Siemens SINAMICS G110M - Page 10

8.11 Switching over the drive control (command data set) ....................................................... 227
8.12 Motor holding brake ........................................................................................................ 230
8.13 Free function blocks......................................................................................................... 235
8.13.1 Overview......................................................................................................................... 235
8.13.2 Further information ......................................................................................................... 236
8.14 Selecting physical units.................................................................................................... 237
8.14.1 Motor standard................................................................................................................ 237
8.14.2 Unit system ..................................................................................................................... 237
8.14.3 Technological unit of the technology controller ................................................................ 239
8.14.4 Setting the system of units and technology unit ............................................................... 240
8.15 Safe Torque O󹪜 (STO) safety function ............................................................................... 242
8.15.1 EMERGENCY SWITCHING OFF and EMERGENCY STOP........................................................ 244
8.15.2 Commissioning STO ......................................................................................................... 245
8.15.2.1 Password ......................................................................................................................... 245
8.15.2.2 Con󹪝guring a safety function ........................................................................................... 247
8.15.2.3 Interconnecting the "STO active" signal............................................................................. 248
8.15.2.4 Signal 󹪝lter for STO selection............................................................................................ 249
8.15.2.5 Setting the signal 󹪝lter for STO selection........................................................................... 251
8.15.2.6 Forced checking procedure .............................................................................................. 251
8.15.2.7 Setting forced checking procedure ................................................................................... 252
8.15.2.8 Complete commissioning................................................................................................. 254
8.15.2.9 Checking the assignment of the digital inputs .................................................................. 255
8.15.2.10 Acceptance test ............................................................................................................... 256
8.16 Setpoints ......................................................................................................................... 258
8.16.1 Overview......................................................................................................................... 258
8.16.2 Analog input as setpoint source ....................................................................................... 260
8.16.3 Specifying the setpoint via the 󹪝eldbus............................................................................. 261
8.16.4 Electromechanical potentiometer..................................................................................... 262
8.16.5 Motorized potentiometer as setpoint source..................................................................... 263
8.16.6 Fixed speed setpoint as setpoint source............................................................................ 265
8.17 Setpoint calculation ......................................................................................................... 269
8.17.1 Overview......................................................................................................................... 269
8.17.2 Invert setpoint ................................................................................................................. 270
8.17.3 Inhibit direction of rotation .............................................................................................. 271
8.17.4 Skip frequency bands and minimum speed....................................................................... 272
8.17.5 Speed limitation .............................................................................................................. 274
8.17.6 Ramp-function generator................................................................................................. 275
8.18 PID technology controller ................................................................................................. 280
8.19 Motor control................................................................................................................... 287
8.19.1 V/f control........................................................................................................................ 287
8.19.1.1 Characteristics of U/f control ............................................................................................ 291
8.19.1.2 Selecting the U/f characteristic ......................................................................................... 293
8.19.1.3 Optimizing motor starting................................................................................................ 294
8.19.2 Sensorless vector control with speed controller................................................................. 296
8.19.2.1 Structure of vector control without encoder (sensorless)................................................... 296
8.19.2.2 Optimizing the closed-loop speed controller ..................................................................... 297
8.19.2.3 Advanced settings............................................................................................................ 300
8.19.2.4 Friction characteristic....................................................................................................... 301
Table of contents
Distributed converter for SIMOGEAR geared motors
8 Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL