Siemens SINAMICS S120 Function Manual page 14

Contents
7 Basic functions ..................................................................................................................................... 279
7.1 Changing over units .................................................................................................................. 279
7.2 Reference parameters/normalizations ...................................................................................... 281
7.3 Modular machine concept ......................................................................................................... 285
7.4 Sinusoidal filter .......................................................................................................................... 288
7.5 Motor reactors ........................................................................................................................... 290
7.6 dv/dt filter plus VPL ................................................................................................................... 291
7.7 dv/dt filter compact plus Voltage Peak Limiter .......................................................................... 292
7.8 Pulse frequency wobbling ......................................................................................................... 294
7.9 Direction reversal without changing the setpoint ...................................................................... 295
7.10 Automatic restart ....................................................................................................................... 297
7.11 Armature short-circuit, DC braking ............................................................................................ 301
7.11.1 Armature short-circuit braking for permanent-magnet synchronous motors ............................ 302
7.11.1.1 Internal armature short-circuit braking ...................................................................................... 302
7.11.1.2 External armature short-circuit braking ..................................................................................... 303
7.11.2 DC braking ................................................................................................................................ 306
7.11.2.1 Activation via parameters .......................................................................................................... 306
7.11.2.2 Activation via fault response ..................................................................................................... 307
7.11.2.3 Activation via OFF fault responses ........................................................................................... 308
7.11.2.4 Activation via a speed threshold ............................................................................................... 308
7.11.3 Configuring the fault response .................................................................................................. 309
7.11.4 Function diagrams and parameters .......................................................................................... 310
7.12 Motor Module as a Braking Module .......................................................................................... 311
7.12.1 Features .................................................................................................................................... 311
7.12.2 Configuring resistors ................................................................................................................. 312
7.12.3 Activating the "Braking Module" function .................................................................................. 316
7.12.4 Protective equipment ................................................................................................................ 318
7.12.5 Overview of the important parameters ...................................................................................... 319
7.13 OFF3 torque limits ..................................................................................................................... 320
7.14 Technology function: friction characteristic ............................................................................... 321
7.15 Simple brake control ................................................................................................................. 323
7.16 Runtime (operating hours counter) ........................................................................................... 326
7.17 Energy-saving display ............................................................................................................... 328
7.18 Encoder diagnostics .................................................................................................................. 331
7.18.1 Datalogger ................................................................................................................................. 331
7.18.2 Encoder dirty signal ................................................................................................................... 332
7.19 Tolerant encoder monitoring ..................................................................................................... 333
7.19.1 Encoder track monitoring .......................................................................................................... 334
7.19.2 Zero mark tolerance .................................................................................................................. 335
7.19.3 Freezing the speed raw value ................................................................................................... 336
7.19.4 Adjustable hardware filter .......................................................................................................... 337
7.19.5 Edge evaluation of the zero mark ............................................................................................. 338
7.19.6 Pole position adaptation ............................................................................................................ 339
14
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions