Wire colors coming from throttle don't match colors coming from controller...HALP!!!

[okie]

Domino 0-5 ohm throttle

Sabvoton 7215 controller

Wires coming from throttle are brown, blue, black

Wires coming from controller are red, gray, black

https://i.imgur.com/RYd90Ov.jpg

And also, if I accidentally get this wiring wrong, what are the consequences? Will it simply not work, or could it potentially destroy something?

 

[Chalo]

I don't think you'll hurt anything if you goof it.

My first guess would be black to black and red to blue. If that doesn't work, try brown to black.

 

[okie]

I don't think you'll hurt anything if you goof it.

My first guess would be black to black and red to blue. If that doesn't work, try brown to black.

Do you think this throttle is compatible with it for sure? Someone on reddit was questioning whether maybe it's not. Both the controller and the throttle have three wires, so...that's good right? :lol:

 

[Chalo]

All electric throttles have 3 wires for their basic function: +5V, GND, and signal. Potentiometer throttles and Hall effect throttles work by different principles, but they both have the same three wires. Yours is most likely a Hall throttle.

Customarily, red is +5V and black is GND, with a variable third color for signal. Your throttle isn't like that, but you can safely assume that the wires from your controller conform to this general rule.

 

[okie]

All electric throttles have 3 wires for their basic function: +5V, GND, and signal. Potentiometer throttles and Hall effect throttles work by different principles, but they both have the same three wires. Yours is most likely a Hall throttle.

Customarily, red is +5V and black is GND, with a variable third color for signal. Your throttle isn't like that, but you can safely assume that the wires from your controller conform to this general rule.

Assuming it's a hall throttle, will it work with that controller at all?

 

[Chalo]

Assuming it's a hall throttle, will it work with that controller at all?

The controller is most likely configured for a Hall throttle. Few manufacturers use pot throttles anymore.

 

[okie]

Assuming it's a hall throttle, will it work with that controller at all?

The controller is most likely configured for a Hall throttle. Few manufacturers use pot throttles anymore.

Oh okay, good deal, yea I think that's right. I misunderstood what you said.

So going from the specifications on this page, I think the brown is equivalent to red. And then black is black.

https://fasterbikes.eu/en/accessories/throttles/203/domino-premium-full-twist-grip-throttle

 

[Chalo]

Domino throttle is one of those rare exceptions that uses a potentiometer. It works great with a Hall type controller, but the reverse is not so good. If the controller expects a pot, a Hall throttle may misbehave.

I don't see a comparable color code to what you have, and yours has typical cheap Chinese style crimp terminals. I wouldn't make any assumptions based on the link you provided.

 

[fechter]

The Domino is the same as a Magura:

Brown is the signal line, Blue is +5v and Black is ground.

If you want to use this with a controller made for a hall effect throttle, you will need a pair of resistors in series with the supply lines. 1.67k will give a 5k pot an output that ranges from 1v to 4v. Using trimmer pots makes the dead space adjustable. Many controllers will give a fault if they see the signal voltage go out of range. Some controllers are programmable for a pot throttle and won't need the resistors. Yours might be one of them since it says 0-5v on the signal line.

 

[Chalo]

The Domino is the same as a Magura:
Magura resistors 2.gif
Brown is the signal line, Blue is +5v and Black is ground.

That was my first guess, based not on those throttles but on other things I've run across like chargers that have had blu/brn instead of red/blk.

 

[okie]

The Domino is the same as a Magura:
Magura resistors 2.gif
Brown is the signal line, Blue is +5v and Black is ground.

If you want to use this with a controller made for a hall effect throttle, you will need a pair of resistors in series with the supply lines. 1.67k will give a 5k pot an output that ranges from 1v to 4v. Using trimmer pots makes the dead space adjustable. Many controllers will give a fault if they see the signal voltage go out of range. Some controllers are programmable for a pot throttle and won't need the resistors. Yours might be one of them since it says 0-5v on the signal line.

I tried that and when I connected the wires the motor just immediately jumped to full throttle. And the controller light started blinking red and the app gave an error that said over current.

Seems no matter what combination I try this is the result...

 

[okie]

The Domino is the same as a Magura:
Magura resistors 2.gif
Brown is the signal line, Blue is +5v and Black is ground.

That was my first guess, based not on those throttles but on other things I've run across like chargers that have had blu/brn instead of red/blk.

Seems no matter what combination I try the motor jumps to full throttle the instant it's connected and the controller light blinks red and the app gives an error message that says over current.

