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Adafruit motor shield V2
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Adafruit motor shield V2

by Theo_Jct on Mon Nov 30, 2020 11:09 am

Hello,
For a project, I use a wifi arduino, an Adafruit Motor Shield V2 for Arduino board and a Motion king stepper motor [17H2A8413].

Unfortunately, when I connected the set, the motor vibrates a lot and doesn't run normally, as if there was a phase problem (see Annex).I tried to change the phases but nothing can be done, the motor doesn't work.

I also specify that I use a laboratory power supply that I limit to about 1.2A to avoid destroying the installation. On the video, you can see that the maximum current is consumed.

I have to say that I really don't know what to do... Could someone help me?

Thank you in advance and have a good week!


The video : https://drive.google.com/file/d/16Nrcq3 ... sp=sharing

Theo_Jct
 
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Re: Adafruit motor shield V2

by adafruit_support_bill on Mon Nov 30, 2020 11:28 am

Unfortunately that motor is not compatible with the shield. The shield uses simple general purpose H-bridges rated for 1.2A. Based on the motor specifications, it appears to be designed for use with a "Chopper" type stepper driver with current limiting. https://learn.adafruit.com/all-about-st ... he-stepper

With a 3.2 ohm phase resistance, the motor would attempt to draw 3.75A per phase (7.5A total) at 12v. To keep the current per phase below 1.2A would require a 3.84V power source, which is below the low-voltage cutoff of the drivers.

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Re: Adafruit motor shield V2

by Theo_Jct on Sun Dec 13, 2020 5:54 pm

Thanks for your answer!
So if I understand correctly, for my motor to work, I should buy a grblShield type driver?

Theo_Jct
 
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Re: Adafruit motor shield V2

by adafruit_support_bill on Sun Dec 13, 2020 8:30 pm

Yes. A GrblShield type driver like the Synthetos would handle it: https://www.adafruit.com/product/1750

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Please be positive and constructive with your questions and comments.