Siemens SIRIUS 3SK1

3SK1 devices
5.2 3SK1 Advanced
3SK1 safety relays
62 Manual, 04/2013, A5E02526190021A/RS-AA/01
5.2.6.4 Terminal assignment
Terminal Explanation
A1 +
A2 -
IN1 Sensor channel 1
IN2 Sensor channel 2
PAR NO contact/NC contact evaluation
INS START pushbutton circuit
INF Feedback circuit
INK Cascading circuit
T1 Test output 1 (for IN1, PAR)
T2 Test output 2 (for IN2, INF)
13 - 14
23 - 24
33 - 34
Enabling circuits (NO, relay contact)
41 - 42 Signaling circuits (NC, relay contact)
State diagram 3SK1121
INF (feedback)
A1/A 2
Enabling
circuits
Signaling
circuit
3SK1121-xAB40 autostart
InputsOutputs
IN1/IN2 (sensor
circuit)
or
INK
85 ms
35 ms
35 ms