Hello everyone! I am currently working on integrating a Micro850 PLC to control a SureStep Stepper drive (DM805-AI) from Automationdirect. I am facing a challenge with the voltage output from the Micro850, as it is 24VDC while the Pulse input to the drive requires sourcing (0V to pulse high). I have come across several solid-state relays capable of cycling at 100kHz, but the only PNP to NPN converter I found from Phoenix is limited to 15kHz. Have any of you encountered a similar issue and if so, what solution did you implement? Your insights are greatly appreciated!
The Continental I.O.-ODC-R0-060 Interface Module: Features and Functions
Apologies for the premature post. Before proceeding, be sure to research the part number to confirm its compatibility. I have utilized numerous times in the past with no complications.
Thank you for the recommendation. Upon further reflection, I recalled using these components 15 years ago in a previous position. Regrettably, they have since been discontinued. Even after reaching out to Power IO, the manufacturer of the original part, I discovered that they too have stopped producing them. The substitute available now is bulkier and only has a frequency rating of up to 20kHz.
After a moment of reflection, I came to the realization that I would be open to exploring other opportunities if they exist.
Looking for spare parts in Chicago? I may have some available to share, but I need to know what you'll do in exchange.
Hey there! I too faced a similar challenge once. I suggest you use optocouplers as a simple and effective solution. They should isolate and convert between voltage levels. With an appropriate circuit design, you'll be able to adapt the PNP outputs for NPN inputs. They're also capable of managing the speed you need. Just ensure to use one which can handle high frequency. I've had success with PC817 optocouplers but choose according to your specific requirement. Good luck and let us know how it pans out!
Hey there! I've encountered a similar problem in the past, but I managed to get around it by using an opto-isolator. Opto-isolators provide galvanic isolation and are great in circuit level shifting applications like yours. Just remember to handle the power dissipation issue properly. Besides, using a pull-up resistor at the output to ensure correct signal levels is a good practice. You may need to test different resistor values to optimize the signal quality as per your requirement. Hopefully, this will help you out with the Micro850 to SureStep issue.
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Answer: The voltage output from the Micro850 PLC is 24VDC, while the Pulse input to the SureStep Stepper drive requires sourcing (0V to pulse high).
Answer: The Pulse input of the SureStep Stepper drive requires sourcing (0V to pulse high) while the Micro850 PLC output is 24VDC, creating a compatibility challenge.
Answer: Solid-state relays capable of cycling at 100kHz were considered, but the only PNP to NPN converter found from Phoenix is limited to 15kHz.
Answer: Professionals have shared their experiences and solutions for addressing the voltage output challenge between the Micro850 PLC and the SureStep Stepper drive in this discussion thread.
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