Siemens SIRIUS 3SK1 Manual page 129

Typical circuits for 3SK1 Advanced basic units only
Table 7- 14 Typical circuit 14:
1NC/1NO sensor, with cross-circuit detection, with monitored start
Table 7- 15 Typical circuit 15:
1NC/1NO sensor, with cross-circuit detection, with autostart
SIRIUS 3SK1 safety relays
Manual, 06/2018, A5E02526190021A/RS-AD/004
Monitored start
•
With cross-circuit detection
•
1 x two-channel
•
Jumper T1/PAR for NC/NO evaluation
•
Sensor: NC/NO sensor
•
3SK112/3SK122 Advanced
•
DIP switch
1 2
ON ON
right right
Up to PL in accordance with ISO
13849-1
Up to Safety Integrity Level (SILCL) to
IEC 61508
Autostart
•
With cross-circuit detection
•
1 x two-channel
•
Jumper T1/PAR for NC/NO evaluation
•
Sensor: NC/NO sensor
•
3SK112/3SK122 Advanced
•
DIP switch
1 2
OFF ON
left right
PL in accordance with ISO 13849-1
Safety Integrity Level (SILCL) to
IEC 61508
Circuit diagrams
7.2 Typical circuits
3 4
ON —
right
e
3
3 4
ON —
right
e
3
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