Siemens SIRIUS 3SK1 Manual page 125

Typical circuits for 3SK1 Standard solid-state basic units or 3SK1 Advanced basic units
Table 7- 8 Typical circuit 8: EMERGENCY STOP two-channel, with cross-circuit detection, with monitored start
Table 7- 9 Typical circuit 9: Two-channel, 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
•
Sensor: 2 NC contacts
•
3SK1112 Standard solid-state and
•
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 62061
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
OFF ON
left right
Up to PL in accordance with ISO
13849-1
Up to Safety Integrity Level (SILCL) to
IEC 62061
Circuit diagrams
7.2 Typical circuits
3 4
ON —
right
e
3
3 4
ON —
right
e
3
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