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Big Stepper, Controller and Arduino

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(@douglaskeene)
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Joined: 2 months ago
Posts: 9
Topic starter  
Hi Folks, I am a newbie to arduino and steppers, but loving the instructional videos here.
 
I was able to get a large stepper motor23HS22-2804S-PG47 up and running with a L298N controller, but the torque seemed underpowered. I need to generate PRECISE torque in clockwise and counterclockwise in the 0-200 inch-pound range. I was only able to generate about 100 inch-pounds with the L298N controller, which I concluded can't handle the power requirements. (I may be wrong in this conclusion). But the Stepper motor specifications include:
 
  • Max.Permissible Torque: 30Nm(4248.36oz.in)
  • Moment Permissible Torque: 50Nm(7080.6oz.in)
 
So I bought a controller: DM542T which was recommended as a good pairing with the stepper motor.
 
 
I wired up everything based on the Dronebot Video: "Big Stepper Motors with Arduino" but of course I am trying to work with the DM542T that I bought.
 
I don't know if i need to set any dip switches on the controller for this to work, but i don't get ANY movement of the motor based on following your instructions.
 
Any thoughts?
Thanks for this nice forum and everone's desire to learn and help!
Doug

   
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(@dronebot-workshop)
Workshop Guru Admin
Joined: 5 years ago
Posts: 1073
 

Hi Doug, welcome to the forum!

In regards to the DM542T, is it possible that you didn't set the switch S2 (Control Voltage Selector) to the 5-volt position?  If it's not set, the controller is expecting a 24-volt differential signal, which, of course, the Arduino cannot provide.

Also, the controller can work with either a differential or single-sided input, but the wiring for each is different.

And I'm sure you went over the manual, but if not, there is a copy here.  Section 4 shows the single-sided wiring; for the Arduino, the NPN diagram is the one to follow.

😎

Bill

"Never trust a computer you can’t throw out a window." — Steve Wozniak


   
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(@douglaskeene)
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Joined: 2 months ago
Posts: 9
Topic starter  

@dronebot-workshop Thank you, Bill. I am a newbie and many of the terms in the manual are foreign to me. But, you have made good points, I will check the switches, which are whatever position that they came from the factory. I will check the manual's wiring! THank you for your response!


   
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(@douglaskeene)
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Joined: 2 months ago
Posts: 9
Topic starter  

Thank you, Bill for responding. Yes switching the S2 switch to the 5V position was key. But first, I did that and did not see any difference. However, staring at the motor shaft, it seemed to be moving microscopically. So I changed the pulses per revolution and the shaft is now moving perfectly! So far, I have been able to generate over 200 inch-lb with the current setup...

Snap31
This post was modified 2 months ago 2 times by douglaskeene

   
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