Relay Control System (Normally Open,Held close)

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SUMMARY

The discussion centers on the operation of limit switches in a sequential control circuit, specifically focusing on Normally Open (NO) and Held Closed (HC) configurations. The user seeks clarification on the functionality of these switches in the context of a pneumatic cylinder, where the cylinder's positions are denoted as a0 (retracted) and a1 (fully extended). The conversation highlights the importance of providing schematic diagrams for better understanding and troubleshooting of control systems.

PREREQUISITES
  • Understanding of limit switch configurations (Normally Open, Held Closed)
  • Basic knowledge of pneumatic systems and cylinder operations
  • Familiarity with sequential control circuits
  • Ability to interpret schematic diagrams
NEXT STEPS
  • Research the operation of limit switches in pneumatic systems
  • Learn about the design and implementation of sequential control circuits
  • Study the principles of pneumatic cylinder positioning
  • Explore schematic diagram creation tools for control systems
USEFUL FOR

Engineers, technicians, and students working with pneumatic systems, control circuit designers, and anyone involved in automation and control technology.

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Hi guys, currently i am stuck with the limit switches in the sequential control circuit.

the Normally open,heldclosed, Normally closed,held open , normally closed and normnally open.

Let's say if bo is NO,HC. so the switch will be normally open then once bo is actuated then the switch will be closed?
 
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Hi stags! Welcome to Physics Forums!

I cannot understand your question from what you've written. What's "bo" What application is the sequential control circuit being used in? Is there a schematic diagram at some website? Is there a manual of operation with a simple theory of operation?

If you post a diagram of your thought problem members here may be able to assist you.

Bobbywhy
 
Hi bobbywhy,

I am talking about pneumatic cylinder so when the cylinder is at retract position it is at the a0 position, when it is at the fully extended position then it will be a1.

The alphabet doesn't matter.
 

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