KS16X saying "move to hault"? What does it mean?

[BKW]

Beyond the obvioustge wheel telling me to "move to hault", my KS16X just started saying this tonight. Anyone know what it might be indicating is the issue?

I'm not 100% sure it is saying "move to hault" but it's something very similar sounding. I did feel like that feeling when it feels like there is a pebble stuck in the wheel well and then I heard the notification.

What might it mean? Anyone experience this before? I looked on my diagnostics on the KS app and everything appears normal. It's happened twice tonight 

[BKW]

Looks like a motor hall issue:

[on one]

Is that picture a screen shot of your King Song App?

I have ridden me King Song 14D alot over the years and I have gotten speech alerts "Hello King Sol" "Warning Over-power" and recently I got, "Warning be cautious" and "Warning Over Voltage" speeches

I never got "move to halt" I don't know if that's a new speech message, or if my wheel doesn't know that one yet, or what.

[BKW]

I couldn't really understand it myself, but after seeing this picture I think it probably said "motor hall". Still not sure exactly what it said.

But yeah, that picture is a screenshot from my phone after I got the message again, which was on the official KS app.

I'll probably end up opening it up and looking at the hall sensor.

[on one]

cracking it open might not be necessary yet

Does your 16X still ride like normal?

I think King Song wheels just like to talk sometimes.

[BKW]

Just now, on one said:

cracking it open might not be necessary yet

Does your 16X still ride like normal?

I think King Song wheels just like to talk sometimes.

It does ride, but in one night I got the warning 3 times within a 1-2 hour span. I'd rather not risk it. I also felt the "rumble" you get when the voice went off indicating a hall issue. I've had the wheel since 2021 and I never heard this before and it happened all in one night.

[alcatraz]

Maybe check the hall sensor connectors for oxidation or a loose connection? Other wheels have white goop around the connectors to keep them solidly connected.

Maybe vibrarions cause the error to occur.

[BKW]

13 hours ago, alcatraz said:

Maybe check the hall sensor connectors for oxidation or a loose connection? Other wheels have white goop around the connectors to keep them solidly connected.

Maybe vibrarions cause the error to occur.

yes, i plan on looking at the sensor connectors.

There is a good video that shows exactly how to do that, which I plan on following:

 

[BKW]

So I finally checked the hall sensor for the ks16x. I put a multimeter to the positive and negative on the hall sensors, and I got three different readings: 1.993,  1.972,  2.027

I don’t know much about hall sensors but does this look good?

Also, I’m not sure what the volts I should be seeing for the ks16x. Does anyone know? @alcatraz

 

Edited November 19, 2024 by BKW

[alcatraz]

Are those ohm readings? Did you measure between ground and the three color wires?

Hall sensors have 5 wires. Red/black is for 5v power supply and the other three are the readings which should change with the motor position in a sinus curve fashion. 

I haven't tested it myself but one idea is to take a spare usb cable, and strip the opposite end of it (keep the USB-A side) and connect to black+red, note polarity. Connect to any old usb charger.

Then with the multimeter in VDC between ground and the three colors see if the value resembles a sinuscurve 0-5v. 

I imagine that when it's malfunctioning it's stuck at high/low, or it jumps around (doesn't follow the sinuscurve). 

Now if all this sounds too complicated I'd first get in touch with kingsong and hear what they'd recommend to fo first. 

Note that the problem could be intermittent, or it could be difficult to fix. Sometimes "swap motor" is the easiest thing to do. Now we don't know if that is indeed what's needed.

You could try and score a second 16X and swap some parts. See where the problem lies, then swap that part, and end up with two working 16X.

[alcatraz]

If those three measurements are ohm readings the good news is that you have similar readings and that there doesn't seem to be an open circuit (broken wire), although sometimes vibrations can cause an open circuit if the wire isn't completely broken.

[BKW]

Yes, those are ohm readings. I’ll make a quick video on it since I am pretty dumb with these things

[alcatraz]

To me, move to hault could mean high temperature, low battery/bms fault.

1 minute ago, BKW said:

Yes, those are ohm readings. I’ll make a quick video on it since I am pretty dumb with these things

Not at all. You're already among the 1% that investigate this far. Well done.

[BKW]

@alcatraz

Here is the video of me testing the hall sensor on the KS16X:

 

Edited November 19, 2024 by BKW

[BKW]

Do you think I should change the sensors anyway? I have the stuff to do it.

i wonder if it might be the mainboard?

Also, the “move to hault” I described earlier is probably not what it said. It probably said “motor hall”. But I’m not sure. I took a picture of the error reading on EUC World earlier in the thread. There was also a rumbling feel like something related to the motor

 

Edited November 19, 2024 by BKW

[HΞNRiK]

Hi! I created an account for replying you and I wish you good luck!

The hall sensor should give you voltage variations from said three channels and is used to precisely detect the wheels position or any other magnetic component like thumbsticks on a gaming controller. Without this sensor you can get a rough readout counting complete motor revolutions or say increased restiance along a path, hence the somewhat rumbling or jerky motion you experienced when the hall sensor wasn't working.

The three top graphs in the image below represents hall sensor readouts and I belive that the application below is similar to a speed controller for an electric motor. If you could plot your readouts while turning the wheel you should get similar phase-shifted sinus curve results. In turn I would get in contact with a Kingsong technician.

Cheers!