Siemens SIRIUS 3RK3 Equipment Manual page 107

Internal circuit diagram
Figure 5-14
Terminal designations of the expansion module 4F‑DO
Terminal
Q1, Q2, Q3,
Q4
L+
M, 1M, 2M
Interfaces of the expansion module 4F-DO
Interface
X1
X2
Displays of the expansion module 4F-DO
Element
SF/Q1
Q2, Q3, Q4
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
4F‑DO internal circuit diagram
Meaning
Safety-related semiconduc‐
tor outputs
Power supply
Ground
Meaning
System interface
System interface
Meaning
Group error / state of the semiconductor outputs
State of the semiconductor outputs
Description of the hardware
5.1 Description of the individual modules
Description
Two-channel semiconductor outputs for connecting ac‐
tuators
24 V DC
Ground to 24 V DC
Description
Connection of central unit/expansion module
Connection of expansion module
107