6 3
C7 1
C8 0
C9 0
C10 n
C11 0
C12 4
C13 1
C14 2

Good luck.