CA V3 Speedo Not Working - Problem Solved

[Trackman417]

Hello,

I bought a new CA V3 from ebikes.ca and 8000 Watt controller with WP8 plug from Hi-Power Cycles. Currently running everything off a crystalyte x5403.

I set the pole qty and wheel diameter in the CA. First test run and I find out the speedo is not working.

Trying to do some trouble shooting and I can see the arrow in the "SETUP SPEEDOMETER" menu is pulsing up and down with the motor being turned by hand. See photo below for quick reference.



I hooked up an older CA V3 via WP8 to JST connector adapter and still no dice with the speedo, so it isn't the CA.

The motor runs flawlessly and silently with the sinewave controller, so I know the hall wires are wired correctly to the controller.

After I source a 500 ohm resister, I am thinking about jumping a hall signal wire directly to the speed pin 2. But, before I proceed, I would like to see what other opinions are out there. Looking for some help on how best to trouble shoot this.

 

[chuyskywalker]

After I source a 500 ohm resister, I am thinking about jumping a hall signal wire directly to the speed pin 2. But, before I proceed, I would like to see what other opinions are out there

I'm not sure what the resistor is for; I've tapped the speedo pin into one of the halls before and it worked as expected. (Maybe I got lucky.)

I don't know how many magnet pairs the motor has, but check that it's not too many. I vaguely recall the CA has some upper limit on pulses per wheel turn, so if that's too high it can't run off the hall pulse signal.

 

[Trackman417]

The resistor is a recommendation from ebikes.ca to help smooth out any noise in the line from the motor. But, since I can't seem to find any resistors, guess I will do without! lol

I have 12 pole pairs set for the motor, as noted on the ebikes.ca CA V3 user manual for the x5403. 12 pole pairs is lower than anything else.

I ended up ordering a CA V3 with a wheel speed sensor. Would like to be able to ride knowing how far I went and not worry about range.

 

[wturber]

The resistor is a recommendation from ebikes.ca to help smooth out any noise in the line from the motor. But, since I can't seem to find any resistors, guess I will do without! lol

I have 12 pole pairs set for the motor, as noted on the ebikes.ca CA V3 user manual for the x5403. 12 pole pairs is lower than anything else.

I ended up ordering a CA V3 with a wheel speed sensor. Would like to be able to ride knowing how far I went and not worry about range.

Didja ask Grin if they had any clues why you aren't getting any speedo output? I wish I had something to add other than the wheel speed sensor version of the CA I have works fine. Just for grins, I used two wheel magnets. All seems fine.

 

[Trackman417]

I had an email out to Grin laying out everything. Their suggestion was a wheel speed sensor, but I started pushing them to see if they can help me find the actual problem. They are still trying to help me.

 

[Trackman417]

Problem has been solved.
HPC advised to revert back to CA V3 version 14, and not 15.
Works like a charm now!