SICK deTec4 Core

Important information
DANGER
H
azard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of non-
observance.
b
Make sure that the following construction requirements are met so that the safety
light curtain can fulfill its protective function.
°
Sender and receiver must be arranged such that persons or parts of the body
are reliably detected when they enter the hazardous area.
°
Reaching under, over, and around as well as moving the safety light curtain
must be prevented.
°
Check whether additional safety measures (e.g. restart interlocking) are nec‐
essary when it is possible for people to be located between the protection
system and the danger point without being detected.
Further topics
•
"Mount
ing", page 31
4.3.1 Scanning range and protective field width
Important information
DANGER
H
azard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of non-
observance.
b
The safety light curtain can only be mounted on machines on which the protective
field width does not change when the safety light curtain is switched on.
Scanning range
T
he scanning range limits the maximum protective field width. The protective field width
cannot change during operation.
The scanning range is reduced by using deflector mirrors and/or a weld spark guard.
Protective field width
T
he protective field width is the dimension of the light path between sender and
receiver.
The protective field width is automatically calibrated when the safety light curtain is
switched on during initialization and must not be changed during operation.
Further topics
•
"T
echnical data", page 57
•
"Deflector mirrors", page 68
•
"Weld spark guard", page 67
4.3.2 Minimum distance from the hazardous point
Overview
A minimum dis
tance must be maintained between the safety light curtain and the haz‐
ardous point. This distance is required to prevent a person or part of their body from
reaching the hazardous point before the end of the machine’s dangerous state.
4 PROJECT PLANNING
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O P E R A T I N G I N S T R U C T I O N S | deTec4 Core 8014253/ZOH3/2017-08-04 | SICK
Subject to change without notice