Siemens SIRIUS 3RK3 - Expansion Module 4 F-DO

5.1.12 Expansion module 4F-DO
Properties
With the expansion module 4F‑DO, the 3RK3 central unit can be expanded with further safety-
related outputs. It can be used up to SIL 3 per EN 61508 and PL e/Cat. 4 per EN ISO 13849-1.
• Parameterization is performed using the 3RK3 central unit with Safety ES software.
• Additional expansion modules can be connected to the expansion module 4F-DO.
Inputs and outputs
The 4F-DO expansion module has the following outputs:
• 4 safety-related two-channel semiconductor outputs
Structure of the expansion module 4F-DO
Front view No. Meaning
6)44
44
444
/00
40
5.$$
)'2








① Removable terminal block D
② Removable terminal block C
③ System interface (X2)
④ Label
⑤ Removable terminal block A
⑥ Removable terminal block B
⑦ Display LEDs
⑧ System interface (X1)
Description of the hardware
5.1 Description of the individual modules
SIRIUS 3RK3 Modular Safety System
106 Equipment Manual, 07/2020, NEB926253002000/RS-AC/006