potentiometer / hall effect sensor

Thread Starter

truted1

Joined Dec 18, 2017
2
Hello I am working a project that involves a motor controller. The controller has a photometer to control the speed. I have a throttle I would like to use but uses a hall effect sensor. I was wondering if I could just wire it directly like + to + or need to do something else.
Thanks.
 

ebeowulf17

Joined Aug 12, 2014
3,307
Hello I am working a project that involves a motor controller. The controller has a photometer to control the speed. I have a throttle I would like to use but uses a hall effect sensor. I was wondering if I could just wire it directly like + to + or need to do something else.
Thanks.
Part numbers, datasheets? Without knowing what parts we're discussing, it's all guesswork.

Failing that, you might be able to make good educated guesses based on some multi meter measurements.
 

Reloadron

Joined Jan 15, 2015
7,857
The controller which has a hall effect sensor input is likely looking for a speed feedback signal. Without knowing the motor and controllers in question there is no way to answer your question. Motor as in motor voltage and current and the same for controllers?

I see ebeowulf beat me to the questions. :)

Ron
 

ebeowulf17

Joined Aug 12, 2014
3,307
Sorry about being vague. The controller is this.
The throttle is this
I took it apart and found it was a hall effect sensor type.
No problem, thanks for the links. Unfortunately, I don't see datasheets linked in the Amazon listings (typical for Amazon) so you'll have to do some detective work.

Do you already own these, or are you planning and shopping right now? If you've already got the motor controller, and you've got a multi meter, you can measure the voltages on the speed control pot wires. My guess is that black will be ground, red will be whatever you've provided as supply voltage, and yellow will be an output proportional to pot position. Assuming this is true, and assuming your supply voltage is 12-48VDC (the voltages listed for the throttle sensor,) it'll probably work.

I can't say with any certainty, but if I were in your shoes, I'd measure those pot wire voltages and most likely end up trying what you proposed. I think you've got pretty good odds.
 

Reloadron

Joined Jan 15, 2015
7,857
I agree the odds are pretty good. Unfortunately they don't mention the value of the throttle pot. The controller does mention the voltages and the current which is 30 Amp. As long as your motor is within that current rating it will likely work.

Ron
 

MaxHeadRoom

Joined Jul 18, 2013
30,561
How do you intend interfacing the throttle which evidently outputs a 1v -4v signal to a controller that takes a 5k - 10k pot for speed control?
Max.
 

ebeowulf17

Joined Aug 12, 2014
3,307
How do you intend interfacing the throttle which evidently outputs a 1v -4v signal to a controller that takes a 5k - 10k pot for speed control?
Max.
Where did you get the 1-4V figure? Did you find a datasheet for the unit? Were there descriptions in the Amazon listing that I just missed? Or is this just one of those common, standard parts that becomes familiar with experience?
 

MaxHeadRoom

Joined Jul 18, 2013
30,561
It appeared to be a common value for the universal type of throttle units using a hall effect, they quote 5vdc supply and 1v to 4v output, the PWM controllers shown typically use a 5k or 10k pot into a 555 IC for control.
Max.
 
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