Is the Magura throttle compatible with the Kelly Brushless controller?

formicafowl's picture

So here's my problem: I have a 48 volt Kelly brushless motor controller and the 0-5k Magura motorcycle style throttle. Now I'm sure you all know this part but I'm gonna put it in here anyways for clarification; the Magura has a blue (top speed) wire, a brown (wiper/variable) wire, and a black (zero speed) wire but in the Kelly manual it only refers to a throttle with a (+5v) wire, a (GND) wire, and a wire that says (OUT.) On the Kelly website they have a similar bike throttle but all it tells me is that the (+5v) wire is red and that the (GND) wire is black. I did notice that one throttle says "0-5k" while the other says "0-5v" which may be the actual issue. I'm almost done with my bike and I don't want to wire it incorrectly and mess something up. If anyone could tell me if the Magura is even compatible with such a controller and if so, which of the wires represent the "5V," the "OUT," and the "GND" then I would really appreciate it. I already emailed someone from the Kelly website and he said that he wasn't familiar with the Magura and couldn't help me much.

Thanks.

Comments

reikiman's picture

You mean this controller: http://www.kellycontroller.com/mot/Ebike-BLDC-controller.html ??

I believe it's not. Their brushed DC controller (which I have on one bike I'm still working on) can handle either a resistive throttle or hall effect throttle. The throttle you have has a variable potentiometer and is a resistive throttle.

You clearly need a different throttle. What isn't clear whether that means "hall effect throttle" or not.

PJD's picture

David,

Can you clarify? You say it can handle either type, then say the Magura throttle won't work because it is one of the types.

formicafowl,

The specifications say that this controller can handle four different signal inputs: 0-5K ,5-0K ohms,0-5 Volts, 5-0 Volts. If it is a resistive throttle, your throttle should work in any of these modes:

1. brown and black (order not important) for 0-5K;

2. blue and brown (order not important) for 5-0K

3. blue for +5V from controller, brown for 0-5V to controller, black for ground for the 0-5 volt case; and,

4. black for +5V from controller, brown for 5-0V to controller, blue for ground (not recommended as the black color denotes ground in DC circuits - confusing anyone else working on it)

If it is a hall throttle, then it seems the correct wiring would be blue = +5V (the "red" wire), Brown = 0-5V signal, black = ground.

But you need to determine if it is a hall or resistive throttle. Looking this up on the internet suggests the latter.

Get an multimeter set to resistance, if it is a resistive throttle, the resistance between the blue and brown should be some high (probably 5K ohms) value, going lower as you twist the throttle. Resistance between the brown and black should be low, going higher as you twist the throttle. If it hall throttle, there will be no change in resistance as the throttle is turned.

reikiman's picture

David,

Can you clarify? You say it can handle either type, then say the Magura throttle won't work because it is one of the types.

The manual for their brushless controller only discusses throttle and brake inputs with 0-5v range.

The magura throttle is a resistor and does 0-5k ohm.

Their brushed controller can connect with either resistor or hall effect throttles.

formicafowl,

The specifications say that this controller can handle four different signal inputs: 0-5K ,5-0K ohms,0-5 Volts, 5-0 Volts. If it is a resistive throttle, your throttle should work in any of these modes:

1. brown and black (order not important) for 0-5K;

2. blue and brown (order not important) for 5-0K

3. blue for +5V from controller, brown for 0-5V to controller, black for ground for the 0-5 volt case; and,

4. black for +5V from controller, brown for 5-0V to controller, blue for ground (not recommended as the black color denotes ground in DC circuits - confusing anyone else working on it)

If it is a hall throttle, then it seems the correct wiring would be blue = +5V (the "red" wire), Brown = 0-5V signal, black = ground.

But you need to determine if it is a hall or resistive throttle. Looking this up on the internet suggests the latter.

Get an multimeter set to resistance, if it is a resistive throttle, the resistance between the blue and brown should be some high (probably 5K ohms) value, going lower as you twist the throttle. Resistance between the brown and black should be low, going higher as you twist the throttle. If it hall throttle, there will be no change in resistance as the throttle is turned.

The manual for their brushless controller does not discuss all those options. It only discusses a 0-5v option. The manual for their brushed controller does discuss all those options.

formicafowl's picture

Actually, the controller that I have (while I'm sure it's similar to the one you listed) is located here: http://www.kellycontroller.com/mot/Brushless-DC-Motor-Controller.html
This probably doesn't change anything in your evaluation but I figured it's worth a shot. Mine's the KBL48201 48 volts, 200 amps by the way. Also, thanks for answering so quickly. I'll take any help I can get.

reikiman's picture

Mebbe what PJD said is right. You linked to a different controller than the one I looked at. In the manual for this one there is a note on the wiring diagram "Potentiometer can be used to output 0-5V" ...

A careful reading of the manual doesn't describe how to do so.

PJD's picture

"It only discusses a 0-5v option. The manual for their brushed controller does discuss all those options."

If it is like other controllers I've seen, the controller provides the +5V power plus a ground for the throttle, so, the potentiometer's wiper will provide the required 0-5V signal. A hall throttle also "mimics" a potentiometer with the same three wires and same 0-5v signal - although the hall throttle can be ruined if it is wired wrong.

formicafowl's picture

Thanks for the suggestions everyone!! The above info was great. I got the Magura throttle to work using the 120 degree setting on the Kelly programing software and by wiring the Magura blue wire (same as the 5V or "the red wire" on the Kelly recomended throttle) to pin 7, the brown wire (same as the one labled "OUT") to pin 5, and the black wire (labled "GND") to pin 2.

I have a Kelly Brushed Motor Controller- KD36200 and am trying to get it to work with my Magura Throttle.

I have also not been able to get my computer to talk to the controller, even though its connected correctly and the power light is on.

As of now, I have the blue wire connected to SW3 for +5V, brown to AN2 for 0-5V throttle analog input, and black to GND for sensor return.

No idea if this is right, but it sure doesn't work.

Any ideas??

formicafowl's picture

Hi, Give me a day or two to look over the KD36200 wiring sheet to familiarize myself with it and compare it with my notes. If I have any ideas or suggestions, then I'll get back with you as soon as I can.

Actually nevermind, I am returning that controller and getting a smaller, cheaper one.

I just got my project working, its a 26" BMX-style bike with a 36V 1000W motor. I only have 24V hooked up to it now and boy is it quick.

Experimenting with batteries right now. Works well with 24V lead acid, but runtime was only about 20 min. I also made(crappily) a 36V A123 pack, but don't have a charger yet.

I know this is old, but i'm going through the same issue. Do you know if a 0-5k pot can be used similarly for the 0-5V analog regen/brake signal?

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