Siemens SIRIUS 3RK3 Equipment Manual page 111

Internal circuit diagram
Figure 5-16
Terminal designations of the expansion module 8-DI
Terminal
IN1 ... IN8
L+
M
Interfaces of the expansion module 8-DI
Interface
X1
X2
Displays of the expansion module 8-DI
Element
SF / IN1
IN2 ... IN8
Connecting inputs and outputs
You will find further information on connecting inputs and outputs in Chapter "Wiring rules for
inputs and outputs (Page 134)."
SIRIUS 3RK3 Modular Safety System
Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
8-DI internal circuit diagram
Meaning
Sensor inputs
Power supply
Ground
Meaning
System interface
System interface
Meaning
Group error / status of the sensor input
Status of the sensor inputs
Description of the hardware
5.1 Description of the individual modules
Description
Connection for sensors
24 V DC
Ground to 24 V DC
Description
Connection of central unit/expansion module
Connection of expansion module
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