 

[E-HP]

The Domino is the same as a Magura:
Magura resistors 2.gif
Brown is the signal line, Blue is +5v and Black is ground.

That was my first guess, based not on those throttles but on other things I've run across like chargers that have had blu/brn instead of red/blk.

Seems no matter what combination I try the motor jumps to full throttle the instant it's connected and the controller light blinks red and the app gives an error message that says over current.

You may want to open the controller and check the continuity of the black wire from the connector to where it is soldered to the board. A faulty ground wire can cause full throttle, at least for hall based throttles. Not sure about the pot ones though.

 

[okie]

The Domino is the same as a Magura:
Magura resistors 2.gif
Brown is the signal line, Blue is +5v and Black is ground.

That was my first guess, based not on those throttles but on other things I've run across like chargers that have had blu/brn instead of red/blk.

Seems no matter what combination I try the motor jumps to full throttle the instant it's connected and the controller light blinks red and the app gives an error message that says over current.

You may want to open the controller and check the continuity of the black wire from the connector to where it is soldered to the board. A faulty ground wire can cause full throttle, at least for hall based throttles. Not sure about the pot ones though.

The thought of opening the controller kind of terrifies me. Are there any other things I could/should try first?

 

[E-HP]

The thought of opening the controller kind of terrifies me. Are there any other things I could/should try first?

Measure continuity between the black ground wire from the connector and the black ground/negative battery wire going to the controller. They should have a common ground. If you have continuity, jiggle the wire around to see if there's a break somewhere in the wire making it intermittent.

 

[okie]

The thought of opening the controller kind of terrifies me. Are there any other things I could/should try first?

Measure continuity between the black ground wire from the connector and the black ground/negative battery wire going to the controller. They should have a common ground. If you have continuity, jiggle the wire around to see if there's a break somewhere in the wire making it intermittent.

After taking a close look at this one compared to others online, I'm almost sure I got a counterfeit one. Or maybe they just straight up sent me the wrong one, because it looks nothing like the others I'm seeing. Unfortunately I can't even remember where I ordered it from.

Anyways, I ordered another one from a well rated seller on ebay, so hopefully that should solve my issues.

Is there a chance that I've already damaged my controller or motor? The app gave me an over current error and the red light on the controller was blinking. When I disconnected the battery and reconnected it though the green light came on solid and the app didn't give any errors.

ETA: Yes, they sent the wrong one! This one is actually a Magura. It says Magura made in Germany in tiny letters.

It's this one here:

https://www.amazon.com/Magura-Twist-Grip-Throttle-0-5K/dp/B00JXOTI7U

 

[E-HP]

ETA: Yes, they sent the wrong one! This one is actually a Magura. It says Magura made in Germany in tiny letters.

It's this one here:

https://www.amazon.com/Magura-Twist-Grip-Throttle-0-5K/dp/B00JXOTI7U

Should function similar to the other one. It's supposed to be a decent throttle, unless it's counterfeit.

 

[okie]

ETA: Yes, they sent the wrong one! This one is actually a Magura. It says Magura made in Germany in tiny letters.

It's this one here:

https://www.amazon.com/Magura-Twist-Grip-Throttle-0-5K/dp/B00JXOTI7U

Should function similar to the other one. It's supposed to be a decent throttle, unless it's counterfeit.

I don't think it's counterfeit. I remember buying it from a good shop with good reviews.

So I verified that I am in fact wiring it correctly based on the information on the Magura throttles out there. Blue is 5v, black is ground, and brown is signal.

So I guess this means either the throttle is wired backwards or my controller is?

 

[okie]

I found the manual to my throttle, which is apparently actually Magura.

https://www.4qd.co.uk/wp-content/uploads/Magura-Manual-v2.0.pdf

I don't understand these terms they're using like wiper. Is that the same as signal? And pot max is the same a 5v? And pot zero is then GND?

 

[fechter]

Wiper= signal. If you measure voltage from the ground wire to the signal line with the controller on, you should see it go from near zero to near 5v as you advance the throttle. To keep it from tripping the over current, you might want to disconnect the motor for this test. It sounds like the signal line is stuck at 5v. Possibly the ground line isn't grounded.

 

[amberwolf]

Note that with a pot throttle like the magura, if you connect the two "outer" (non signal, non wiper) wires backwards, the controller will see full throttle when the throttle is actually at zero, and vice-versa.

Easy to verify with your voltmeter set to 20VDC, black lead on battery negative, and measure throttle signal line. If it starts at a low voltage and goes to high as you turn the throttle, it's wired right. If it starts high and goes low, it's backwards.