INVT Goodrive270 Series - Page 9

Goodrive270 series VFD for fan and pump Contents
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8.4 Capacitor ........................................................................................................................ 291
8.4.1 Capacitor reforming ............................................................................................... 291
8.4.2 Electrolytic capacitor replacement ......................................................................... 292
8.5 Power cable .................................................................................................................... 292
9 Communication protocol ........................................................................................................ 293
9.1 What this chapter contains .............................................................................................. 293
9.2 Modbus protocol introduction .......................................................................................... 293
9.3 Application of Modbus ..................................................................................................... 293
9.3.1 RS485 ................................................................................................................... 293
9.3.2 RTU mode............................................................................................................. 296
9.4 RTU command code and communication data................................................................. 299
9.4.1 Command code 03H, reading N words (continuously up to 16 words) .................... 299
9.4.2 Command code 06H, writing a word ...................................................................... 301
9.4.3 Command code 10H, continuous writing ................................................................ 302
9.4.4 Data address definition .......................................................................................... 303
9.4.5 Fieldbus scale ....................................................................................................... 307
9.4.6 Error message response ....................................................................................... 308
9.4.7 Read/Write operation examples ............................................................................. 309
9.5 Common communication faults ....................................................................................... 314
Appendix A Expansion card ...................................................................................................... 315
A.1 Model definition .............................................................................................................. 315
A.2 Dimensions and installation ............................................................................................ 316
A.3 Wiring ............................................................................................................................. 319
A.4 I/O cards ......................................................................................................................... 320
A.4.1 EC-IO501-00 ........................................................................................................ 320
A.4.2 EC-IO503-00 ........................................................................................................ 322
A.5 Communication cards ..................................................................................................... 324
A.5.1 PROFIBUS-DP communication card (EC-TX503D) ............................................... 324
A.5.2 CAN multi-protocol communication card (EC-TX505C) .......................................... 326
A.5.3 PROFINET communication card (EC-TX509C) ..................................................... 327
Appendix B Technical data ........................................................................................................ 330
B.1 What this chapter contains .............................................................................................. 330
B.2 Derated application ......................................................................................................... 330
B.2.1 Capacity ............................................................................................................... 330
B.2.2 Derating ................................................................................................................ 330
B.3 Grid specifications .......................................................................................................... 331
B.4 Motor connection data .................................................................................................... 331
B.4.1 EMC compatibility and motor cable length ............................................................. 331
B.5 Application standards ...................................................................................................... 332
B.5.1 CE marking ........................................................................................................... 332