Siemens SIRIUS 3SK1

Circuit diagrams
7.2 Typical circuits
3SK1 safety relays
Manual, 04/2013, A5E02526190021A/RS-AA/01
117
Table 7- 7 Typical circuit 7:
Sensors with solid-state outputs, without cross-circuit detection, with autostart
• Autostart
• Without cross-circuit detection
• Sensor: 2-channel non-floating
• 3SK1111 Standard relay
Slide switch
Auto Monitored
ON
top
—
Up to PL in accordance with ISO
13849-1
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Up to Safety Integrity Level (SILCL) to
IEC 62061
3
Typical circuits for 3SK1 Standard solid-state basic units or 3SK1 Advancedbasic units
Table 7- 8 Typical circuit 8: EMERGENCY STOP two-channel, with cross-circuit detection, with monitored start
• Monitored start
• 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
ON
right
ON
right
ON
right
—
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13849-1
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Up to Safety Integrity Level (SILCL) to
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