Siemens SIRIUS 3SK1, Manual, Page: 23 / 262

Product overview for 3SK1
3.3 Functional scope of the 3SK1 basic units
3SK1 safety relays
Manual, 04/2013, A5E02526190021A/RS-AA/01
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3.3 Functional scope of the 3SK1 basic units
Function 3SK1 Standard 3SK1 Advanced
Type of enabling circuits
Relay Solid-state Relay Solid-state
Sensors
Mechanical sensors ✓ ✓ ✓ ✓
Non-floating sensors ✓ ✓ ✓ ✓
Antivalent sensors Not possible Not possible ✓ ✓
Sensor number can be increased Not possible Cascading only ✓ ✓
Parameters
Type of start (autostart/monitored start) ✓ ✓ ✓ ✓
Sensor connection 2x single-channel /
1x two-channel
Using wiring ✓ ✓ ✓
Cross-circuit detection OFF / ON Using wiring ✓ ✓ ✓
Start-up test OFF / ON No start-up test ✓ ✓ ✓
Monitoring of two-hand control units No No ✓ ✓
Enabling circuits
Instantaneous ✓ ✓ ✓ ✓
Time-delayed None None ✓ ✓
Expandable with relay enabling circuits Using wiring Using wiring ✓ ✓
Device connector Cannot be used Cannot be used ✓ ✓
Rated control supply voltage
24 V DC ✓ ✓ ✓ ✓
110 ... 240 V AC/DC ✓ Not possible ✓
1)
✓
1)
1)
Possible using 3SK1230 power supply and device connector