Siemens SINAMICS S120 Combi Equipment Manual page 20

Table of contents
12.6.3 Overcurrent protection in the 24 V solid-state circuit ................................................................ 250
12.6.4 Typical 24 V current consumption of the components.............................................................. 252
12.6.5 Selecting power supply units..................................................................................................... 254
12.7 Cable shielding and routing....................................................................................................... 255
12.7.1 General information................................................................................................................... 255
12.7.2 Signal cables and 24 V supply cables ...................................................................................... 256
12.7.3 DRIVE-CLiQ signal cables ........................................................................................................ 257
12.7.4 Power cables for motor ............................................................................................................. 258
12.7.4.1 Approved power cables............................................................................................................. 258
12.7.5 Current-carrying capacity and derating factors for power cables and signal cables ................ 260
12.8 Connection system.................................................................................................................... 262
12.8.1 Connectable conductor cross-sections for spring-loaded terminals ......................................... 262
12.8.2 Connectable conductor cross-sections for screw terminals...................................................... 262
12.9 Note on control cabinet cooling................................................................................................. 264
12.9.1 General information................................................................................................................... 264
12.9.2 Ventilation.................................................................................................................................. 267
12.9.3 Dimensioning Climate Control Equipment ................................................................................ 269
12.9.4 Power loss of components in rated operation........................................................................... 270
12.9.4.1 General information................................................................................................................... 270
12.9.4.2 Power losses for SINUMERIK 828D, DC link components and supplementary system
components............................................................................................................................... 270
12.9.4.3 Power losses for S120 Combi Power Modules......................................................................... 271
12.9.4.4 Power loss for line filters and line reactors ............................................................................... 271
12.9.4.5 Electronics losses of power units.............................................................................................. 272
12.9.4.6 Losses in partial-load operation ................................................................................................ 272
13 Service and maintenance ...................................................................................................................... 275
13.1 Technical Support ..................................................................................................................... 275
13.2 Spare parts................................................................................................................................ 276
13.3 Replacing the fan ...................................................................................................................... 277
13.3.1 Replacing the Internal fan on the S120 Combi Power Module ................................................. 277
13.3.2 Replacing the fan on the Motor Modules Booksize Compact ................................................... 280
13.3.3 Replacing the fan on the Control Supply Module ..................................................................... 283
13.4 Cleaning the S120 Combi heat sink.......................................................................................... 284
13.5 Forming the DC link capacitors................................................................................................. 286
A Appendix................................................................................................................................................ 289
A.1 List of abbreviations .................................................................................................................. 289
Index...................................................................................................................................................... 301
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SINAMICS S120 Combi
Manual, Edition 05.2010, 6SL3097-4AV00-0BP0