Status Diagrams - Siemens SIRIUS 3SK1 Equipment Manual

INF
INK
T1
T2
Q1
5.2.10.4

Status diagrams

State diagrams 3SK1120-xAB40
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005
Terminal
Feedback circuit
Cascading circuit
Test output 1 (for IN1, PAR)
Test output 2 (for IN2, INF)
Safety-related output 1
(switching to P potential, 24 V DC)
3SK1120-xAB40 Autostart
A1/A2
INF (feedback
circuit)
IN1/IN2
(sensor circuit)
or
INK
Safety-related
outputs
Signaling
output
Explanation
80 ms
30 ms
3SK1 / 3RQ1 devices
5.2 3SK1 Advanced
0 ms
87