Siemens SINAMICS S120 Equipment Manual page 17

6.3 24 V DC supply voltage ............................................................................................................. 6-7
6.3.1 General ...................................................................................................................................... 6-7
6.3.2 Selection of power supply units ................................................................................................. 6-8
6.3.3 Typical 24-V component power consumption............................................................................ 6-9
6.3.4 Overcurrent protection ............................................................................................................. 6-10
6.4 Arrangement of components and devices ............................................................................... 6-13
6.4.1 General .................................................................................................................................... 6-13
6.4.2 Drive line-up ............................................................................................................................. 6-13
6.5 Information about electromagnetic compatibility (EMC) and cable laying............................... 6-17
6.5.1 General .................................................................................................................................... 6-17
6.5.2 Cable shielding and laying ....................................................................................................... 6-17
6.5.3 Equipotential bonding .............................................................................................................. 6-19
6.6 Connection methods ................................................................................................................ 6-20
6.6.1 Spring-loaded terminals/screw terminals................................................................................. 6-20
6.6.2 Motor connector ....................................................................................................................... 6-22
6.6.3 24-V terminal adapter .............................................................................................................. 6-23
6.7 Information about heat dissipation ........................................................................................... 6-24
6.7.1 General .................................................................................................................................... 6-24
6.7.2 Information about ventilation.................................................................................................... 6-28
6.7.3 Power loss of components in rated operation.......................................................................... 6-30
6.7.4 Information about calculating power loss................................................................................. 6-32
7 Service and Support Booksize................................................................................................................ 7-1
7.1 Technical support....................................................................................................................... 7-1
7.2 Replacing fans ........................................................................................................................... 7-2
7.3 List of spare parts ...................................................................................................................... 7-4
A Appendix A .............................................................................................................................................A-1
A.1 List of abbreviations ................................................................................................................... A-1
B Appendix B .............................................................................................................................................B-1
B.1 References................................................................................................................................. B-1
Index
Booksize Power Sections
Equipment Manual, (GH2), 04.2004 Edition, 6SL3097-2AC00-0BP0
Table of Contents
xiii