Table 5: Maximum number of safety switches in a series connection depends on the voltage
Voltage Connection cables,
unif
orm for the entire
series connection
Input voltage at 30th
safety switch
Maximum number of
safety switches in
series connection
24 V Length: 2 m
C
able cross-section:
0.25 mm²
17.8 V 24
26.8 V 19.2 V 30
Complementary information
T
he number of safety switches in a series connection influences the response time of
the system (see "Response time and release time in a safe series connection",
page 39).
Further topics
•
"Safe series connection with Flexi Loop (with diagnostics)", page 16
•
"Safe series connection with T-connector (without diagnostics)", page 17
•
"Safe series connection in control cabinet (with diagnostics)", page 18
4.4.3.1 Safe series connection with Flexi Loop (with diagnostics)
Prerequisites
•
S
afety switch with male connector, M12, 5-pin
or
•
S
afety switch with male connector, M12, 8-pin
Construction
T
he safe series connection can be created using Flexi Loop nodes.
Figure 5: Safe series connection with Flexi Loop nodes
1
Flexi Soft safety controller
2
Connecting cable with female connector, M12, 5-pin
3
FLN-OSSD1000105 Flexi Loop node
4
FLN-EMSS1100108 Flexi Loop node
5
Connection cable with male connector, M12, 5-pin and female connector, M12, 5-pin
6
Connection cable with male connector, M12, 8-pin and female connector, M12, 8-pin
7
STR1 safety switch
8
Safety locking device
9
FLT-TERM00001 Flexi Loop terminating element
4 PROJECT PLANNING
16
O P E R A T I N G I N S T R U C T I O N S | STR1 8018754/12IU/2020-01-30 | SICK
Subject to change without notice
To Next Page
Loading...
