Siemens SIRIUS 3SK1

State diagrams 3SK1111
INF (feedback
circuit)
Inputs
IN1/IN2
(sensor circuit)
Safety-related
output
Semiconductor
signaling
circuit
outputs
3SK1111-xAB30 autostart
200 ms 8 ms
90 ms65 ms
A1/A2
3SK1111-xAB30 monitored start
IN1/IN2
(sensor circuit)
Inputs
INF/S
(feedback circuit)
Safety-related
output
Semiconductor
signaling
circuit
outputs
8 ms
150 ms
15 ms
65 ms
A1/A2
20 ms
3SK1 / 3RQ1 devices
5.1 3SK1 standard
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
58 Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005