How to wire a hall sensor to a new controller

TBSW

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Feb 25, 2019
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We have a Giant Twist on which we are replacing the control unit. We have a problem with wiring the hall sensor. The hall sensor wires from the bike are Black/Brown/White/Grey/Orange/Green.
The wires on the control unit are the standard stuff Black/Red/Blue/Green/Yellow.
I'm trying to figure out how to know which wire on the controller to hook to which wires on the bike. Any thoughts on how we might make this deduction?
Thanks so much for any help.
Karey
 
I don't know that hub motor, but one sure way to find out what wires go where is by opening the hub motor and looking inside.
Sorry but that is my best answer.

:D :bolt:
 
Yes. You follow the wires inside to the hall sensors, of which there should be three. Each one will be tied to the 5v and ground, but the signal from each will be brrought out separately.

The sixth wire could be a number of things, but is probably a thermal sensor or wheelspeed sensor.


This is presuming that those wires are actually even hall sensor wires--they could be a number of things, if the motor has the controller built in they could be for display, throttle, torque sensor, etc., like on the Stromer / etc.
 
https://www.ebikes.ca/learn.html
https://www.ebikes.ca/learn/troubleshooting.html
Repairing a defective hall sensor
Testing for a Defective Hall Sensor
 
The Giant Twist is an old front drive hubmotor. We all assume it is a brushless motor?

If the old controller is still around, I'd see if it still powers up. Then I'd check its hall wires, if that's what they are, to identy +5V. Probably Brown/Black. Now there's only four left.

Then if you want to be super careful, apply +5V to the motor with no controller, a battery would work. Verify the three Hall wires by spinning the motor backwards. On my Q100H, the hall outputs need a resistor to +5 to see a change. This is normally inside the controller, but that's not attached. Then you can see if the fourth wire does anything,

That's just half the battle. Now you have to line up the halls with the phases. Did you buy a self learning controller? That's one way. The other is a sensorless controller. Otherwise , it's trial and error. There's a guide somewhere on this site.
 
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