DC Stepper Motor stalls

@roodyj

Screen-capture didn't pan out,  but am sending settings (Servo in Voltage Control mode) here.  See attached Word document.

Again, I am getting a "Stall" flag, but am able to rotate the shaft (hence, resonant frequency on the loop antenna) quite consistently.  In my case, 1.2 degrees = 1 kHz, approximately, but I will need establish how "linear" that is as I don't think it is over the entire 300 kHz of bandwidth.

See the Word file that shows some of the parameter settings.

Juha

@roodyj

Jim,

Did you have issues with lap-top or desk-top when connecting to the controller over Wi-Fi?  I still can't do it and must connect using my Android phone.

Best!

Juha

@roodyj

Jim,

Managed to connect to the controller using an "ancient" lap-top,  but I still need to be able to do that on another, more conveniently located lap-top.  

Attached, see the Python code (Word doc).  I just copied the code and pasted into this Word doc.

 Need to play with parameters still to get rid of "stall flags".  Again, Servo under Voltage control that I have found to work for me.

Juha

@roodyj

Jim,

BINGO - Increased PWM frequency to about 40 kHz and played with Kt etc. values.  No "stall flag" or any other flag for that matter :-)!

Juha

Posted by: @jj2013

@roodyj

Jim,

Did you have issues with lap-top or desk-top when connecting to the controller over Wi-Fi?  I still can't do it and must connect using my Android phone.

Best!

Juha

 

 

 

Juha,

No I did not. Today I finally set up the WifiStepper as a "station" on my home network, and it works!

Prior to that change, I always had to make sure that the wsx100 network was connected to my laptop wifi.

I then had no problem running the Quickstart or even the set-up portion of my Python script.

Thank you for the .docx. I will study it and see if my senility improves.

Jim 

@roodyj

Hi Jim,

Awesome!

Now,  this may seem like an "odd" question,  but how did you set it up as a "station?"

Good evening from Texas,

Juha

@jj2013

Juha,

Watched this Getting Started video https://www.wifistepper.com/getting-started.html several times, and followed step by step. I also had to use the ipscan program to get my stepper IP address after connected. In setting station I used my main wifi SSID just as if I wanted to login to my router. Make sure the main SSID is also accessible thru wifi. If having problems, I used the WifiStepper reset to factory defaults process. I am using Windows 8.1 so overall process may be a bit different with other OS.

Jim

@roodyj

Jim,

Thanks for getting back.  I didn't even know there was a "Tutorial."

My O/S is Windows 10 and I have set up the stepper as an AP rather than a station. It comes up nicely on my Android phone, even Kindle Fire HD8 and the "antique" XP lap-top, but doesn't on the Windows 10 machine.  When I switch off WiFi and then back on again I can see the stepper controller,  but on the Windows 10 machine there is an error and nothing shows up (Quick Start or Settings ) except the IP address I had typed into the search window.

Let's see.

Juha