Siemens SIRIUS 3SK1

Product overview for 3SK1
3.5 3SK1 system
3SK1 safety relays
26 Manual, 04/2013, A5E02526190021A/RS-AA/01
3.5.2 Advanced
3.5.2.1 Typical system configuration
System configuration for 3SK1 Advanced
A 3SK1 Advanced system can comprise the following devices:
● Basic units (one basic unit per system)
– Basic unit 3SK1121 Advanced relay instantaneous (see also 3SK1121 Advanced
basi
c unit instantane
ous (with relay outputs) (Page 60) )
– Basic unit 3SK1121 Advan
ced relay time-delayed (see also 3SK1121 Advanced basic
unit time-delayed (with relay outputs) (Page 63) )
– Basic u
nit 3SK1122 Advan
ced solid-state instantaneous (see also 3SK1122 Advanced
basic unit instantane
ous (with solid-state outputs) (Page 67) )
– Basic unit 3SK1122 Advan
ced solid-state time-delayed (see also 3SK1122 Advanced
basic unit time-delayed (with solid-s
tate outputs) (Page 71) )
– Basic unit 3SK1120 Advan
ced 17.5 mm solid-state instantaneous (see also 3SK1120
Advanced bas
ic unit instantaneous (with solid-state outputs) (Page 75) )
● Input expansions
–
Power supply 3SK1230 (see also Power supply 3SK1230 (Page 91) )
–
Input expansion 3SK122
0(see also Input expansion 3SK1220 (Page 87) )
● Output expansions
– Output expan
sion 3SK1211 (see also Output expansion 3SK1211 (Page 80) )
–
Output expansion 3SK1213 (se
e also Output expansion 3SK1213 (Page 84) )
● Device connector (option
al) (see also 3ZY12 device connector (Page 98) )
The devices are connected by means o
f device connectors or wiring.