Siemens SINUMERIK ONE NCU 1740 Equipment Manual page 4

Table of contents
5.1.1 Grounding concept ............................................................................................................ 45
5.1.2 RI suppression measures .................................................................................................... 46
5.1.3 EMC limit values in South Korea ......................................................................................... 47
5.1.4 EMF assessments for 24 V components .............................................................................. 47
5.1.5 EC Declaration of Conformity ............................................................................................. 47
5.2 Climatic and mechanical environmental conditions ............................................................ 47
5.2.1 Shipping and storage conditions ........................................................................................ 47
5.2.2 Operating conditions ......................................................................................................... 49
6 Dimension drawings ............................................................................................................................ 51
6.1 NCU 1740 dimension drawing............................................................................................ 51
7 Installation........................................................................................................................................... 53
7.1 Safety instructions ............................................................................................................. 53
7.2 Designs ............................................................................................................................. 54
7.3 Fix the NCU using spacers .................................................................................................. 55
7.4 Mounting the NCU without spacers .................................................................................... 55
8 Connecting .......................................................................................................................................... 57
8.1 Overview ........................................................................................................................... 57
8.2 Communication services and used port numbers................................................................ 59
8.3 Safety information for wiring ............................................................................................. 62
8.4 Opening the front cover ..................................................................................................... 62
8.5 Power supply ..................................................................................................................... 64
8.5.1 Application ........................................................................................................................ 64
8.5.2 Requirements for the power supply .................................................................................... 68
8.6 DRIVE-CLiQ components .................................................................................................... 69
8.6.1 Application ........................................................................................................................ 69
8.6.2 Connectable DRIVE-CLiQ components ................................................................................ 70
8.7 Use of Ethernet interfaces .................................................................................................. 72
8.8 PROFINET........................................................................................................................... 75
8.9 PROFIBUS DP...................................................................................................................... 77
8.9.1 Application ........................................................................................................................ 77
8.9.2 PROFIBUS cables and connectors ........................................................................................ 79
8.9.3 Connection components in PROFIBUS................................................................................. 80
8.9.4 Rules for the laying of PROFIBUS cables .............................................................................. 80
8.9.5 Connecting PROFIBUS DP ................................................................................................... 81
8.9.6 Disconnecting stations from the PROFIBUS ......................................................................... 82
8.10 Digital inputs/outputs......................................................................................................... 82
8.10.1 DIO application .................................................................................................................. 82
8.10.2 Block diagram .................................................................................................................... 87
8.10.3 Connecting digital inputs/outputs ...................................................................................... 88
8.10.4 Technical data.................................................................................................................... 90
8.11 USB ................................................................................................................................... 91
4
Equipment Manual, 09/2022, A5E51087503B AC
NCU 1740