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Light Curtains
Safety Measures
Safety Device Safety Measue Categories
Identification of Risk Sources
Three Key Points for Protection Against Mechanical Hazards
Grounding Instructions by Output Form (NPN/PNP)
Basic Safety Circuit Concepts
Safety Regulations
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Calculation Example of Safe Distance
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Basic Safety Circuit Concepts
When designing a safety circuit, the following points need to be taken into consideration.
What happens if the circuit is disconnected?
What happens if the circuit is disconnected and grounded?
What happens if it short-circuits?
* Depending on the circuit, there are some failure modes which need to be taken into consideration.
For example, below is a basic circuit which satisfies all three points above.

Correct Circuit
Circuit diagram of a correct safety circuit

More on this topic...
-> A Desktop Reference for Sensors, Vision Systems and Measuring Instruments. General Catalog
-> Create Multiple Safety Zones
Use corner mirror units that can be used with a Safety Light Curtain to create multiple safety zones.		 SL-M Guide
Quick Introduction Guide
A beginner's guide to safety light curtain
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