Siemens SIRIUS 3RK3 - Page 59

Description of the hardware
5.1 Description of the individual modules
Modular Safety System 3RK3
System Manual, 10/2008, 926 2530-02 DS 02
57
Design of the expansion module 8DO
Front view No. Meaning
(1) Removable terminal block D
(2) Removable terminal block C
(3) Interface X2
(4) Inscription label
(5) Removable terminal block A
(6) Removable terminal block B
(7) Display LEDs
4)444
4444
444
444
/00
440
5.$$
'2








(8) Interface X1
Terminal designations of the expansion module 8DO
Terminal Meaning Description
Q1 ...Q8 Solid-state outputs Semiconductor outputs (non safety related)
L+ Power supply 24 V DC
M Ground Ground to 24 V DC
System interfaces of the expansion module 8DO
Interface Meaning Description
X1 Interface Connection of central unit/expansion module
X2 Interface Connection of expansion module
Displays of the expansion module 8DO
Element Meaning
SF/Q1 Group error / solid-state output
Q2 ...Q8 Semiconductor outputs (non safety related)
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).