3Rk3 Modular Safety System - Siemens SINAMICS G120 Function Manual

Activation
3.2 Activation via F-DI
3.2.3.3

3RK3 Modular Safety System

You can use both the fail-safe outputs in the MSS Basic central unit of the 3RK3 Modular
Safety System as well as the outputs in the EM 2/4F-DI 2F-DO expansion module to activate
the F-DIs of the inverter.
The fail-safe relay outputs of the EM 2/4F-DI 1/2F-RO expansion module must not be used
because these only have a single-channel configuration.
The diagrams only show how the 3RK3 Modular Safety System and inverter are
interconnected. Information providing full details of how the 3RK3 Modular Safety System
are wired can be found in the product-specific documentation: SIRIUS 3RK3 Modular Safety
System (http://support.automation.siemens.com/WW/view/en/26412499/133300).
Components in the same control cabinet
A control cabinet that has been set up and wired correctly does not contain any damaged
wiring or cross circuits.
You may interconnect the Modular Safety System and inverter within the same control
cabinet by means of a single-channel wiring arrangement. The two terminals of the fail-safe
input must be connected to each other on the inverter.
Figure 3-11
52
Interconnecting the inverter and Modular Safety System within the same control cabinet
Safety Integrated Function Manual, SINAMICS G120
Function Manual, 07/2010, FW 4.3.2, A5E03052391B AA