4.3.3
Protection against interference from systems in close proximity to each other
Overview
s
r
s
r
!
"
Figure 9: Preventing mutual interference from system
1
and system
2
The infrared light beams of the sender of system
1
can interfere with the receiver of
system
2
. This can disrupt the protective function of system
2
. This would mean that
the operator is at risk.
Avoid such installation situations or take appropriate action, e.g., install optically
opaque partitions or reverse the direction of transmission of a system.
Important information
DANGER
Hazard due to lack of effectiveness of the protective device
Systems of multiple light beam safety devices in close proximity to each other can
mutually interfere with each other.
b
Use suitable measures to prevent interference between systems in close proximity
to each other.
4.3.3.1
Using reversed direction of transmission
The direction of transmission of the system
"
can be changed during mounting by
switching the positions of the sender and receiver. With reversed direction of mounting,
the receiver
"
is not affected by the infrared light from the sender
!
.
"
!
s
s
s
s
s
s
s
s
s
s
s
s
s
s
s
r
s
r
Figure 10: Trouble-free operation due to reversed direction of transmission of system
1
and sys‐
tem
2
4.4
Integrating into the electrical control
This chapter contains important information about integration in the electrical control.
Information about the individual steps for electrical installation of the device:
.
PROJECT PLANNING
4
8020453/14Q7/2020-04-27 | SICK
O P E R A T I N G I N S T R U C T I O N S | deTem4 Core
19
Subject to change without notice
