S7-300 I/O Modules - Siemens SINAMICS G120 Function Manual

Activation
3.2 Activation via F-DI
3.2.3.4

S7-300 I/O modules

Fail-safe outputs that switch to P potential are required for activating the fail-safe digital
inputs of the SINAMICS G120. Of the S7-300 range, only the SM326 DO 10 x 24 V / 2 A PP
I/O module fulfills this requirement.
The diagrams only show how the I/O module and inverter are interconnected. Information
providing full details of how the I/O module is wired can be found in the product-specific
documentation: S7-300
(http://support.automation.siemens.com/WW/view/en/10805159/133300).
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 SM326 I/O module 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 3-13
54
Interconnecting the inverter and SM326 I/O module within the same control cabinet
Safety Integrated Function Manual, SINAMICS G120
Function Manual, 07/2010, FW 4.3.2, A5E03052391B AA