Siemens NCU 7x0.3 PN Series Manual page 108

Connectable components
9.2 PP 72/48D PN
Digital inputs
● Characteristics:
● Terminal assignment for the digital inputs:
● Internal power supply (P24OUT):
108
– X222: Inputs 3.0 to 3.7 are connected as rapid inputs; this means the input filter has a
max. delay time of 600 μs.
– The inputs have no signaling (status LEDs).
– The inputs are not isolated.
– It is not possible to connect 2-wire BEROs.
The following figure shows an example of the terminal assignment for the digital inputs on
connector X111. Connectors X222 and X333 are assigned analogously.
①
when using the internal power supply P24OUT
②
when using an external power supply P24OUT
Figure 9-11 Terminal assignment for the digital inputs
The internal power supply for the digital inputs (X111, X222, X333: Pin 2) is derived from
the general power supply of module X1, pin 2 (P24).
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Manual, 09/2011, 6FC5397-1EP40-0BA0
NCU 7x0.3 PN