Evaluating Via F-Do; Safety Output - Siemens SINAMICS G120 Function Manual

4.4

Evaluating via F-DO

4.4.1

Safety output

In the factory setting of the inverter, the safety output is assigned to none of the integrated
safety functions. Only when commissioning do you define whether you use, for example, the
two digital outputs for standard functions, or you combine them to create a safety output.
Table 4- 12
SINAMICS G120D with Control Unit
Table 4- 13
SINAMICS G120 with Control Unit
Most applications require NO contacts for a safety output.
If your application requires it, instead of NO contacts, you can also use the two NC contacts of the
inverter. The safe state of the output is always the quiescent state of the two relays.
What devices can be connected?
The safety output is designed for the following devices:
● Direct connection of a safety input.
● Connection of two relays.
The two signals of the safety output each have the same state:
● High signal or NO contact closed: Safety output is active.
● Low signal or NO contact open: Safety output is not active.
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
Function Manual, 04/2014, FW V4.7, A5E34261271B AA
inverters for cabinet-free installation (IP65)
CU240D-2 DP-F
CU240D-2 PN-F
CU240D-2 PN-F PP
CU250D-2 DP-F
CU250D-2 PN-F
CU250D-2 PN-F PP
Inverter for installation in a control cabinet (IP20)
CU250S-2
CU250S-2 DP
CU250S-2 PN
CU250S-2 CAN
Connector. Digital
Pin output
X5.4 DO 0
X5.2 DO 1
X5.3 2M
Terminal Digital
strip output
18: NC DO 0
19: NO
20: COM
23: NC DO 2
24: NO
25: COM
Installing
4.4 Evaluating via F-DO
Safety Read back
output input
F-DO 0 X9.2 DI 5
Safety Read back
output input
F-DO 0 67 DI 6
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