Recent content by lmeb83

Hello, I am looking some help with a rule of thumb or a quick way to size a circuit breaker for an enclosure that has the following power supplies. These PSU are for an HMI, a PLC and two stepper drives. Thank you. PSU Inrush Current Max Input Current (A) Recommended Circuit Breaker...

Anybody with experience on Automation Direct PLCs ? I am trying to do this project using a PLC and HMI from AD. If possible, I would like to use the same stepper motor kit, because it is a Nema 34 and is closed loop. I have a stepper drive STP-DRV-80100, a stepper motor STP-MTRH-34127, but I am...

We mainly use to control stepper motors. We produce custom orders, and this setup will help to find the angles quickly and reduce scrap rate.

Thank you Willy. Yes, I moved the arduino inside the keypad enclosure.

Thank you for all your suggestions and input. It's working good now. I moved the arduino away from the stepper drivers and the power supply. I used shielded wires, expansion shield for the arduino, I changed the keyboard, changed the enclosure from carbon fiber to abs.

I’ve used one of these in a permanent project https://www.seeedstudio.com/Base-Shield-V2.html You also need their cables. I use the longer ones and cut them so I have a connector on one end. A simple inline splice and you have a good reliable connection. My preference though, is to use the...

Thank you for the advice. I am new on doing this kind of projects, this is the first time I hear abour Ferrite beads. I am using 28 AWG jumper wires. 8 for the keypad. Do I have to put a Ferrite bead on each one of the 8 wires? Just on the end that connect to the arduino? Where can I get those...

Thank you Willy. The Arduino Shield is a good idea. I'll get one.

You are right. I'll continue trying to fix the minor problem while I move to the PLC. Should I wrap with aluminum foil everyone of the 16 wires that I have connected to the arduino? O just the 8 from the keypad. Just wrapping the 8 seems difficult to achieve.

Thank you Ray. Is there any tutorial I can follow on what OPTO isolators ti use and how to connect them? I have most of DIGITAL (PWM) pins connected. 2 and 3 connected to one stepper driver, 4 to 11 connected to the KEYPAD, and 12, 13 connected to the other stepper driver. And the ANALOG IN 5V...

Thank you guys for your input. I have decided to replace the arduino with a Controllino PLC and use a C-More instead the keypad and the LCD. I have never worked with PLCs , C-more, or modbus protocol. But I will do some research and learn. The other option I was thinking is to use a Click PLC...

I finished a prototype that is almost working well. When I was testing it in production, it started working well, but after 2 or 3 minutes, when no key is pressed it still shows a random keypress on the LCD or the keypad freezes and I have to unplug and plug the electrical box again. I...

Bruce, Thank you, for your help. I had been reading, and trying different wirings, modifying the sketch. I believe the sketch was not working because it was for a Pololu that only has one STEP and one DIR. Since I am using an HBS860H, I had to modified the sketch. I don't know if I am going...

Bruce, I am using an HBS860H Hybrid servo drive and I am having issues with the rotation of the stepper. It rotates to the same direction. I am pretty sure I am not wiring it correctly. I have tried different connections but haven't been successful. This is the code I am using. Thank you, Miguel