Siemens Sinamics S120 Function Manual page 18

Contents
7.9.6 Function diagrams and parameters .......................................................................................... 398
7.10 Connecting the motors in parallel ............................................................................................. 399
7.11 Parallel connection of power units ............................................................................................ 401
7.11.1 Applications of parallel connections.......................................................................................... 403
7.11.1.1 Parallel connection of Basic Line Modules ............................................................................... 405
7.11.1.2 Parallel connection of Smart Line Modules............................................................................... 407
7.11.1.3 Parallel connection of Active Line Modules .............................................................................. 408
7.11.1.4 Parallel connection of Motor Modules....................................................................................... 410
7.11.2 Commissioning.......................................................................................................................... 412
7.11.3 Additional drive in addition to the parallel connection............................................................... 412
7.12 Extended stop and retract ......................................................................................................... 415
7.12.1 Preconditions for extended stop and retract ............................................................................. 416
7.12.2 Activating and enabling the ESR function................................................................................. 416
7.12.3 Valid sources for triggering the ESR functions ......................................................................... 417
7.12.4 Invalid sources .......................................................................................................................... 418
7.12.5 ESR responses ......................................................................................................................... 418
7.12.5.1 Extended stopping .................................................................................................................... 418
7.12.5.2 Extended retract........................................................................................................................ 419
7.12.5.3 Regenerative operation............................................................................................................. 420
7.12.6 Restrictions for ESR.................................................................................................................. 420
7.12.7 PROFIdrive telegram for ESR................................................................................................... 421
7.12.8 Function diagrams and parameters .......................................................................................... 421
7.13 Moment of inertia estimator....................................................................................................... 422
8 Monitoring and protective functions ....................................................................................................... 427
8.1 Power unit protection, general .................................................................................................. 427
8.2 Thermal monitoring and overload responses............................................................................ 427
8.3
Block protection......................................................................................................................... 430
8.4 Stall protection (only for vector control) .................................................................................... 431
8.5 Thermal motor protection .......................................................................................................... 432
8.5.1 Thermal motor models .............................................................................................................. 432
8.5.1.1 Thermal motor model 1 ............................................................................................................. 433
8.5.1.2 Thermal motor model 2 ............................................................................................................. 433
8.5.1.3 Thermal motor model 3 ............................................................................................................. 434
8.5.2 Motor temperature sensing ....................................................................................................... 436
8.5.3 Sensor Modules ........................................................................................................................ 437
8.5.4 Sensor Module Cabinet-Mounted ............................................................................................. 437
8.5.5 Sensor Module External............................................................................................................ 438
8.5.6 Sensor Module SME 20/25 ....................................................................................................... 438
8.5.7 Sensor Module External 120/125.............................................................................................. 438
8.5.8 Terminal Modules...................................................................................................................... 440
8.5.9 Terminal Module 31 .................................................................................................................. 440
8.5.10 Terminal Module 120 ................................................................................................................ 441
8.5.11 Terminal Module 150 ................................................................................................................ 443
8.5.11.1 Measurement with up to 6 channels: ........................................................................................ 444
8.5.11.2 Measurement with up to 12 channels: ...................................................................................... 445
8.5.11.3 Forming groups of temperature sensors................................................................................... 445
8.5.11.4 Evaluating temperature channels ............................................................................................. 446
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Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Drive functions