Siemens SINUMERIK 840D sl Equipment Manual page 113

• Internal power supply (P24OUT):
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).
• Technical data:
Table 9-24
Digital inputs
High-level voltage (U
Input current I
Low-level voltage (U
Signal delay time T
NCU 7x0.3B PN
Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1
Electrical specification of the digital inputs:
)
H
at V
IN H
)
L
PHL
Connectable components
min. max.
15 V 30 V
2 mA 15 mA
-3 V 5 V
0.5 ms 3 ms
9.2 PP 72/48D PN
Nominal
24 V
-
0 V
-
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