Siemens SINAMICS S120 - Page 11

Contents
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
11
4.14 Pole position identification .................................................................................................... 158
4.14.1 Notes regarding pole position identification .......................................................................... 159
4.14.2 Pole position identification technique .................................................................................... 161
4.14.3 Commutation angle offset commissioning support (p1990) ................................................. 163
4.14.4 Overview of important parameters (see SINAMICS S120/S150 List Manual) ..................... 163
4.15 Vdc control ............................................................................................................................ 165
4.16 Dynamic Servo Control (DSC) .............................................................................................. 169
4.17 Travel to fixed stop ................................................................................................................ 174
4.18 Vertical axes ......................................................................................................................... 179
4.19 Variable signaling function .................................................................................................... 180
4.20 Central probe evaluation ....................................................................................................... 182
4.20.1 Examples .............................................................................................................................. 188
4.20.2 Function diagrams and parameters ...................................................................................... 191
4.21 Voltage precontrol ................................................................................................................. 192
4.21.1 Configuring the voltage precontrol ........................................................................................ 192
4.21.2 Function diagrams and parameters ...................................................................................... 201
5 Vector control ...................................................................................................................................... 203
5.1 Technological application ..................................................................................................... 208
5.2 Vector control without encoder (SLVC) ................................................................................ 209
5.2.1 Three-phase induction motor ................................................................................................ 209
5.2.2 Torque setpoint setting ......................................................................................................... 210
5.2.3 Passive loads ........................................................................................................................ 212
5.2.4 Blocking drives ...................................................................................................................... 213
5.2.5 Active loads ........................................................................................................................... 213
5.2.6 Permanent-magnet synchronous motors.............................................................................. 214
5.2.7 Synchronous reluctance motors ........................................................................................... 214
5.2.7.1 Overview ............................................................................................................................... 214
5.2.7.2 Closed-loop controlled operation down to f = 0 Hz with test signal ...................................... 215
5.2.8 Extended method: Closed-loop controlled operation down to 0 Hz ..................................... 216
5.3 Vector control with encoder .................................................................................................. 219
5.4 Speed controller .................................................................................................................... 220
5.4.1 Speed controller .................................................................................................................... 220
5.4.2 Speed controller adaptation .................................................................................................. 223
5.4.3 Speed controller precontrol and reference model ................................................................ 226
5.5 Droop .................................................................................................................................... 230
5.6 Open actual speed value ...................................................................................................... 232
5.7 Closed-loop torque control .................................................................................................... 234
5.8 Torque limiting ...................................................................................................................... 237
5.9 Vdc control ............................................................................................................................ 239
5.10 Current setpoint filter............................................................................................................. 244
5.11 Speed actual value filter ....................................................................................................... 246
5.12 Current controller adaptation ................................................................................................ 247