Table of contents
SINAMICS DCP
Operating Instructions, 09/2019, A5E34382853K
9
7.10 Switch on, switch off, enable ................................................................................................ 323
7.10.1 Switch on / switch off (ON/OFF1) - control word bit 0 .......................................................... 323
7.10.2 OFF2 (disconnection) - control word bit 1............................................................................. 324
7.10.3 OFF 3 (disconnection) - control word bit 2 ........................................................................... 324
7.10.4 Operation enable (enable) - control word bit 3 ..................................................................... 325
7.11 Closed-loop control ............................................................................................................... 326
7.11.1 General information .............................................................................................................. 326
7.11.2 Setpoint specification for current control............................................................................... 328
7.11.3 Current correction controller ................................................................................................. 329
7.11.4 Dynamic overload capability ................................................................................................. 329
7.11.5 Current limitation and power limitation .................................................................................. 336
7.11.6 Voltage limitation ................................................................................................................... 342
7.11.7 Dynamic voltage limitation .................................................................................................... 342
7.11.8 Voltage control ...................................................................................................................... 342
7.11.9 Voltage correction controller ................................................................................................. 344
7.11.10 Current control ...................................................................................................................... 345
7.11.11 Pulse width modulation (PWM) ............................................................................................. 346
7.11.12 PV array flying restart ........................................................................................................... 347
7.11.13 Switching frequency .............................................................................................................. 349
7.11.14 Actual value acquisition ........................................................................................................ 349
7.11.15 Actual value adjustment on site ............................................................................................ 350
7.12 Precharging of the DC links .................................................................................................. 351
7.13 Device fan ............................................................................................................................. 356
7.14 Derating ................................................................................................................................ 357
7.15 Runtime (operating hours counter) ....................................................................................... 360
7.16 Diagnostics ........................................................................................................................... 361
7.16.1 Diagnostic memory ............................................................................................................... 361
7.16.2 Description of the LEDs on the CUD .................................................................................... 362
7.16.3 Faults and alarms ................................................................................................................. 365
7.16.3.1 General information .............................................................................................................. 365
7.16.3.2 Buffer for faults and alarms ................................................................................................... 366
7.16.3.3 Configuring messages .......................................................................................................... 369
7.16.3.4 Parameters and function diagrams for faults and alarms ..................................................... 371
7.16.3.5 Forwarding faults and alarms ............................................................................................... 372
7.17 CPU time load with S
INAMICS DCP .................................................................................... 372
7.17.1 Maximum configuration ......................................................................................................... 374
7.18 Free function blocks .............................................................................................................. 375
7.19 Drive Control Chart (DCC) .................................................................................................... 377
7.19.1 Loading the DCC technology option into the drive unit memory .......................................... 378
7.19.2 CPU time load through DCC ................................................................................................. 380
7.19.3 Memory load through DCC ................................................................................................... 381
7.19.4 Backing up the DCC diagrams ............................................................................................. 382
7.20 Write and know-how protection ............................................................................................ 383
7.20.1 Write protection ..................................................................................................................... 383
7.20.2 Know-how protection ............................................................................................................ 385
7.20.2.1 Copy protection ..................................................................................................................... 388
7.20.2.2 Configuring know-how protection ......................................................................................... 388
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