luckyozone7 wrote: ↑
Feb 24, 2018 12:21 am
The 3pin molex with red/green/black and the two 2pin jst with red/green/black wires are connected on the bottom and top in the same location, on the board it shows: black -/ red +/ green T. Dont know how that works unless the green is throttle signal and black/red will open the cirquit -/+ when brake is applied.
Assuming that's the throttle connecotr, then:
+ is 5v to the throttle's hall sensor to power it.
T is throttle signal from throttle sensor to controller.
- is ground to the throttle's hall sensor.
The 2pin must not be quite connected in the same place, or it'd be shorting out signal or power or both, if the 2pin has all three wires in it, as one pair of them must be shorted together at one of the contacts, while the other is by itself. Which pair is shorted at the JST?
You can measure this witl a multimeter on continuity or ohms. Put the red lead on the controller pad +, then measure from that to each of the wires on each of the two connectors. with teh black lead. Then do the same for each of the other two pads T and -
The 2pin molex shows black - and blue S; no clue.
Dunno on that one, but it could be a brake switch, since nothing else you describe sounds like one.
and finally the 2pin jst shows the black and red connected in the same place as the main battery connections, does this apply power to the red and black wires with the green with a switch to power the wires connected in the same place on top and bottom of board since there on the same cirquit....
That's probably an auxiliary power connector for something else on a scooter or similar (like for a DC-DC for 12v lights), and wouldn't be used on a typical ebike.
But you say there's a green wire, in addition to the red and black--that would be odd ot have three wires on a 2-pin connector. There's not normally any reaosn to do that, but youv'e already got at least one of the other 2pins you describe as having three wires, as well.
Anyhow, you'll have ot measure or trace where each wire actually goes inside the controller from each connector, and draw it out.
how do you turn the controller on and off
Some have a "keyswitch" or "ignition" wire, usually a thin wire that's paired up with the main battery wire, that you'd connect togehter to enable the controller. Many don't have any wiring to do this ,and are just always on if power is connected.
how does the battery gauge know the voltage
Because it gets connected directly to battery voltage.
(probably gets voltage from 2pin jst red/black and powers the throttle but which wire do you open the circuit with the black or red for the brakes?) Gonna be inspector clueso and try to figure out...
Your best bet is to draw exactly what you see for all the wiring, and post the drawing here in the thread. Draw the wires and label the connectors and wires for what they are physically, and label them with the letters or symbols they ahve on the controller board.
Then add labels to them for functions as you find out what they are.
Alternately, label things via text, very simply, like you can see I did in some of the threads I linked to, with a list of pad names/etc then the functions I found for them. That method is eas to copy/paste and edit until you are sure you have everything determined.