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Wiring an isolated barrier pepperl + fuchs

Wiring an isolated barrier pepperl + fuchs

How to Wire a Signal Barrier Like a Pro!

Ever stared at a signal barrier terminal board and thought, “Umm… where do I even start?” Yeah, we’ve all been there. In this video, I break down the wiring process step-by-step, making it super easy even if you’re just getting into instrumentation or control panels.

We’ve got a clear layout:

  • Power up terminals 14 (+) and 15 (–)
  • Inputs go to terminals 1, 2, and 3 (2 = –, 3 = +)
  • Outputs? Channel 1 on terminals 7-9 (48+ / 49–) and Channel 2 on 10-12 (10+ / 11–)

Quick voltage check

  • Output 1: 8.9V
  • Output 2: 8V (but hey—it should be 8.9V too… might need a closer look )

This setup is especially useful when you’re dealing with loop-powered instruments and need galvanic isolation between your field devices and the control system.

Whether you’re an engineer, a technician, or just someone who loves clean wiring—this is for you!

Liam Siahtiri

Liam Siahtiri

I’m passionate about PLCs and industrial automation, with a focus on complex programming, communication protocols, and SCADA systems. My goal is to develop practical, project-based training to fill the gap in industry education and give back to the field that shaped my growth. I hold a Master’s degree in Electrical Power Engineering.
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