Siemens SIRIUS 3SK1

Circuit diagrams
7.2 Typical circuits
3SK1 safety relays
118 Manual, 04/2013, A5E02526190021A/RS-AA/01
Table 7- 9 Typical circuit 9: Two-channel, with cross-circuit detection, with autostart
• Autostart
• With cross-circuit detection
• 1 x two-channel
• Sensor: 2 NC contacts
• 3SK1112 Standard solid-state and
3SK112 / 3SK122 Advanced
DIP switch
1 2 3 4
OFF
left
ON
right
ON
right
—
Up to PL in accordance with ISO
13849-1
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Up to Safety Integrity Level (SILCL) to
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Table 7- 10 Typical circuit 10:
Electronic sensor, 2-channel, without cross-circuit detection, with monitored start
• Monitored start
• Without cross-circuit detection
• 1 x two-channel
• Sensor: 2-channel non-floating
• 3SK1112 Standard solid-state and
3SK112 Advanced
DIP switch
1 2 3 4
ON
right
OFF
left
ON
right
—
Up to PL in accordance with ISO
13849-1
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