4.4 Controlling via a fail-safe digital input
4.4.1 Overview
In the factory setting of the inverter, the fail-safe digital inputs are not assigned to the integrated
safety functions. Only when commissioning do you define as to whether, for example, you use
digital inputs DI 4 and DI 5 for the standard functions, or you creates a fail-safe digital input by
combining them.
SIMATIC ET 200pro FC‑2 inverters do not have any directly accessible fail-safe
digital inputs. If you wish to control the safety function of this inverter via a fail-
safe digital input within an ET-200pro station, then you require either an F‑RSM
or F‑Switch module.
Wiring examples according to SIL 2 and PL d (Page 62).
Assignment of the fail-safe digital inputs
Table 4-10 SINAMICS G120C
Terminal strip Digital input Fail-safe digital input
16 DI 4 F-DI 0
17 DI 5
Table 4-11 SINAMICS G120 with CU240E‑2, CU240E‑2 DP or CU240E-2 PN Control Unit
Terminal strip on the Control Unit
Terminals Digital input Fail-safe digital input
16 DI 4 F-DI 0
17 DI 5
Installing
4.4 Controlling via a fail-safe digital input
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
58 Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
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