Siemens SIRIUS 3SK1 Equipment Manual page 218

Circuit diagrams
14.3 Typical circuits
Note
Single-channel connection
If only one single-channel sensor is used, the other sensor circuit must be jumpered.
Table 14-12 Typical circuit 12: 2 x single-channel, without cross-circuit detection, with monitored start
218
• Monitored start
• Without cross-circuit detection
• 2 x single-channel
• Sensor: 2 x single-channel NC sensors
• 3SK1112 Standard solid-state and
3SK112 / 3SK122 Advanced
DIP switch
1 2
ON OFF
Right Left
Up to PL in accordance with ISO 13849-1 c
Up to Safety Integrity Level (SILCL) to
IEC 62061
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005
3 4
OFF —
Left
1