Siemens SINAMICS S120 Function Manual page 13

5 Vector control ...................................................................................................................................... 183
5.1 Sensorless vector control (SLVC) .............................................................................................. 187
5.2 Vector control with encoder ....................................................................................................... 195
5.3 Speed controller ......................................................................................................................... 196
5.4 Speed controller adaptation ....................................................................................................... 199
5.5 Speed controller pre-control and reference model .................................................................... 202
5.6 Droop ......................................................................................................................................... 206
5.7 Open actual speed value ........................................................................................................... 208
5.8 Torque control ............................................................................................................................ 210
5.9 Torque limiting............................................................................................................................ 213
5.10 Vdc control ................................................................................................................................. 215
5.11 Current setpoint filter .................................................................................................................. 220
5.12 Speed actual value filter ............................................................................................................. 221
5.13 Current controller adaptation ..................................................................................................... 222
5.14 Motor data identification and rotating measurement.................................................................. 224
5.14.1 Overview .................................................................................................................................... 224
5.14.2 Motor data identification ............................................................................................................. 225
5.14.3 Rotating measurement ............................................................................................................... 229
5.14.4 Shortened rotating measurement .............................................................................................. 231
5.15 Efficiency optimization ............................................................................................................... 233
5.16 Quick magnetization for induction motors .................................................................................. 235
5.17 Flying restart .............................................................................................................................. 239
5.17.1 Fast flying restart........................................................................................................................ 241
5.17.2 Faults and parameters ............................................................................................................... 243
5.18 Synchronization.......................................................................................................................... 244
5.19 Voltage Sensing Module ............................................................................................................ 246
5.20 Simulation mode ........................................................................................................................ 248
5.21 Redundance operation power units ........................................................................................... 249
5.22 Bypass ....................................................................................................................................... 250
5.22.1 Bypass with synchronization with overlap ................................................................................. 251
5.22.2 Bypass with synchronization without overlap ............................................................................ 254
5.22.3 Bypass without synchronization ................................................................................................. 255
5.23 Asynchronous pulse frequency .................................................................................................. 259
6 U/f control (vector control) ................................................................................................................... 263
6.1 Voltage boost ............................................................................................................................. 267
6.2 Slip compensation ...................................................................................................................... 270
6.3 Resonance damping .................................................................................................................. 271
6.4 Vdc control ................................................................................................................................. 272
Drive functions
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Contents
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