Siemens Sirius 3RK3 System Manual page 56

Description of the hardware
5.1 Description of the individual modules
Terminal designations of the 4/8F-RO expansion module
Terminal
Q1.1, Q1.2
Q2.1, Q2.2
Q3.1, Q3.2
Q4.1, Q4.2
Q5.1, Q5.2
Q6.1, Q6.2
Q7.1, Q7.2
Q8.1, Q8.2
L+
M
Interfaces of the expansion module 4/8F-RO
Interface
X1
X2
Operator controls and displays of the expansion module 4/8F-RO
Element
SF/Q1
Q2 ...Q8
Connecting inputs and outputs
You can find more information on connecting inputs and outputs in the section Connecting
safety-related inputs and outputs (Page 69).
54
Meaning
Safety-related relay output
Safety-related relay output
Safety-related relay output
Safety-related relay output
Safety-related relay output
Safety-related relay output
Safety-related relay output
Safety-related relay output
Power supply
Ground
Meaning
Interface
Interface
Meaning
Group error / relay output
Relay outputs
Description
Isolated output for connecting actuators
24 V DC
Ground to 24 V DC
Description
Connection of central unit/expansion module
Connection of expansion module
System Manual, 10/2008, 926 2530-02 DS 02
Modular Safety System 3RK3