3 Product description
This chapter provides information on the operation of the safety light curtain and shows
e
xamples of its range of use.
3.1 Structure and function
Overview
T
he deTec4 Core safety light curtain is an electro-sensitive protective device (ESPE) con‐
sisting of a sender and receiver.
A series of parallel infrared light beams form a protective field between sender and
receiver that protects the hazardous area (hazardous point, access, and hazardous
area protection). When one or more beams are completely interrupted, the safety light
curtain reports the interruption in the light path to the secure output signal switching
devices (OSSDs) by a signal change. The machine or its control must safely analyze the
signals (for example using a safe control or safety relays) and stop the dangerous state.
Sender and receiver automatically synchronize themselves optically. An electrical con‐
nection between both components is not required.
Figure 1: Sender and receiver
PRODUCT DESCRIPTION 3
8014253/ZOH3/2017-08-04 | SICK O P E R A T I N G I N S T R U C T I O N S | deTec4 Core
11
Subject to change without notice
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