Siemens SINAMICS S120 System Manual page 9

7.7 Commissioning the grid droop control .................................................................................. 111
7.7.1 Black start in an island grid ................................................................................................... 111
7.7.2 Synchronizing an island grid to an external power grid ........................................................ 114
7.7.3 Overview of important parameters ........................................................................................ 120
7.7.4 Function block diagrams ....................................................................................................... 122
7.8 Commissioning of dynamic grid support ............................................................................... 123
7.8.1 Commissioning the anti-islanding function ........................................................................... 123
7.8.2 Commissioning voltage-time monitoring ............................................................................... 123
7.8.3 Commissioning the frequency-time monitoring .................................................................... 125
7.8.4 Commissioning additional monitoring functions ................................................................... 127
7.8.5 Overview of important parameters ........................................................................................ 128
7.8.6 Function block diagrams ....................................................................................................... 129
7.9 Commissioning cos phi display ............................................................................................. 130
7.10 Commissioning supplementary controls ............................................................................... 132
7.10.1 Commissioning active, reactive and apparent current limiting ............................................. 132
7.10.2 Active current limiting ............................................................................................................ 133
7.10.3 Reactive and apparent current limiting ................................................................................. 133
7.10.4 Current limiting for dynamic grid support .............................................................................. 134
7.10.5 Apparent current limiting for grid droop control .................................................................... 136
7.10.6 Notes for Active Line Modules of the Booksize format ......................................................... 136
7.10.7 Overview of important parameters ........................................................................................ 137
7.10.8 Function block diagrams ....................................................................................................... 137
7.11 Notes for commissioning systems for operation on grids with low short-circuit power
(fault level) and variable grid parameters ............................................................................. 138
8 Device overview .................................................................................................................................. 139
8.1 Control Units ......................................................................................................................... 139
8.2 Voltage Sensing Module VSM10 .......................................................................................... 139
8.3 Active Interface Modules, air-cooled ..................................................................................... 139
8.3.1 Booksize format .................................................................................................................... 139
8.3.2 Chassis format ...................................................................................................................... 140
8.4 Air-cooled Active Line Modules for the grid infeed, chassis format ...................................... 142
8.4.1 Description ............................................................................................................................ 142
8.4.2 Safety information ................................................................................................................. 145
8.4.3 Interface description .............................................................................................................. 148
8.4.3.1 Overview ............................................................................................................................... 148
8.4.3.2 Connection example ............................................................................................................. 150
8.4.3.3 Line/load connection ............................................................................................................. 151
8.4.3.4 X9 terminal strip .................................................................................................................... 152
8.4.3.5 X41 EP terminal / temperature sensor connection ............................................................... 152
8.4.3.6 X42 terminal strip .................................................................................................................. 154
8.4.3.7 DRIVE-CLiQ interfaces X400, X401, X402 .......................................................................... 154
8.4.3.8 Significance of the LEDs on the Control Interface Module in the Active Line Module ......... 155
8.4.4 Dimension drawing ............................................................................................................... 156
8.4.5 Electrical connection ............................................................................................................. 158
8.4.6 Technical data ....................................................................................................................... 160
8.4.6.1 Permissible range for the step-up factor ............................................................................... 165
8.4.6.2 Derating factors ..................................................................................................................... 165
Grid infeed
System Manual, 04/2015, A5E03347436A
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