Contact Us

If you still have questions or prefer to get help directly from an agent, please submit a request.
We’ll get back to you as soon as possible.

Please fill out the contact form below and we will reply as soon as possible.

  • Contact Us
  • Home

Why do I need a Safety Relay in my safety circuit?

Written by Brett Hook

Updated at October 18th, 2024

Contact Us

If you still have questions or prefer to get help directly from an agent, please submit a request.
We’ll get back to you as soon as possible.

Please fill out the contact form below and we will reply as soon as possible.

  • Products
    Automation Systems Control Components Motion & Drives Quality control & Inspection Robotics Safety Sensing Services Software Switching Components
  • Amplify e-Store
    e-Store public
  • Public CSC
+ More

Question:

When designing a safety circuit for a machine, why should we use a Safety Relay instead of a non-safety relay?

 

Answer:

The action of a Safety Relay involves a forcibly-guided mechanism, which prevents the dual channel contact points from being in operating states at the same time, in the event of a welded contact. This also allows the Safety Relay to detect if contact welding has occurred within the relay itself.

A standard non-safety relay does not have this functionality.

Note that merely using a Safety Relay does not make a circuit ‘safe’, proper safety design, redundancy and self-monitoring functionality must all be combined to create a safety circuit for a machine. Please contact your Omron representative for further information.

safety circuit safety relay

Was this article helpful?

Yes
No
Give feedback about this article

Related Articles

  • Using CIP to Read/Write Network Variables with NJ/NX
  • Which OMRON PLCs can perform Modbus Communications

Definition by Author

0
0
Expand