Siemens SINAMICS S220

4.15 Protective connection and function equipotential bonding.................................................. 69
4.15.1 Rules to dimension the protective connection..................................................................... 69
4.15.2 Conductor cross-section for protective connections ............................................................ 70
4.15.3 Protective connection concept ........................................................................................... 70
4.15.3.1 Protective connection via the PE busbar.............................................................................. 70
4.15.3.2 Protective connection via the mounting plate..................................................................... 72
4.15.4 Functional equipotential bonding....................................................................................... 72
5 Mounting ............................................................................................................................................. 75
5.1 Installation in the control cabinet ....................................................................................... 75
5.1.1 Installation regulations for SINAMICS components.............................................................. 75
5.1.2 Contact persons................................................................................................................. 75
5.1.3 Mounting position ............................................................................................................. 76
5.1.4 Closed-loop control of the device fan ................................................................................. 76
5.1.5 Ventilation clearances........................................................................................................ 76
5.1.6 Cable Installation ............................................................................................................... 78
5.1.7 Shield support ................................................................................................................... 78
5.2 Layout of the components ................................................................................................. 78
5.2.1 Combination of components.............................................................................................. 78
5.2.2 Selecting the Line Module to the Motor Module.................................................................. 78
5.2.3 Calculating the continuous current-carrying capacity of the DC link busbars........................ 79
5.2.4 Con󹪝guration examples ..................................................................................................... 83
5.2.4.1 Single-tier con󹪝guration with infeed to the right................................................................. 83
5.2.4.2 Single-tier con󹪝guration with center infeed ........................................................................ 84
5.2.4.3 Con󹪝guration examples for a multi-tier con󹪝guration ......................................................... 85
5.3 DC link busbars .................................................................................................................. 87
5.3.1 Connecting the DC link busbars.......................................................................................... 87
5.3.2 Order data DC link bridge................................................................................................... 90
5.4 24V terminal adapter ........................................................................................................ 90
5.4.1 Mounting the 24V terminal adapter................................................................................... 90
5.4.2 Order data for the 24V terminal adapter ............................................................................ 92
5.5 Connecting the 24 V busbars ............................................................................................. 92
5.5.1 Connecting the 24 V busbars ............................................................................................. 92
5.5.2 Order data for the 24 V connector ...................................................................................... 93
5.6 Information on routing cables 24 V conductors................................................................... 93
5.7 24V power supply ............................................................................................................. 94
5.7.1 Using a Control Supply Module .......................................................................................... 94
5.7.2 Using an external power supply.......................................................................................... 95
6 Line-side power components............................................................................................................... 97
6.1 Components for connection to the line supply.................................................................... 97
6.2 Disconnector units............................................................................................................. 97
6.3 Overcurrent protective devices ........................................................................................... 98
6.3.1 Overcurrent protection using fuses and circuit breakers ...................................................... 98
6.3.2 Overcurrent protection using residual current devices (RCD) ............................................... 99
6.3.2.1 Residual current protective devices (RCD) ........................................................................... 99
6.3.2.2 Operating conditions ....................................................................................................... 100
6.3.2.3 Connection example ........................................................................................................ 101
Table of contents
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA 5