Siemens SINUMERIK ONE NCU 1740 - Connecting; Interface Overview; X1 Power Supply

12.2.3 Connecting
12.2.3.1 Interface overview
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Figure 12-10 I/O module connection options
Table 12-12 PP 72/48D PN I/O module interfaces
Interface Designation Type
Power supply connection X1 Screw-terminal block
PROFINET IO X2 (ports 1 and 2) Socket
PROFINET address S1 DIP switch
Digital input/outputs 1 X111 Ribbon cable connector
Digital input/outputs 2 X222 Ribbon cable connector
Digital input/outputs 3 X333 Ribbon cable connector
12.2.3.2 X1 power supply
Properties
This interface is intended exclusively for the connection of the external 24 V power supply.
On the module side, the power supplies are protected against:
• Polarity reversal
• Short-circuit (elec. current limitation of the outputs)
• Overload (self-restoring PTC fuse - Multifuse)
Connectable components
12.2 PP 72/48D PN
NCU 1740
114 Equipment Manual, 10/2021, A5E51087503B AA