Important information
DANGER
H
azard due to lack of effectiveness of the protective device
Systems of safety light curtains in close proximity to each other can mutually interfere
with each other.
b
Use appropriate measures to prevent systems in close proximity from interfering
with each other.
4.3.4.1 Using reversed direction of transmission
Using reversed direction of transmission
T
he direction of transmission of the system 2 can be changed during mounting by
switching the positions of the sender and receiver. With reversed direction of mounting,
the receiver 2 is not affected by the infrared light from the sender 1.
Figure 13: Trouble-free operation due to reversed direction of transmission of system
1
and
system
2
4.4 Integration in electrical control
Overview
T
his chapter contains important information about integration in the electrical control.
Information about the individual steps for electrical installation of the device: see
"Electrical installation", page 42.
Important information
DANGER
H
azard due to lack of effectiveness of the protective device
In the case of non-compliance, it is possible that the dangerous state of the machine
may not be stopped or not stopped in a timely manner.
b
Make sure that the following control and electrical requirements are met so that
the product can fulfill its protective function.
Requirements for use
T
he output signals of the protective device must be analyzed by downstream controllers
in such a way that the dangerous state of the machine is ended safely. Depending
on the safety concept, signal evaluation is carried out e.g. with safety relays or with a
safety controller.
•
It mus
t be possible to electrically influence the control of the machine.
•
The electrical control of the machine must meet the requirements of IEC 60204-1.
4 P
ROJECT PLANNING
22
O P E R A T I N G I N S T R U C T I O N S | deTec4 Core Ex II 3GD 8021796/1DCM/2022-10-27 | SICK
Subject to change without notice
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