HELP me with my build - BAFANG BPM 36V500W REAR DRIVING BIKE CONVERSION KIT

[bilabonic]

Hi Guys

Got this kit on order - BAFANG BPM 36V500W REAR DRIVING BIKE CONVERSION KIT

Notice it has the following connections -

Motor - obvious
Brake - obvious
Motor hall sensor- Is this required what is its purpose ?
1+1 pedal assisted wire - What is this ?
Throttle wire - obvious
3 speed switch kit - ????
speed limit wire - presume just restricts to 15mph ?
cruise wire - when operated keeps motor/voltage as set ?

What is ABSOLUTELY needed (motor,throttle -obvious) and what are the other s for and does anyone have pics/advice of where how to fix them ??

Here is a pic of the controller -

I plan on using a standard MTB with discs. Have the batteries running at 44.4v 15ah lipo.

Cheers

 

[bilabonic]

ANYONE ????

Mods if in wrong are can you move please....

Cheers

 

[Deleted member 4366]

The photo shows it properly connected.

1:1 PAS means pedal sensor. Don't use the pedal sensor because it's too powerful. If you want PAS with this motor, you need a controller with settable PAS level, like those from Conhismotor (about £60).

The cruise wires are also a waste of time and dangerous, so don't connect them. With them connected, if you hold the throttle still for 5 seconds, it locks the throttle until you apply the brakes or blip the throttle. It sounds useful, but in practice, it takes you by surprise when it locks the throttle fully on when you're expecting to stop. It's almost impossible to set at anything other than fully on because the roads are too bumpy to hold it still for 5 secs.

The three speed switch has some use. With nothing connected, you get normal power, with the middle wire connected to one of the others, it reduces the maximum speed to about 15mph. With the middle wire connected to the other wire, you can get a speed boost, Sometimes hardly any difference, but sometimes as much as 20%, so worth trying. The three speed switch has no effect on the pedal sensor speed. After you've got everything wired uo and the motor installed, get a small piece of wire and stick it in the middle pin; run the motor at full throttle with the wheel off the ground, and then stick the other end of the wire in each of the other two pins in turn. You should be able to hear any change in speed. Unless you have a stand, you need a friend to help with this test. It must be done at full-throttle.

Finally, on the three-way battery connector is a thin red wire, which must be connected to the battery +ve (ideally through a switch) for the controller to give power.