Table 4-15
SINAMICS G120D with Control Units
CU240D‑2 DP‑F, CU240D‑2 PN‑F, CU240D‑2 PN‑F PP and CU240D‑2 PN‑F FO,
CU250D‑2 DP‑F, CU250D‑2 PN‑F, CU250D‑2 PN‑F PP and CU250D‑2 PN‑F FO
Connector.pin
Digital input
Fail-safe digital inputs
Basic functions Extended func‐
tions
X07.4
DI 0
-
F-DI 0
X07.2
DI 1
X08.4
DI 2
F-DI 1
X08.2
DI 3
X09.4
DI 4
F-DI 0
F-DI 2
X09.2
DI 5
Safety-related signals, e.g. the switching state of a sensor, must be wired to a fail-safe digital
input through two channels. The inverter evaluates the signal on two separate signal paths.
To enable a safety function via the terminal strip of the inverter, you need a fail-safe digital
input.
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For specific default settings of the terminal strip, e.g. default
setting 2, the inverter combines two digital inputs to form one
fail-safe digital input FDI 0.
Which devices are you allowed to connect?
The fail-safe digital input is designed for the following devices:
● Connection of safety sensors, e.g. emergency stop command devices or light curtains.
● Connection of pre-processing devices, e.g. fail-safe control systems and safety relays.
Signal state
The inverter expects signals with the same state at its fail-safe digital input:
● High signal: The safety function is deselected.
● Low signal: The safety function is selected.
Installing
4.4 Controlling via a fail-safe digital input
Safety Integrated - SINAMICS G110M, G120, G120C, G120D and SIMATIC ET 200pro FC-2
60
Function Manual, 01/2017, FW V4.7 SP6, A5E34261271B AD
