SICK miniTwin4 User Manual

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.
°
Twin sticks must be arranged such that persons or parts of the body are reli‐
ably 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 interlock) are neces‐
sary when it is possible for people to be located between the protective
device and the danger point without being detected.
DANGER
H
azard due to lack of effectiveness of the protective device
Certain types of light radiation can influence the protective device, e.g., light radiation
from fluorescent lamps with electronic ballast installed in the path of the beam, or
beams from laser pointers directed at the receiver unit of a twin stick.
b
If this type of light radiation is present in the environment of the protective device,
take additional measures to ensure that the protective device does not become
dangerous.
Further topics
•
"Mount
ing", page 44
4.3.1 Scanning range and protective field width
Important information
DANGER
Hazard 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 scanning range is reduced by the use of deflector mirrors and/or a weld spark
guard.
Protective field width
T
he protective field width is the dimension of the light path between the twin sticks of a
system.
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 | miniTwin4 8012624/10OM/2018-08-09 | SICK
Subject to change without notice

SICK miniTwin4 Specifications

General

Brand	SICK
Model	miniTwin4
Category	Security Sensors
Language	English