Eaton PowerXL DB1, Руководство по установке, Страница: 5 / 114

DB1 Variable Frequency Drives 11/20 MN040031EN www.eaton.com
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2 Engineering................................................................................. 33
2.1 Introduction .................................................................................. 33
2.2 Electrical power network ............................................................. 35
2.2.1 Mains connection and network configuration .............................. 35
2.2.2 Mains voltage and frequency ....................................................... 36
2.2.3 Voltage balance ............................................................................ 36
2.2.4 Total harmonic distortion (THD) ................................................... 37
2.2.5 Reactive power compensation devices ....................................... 37
2.3 Cable cross-sections .................................................................... 38
2.4 Safety and switching.................................................................... 38
2.4.1 Disconnecting device ................................................................... 38
2.4.2 Fuses............................................................................................ 39
2.4.3 Residual current device (RCD) ..................................................... 39
2.4.4 Mains contactors.......................................................................... 40
2.5 Mains chokes ............................................................................... 41
2.6 Radio interference suppression filter ........................................... 42
2.7 Brake resistors ............................................................................. 43
2.8 Switch-disconnectors................................................................... 44
2.9 Three-phase motors ..................................................................... 45
2.9.1 Motor selection ............................................................................ 45
2.9.2 Circuit types with three-phase motors......................................... 46
2.9.3 Permanent magnet motor (PM motor)......................................... 47
2.9.4 Brushless DC motor (BLDC motor).............................................. 47
2.9.5 Synchronous reluctance motor (SyncRM).................................... 48
2.9.6 Connecting EX motors ................................................................. 49
3 Installation .................................................................................. 50
3.1 Introduction .................................................................................. 50
3.2 Mounting position ........................................................................ 50
3.3 Assembly ..................................................................................... 51
3.3.1 Installation position ...................................................................... 51
3.3.2 Cooling measures ........................................................................ 52
3.3.3 Mounting...................................................................................... 57
3.4 Correct EMC installation .............................................................. 58
3.4.1 EMC measures in the control panel............................................. 59
3.4.2 Grounding..................................................................................... 60
3.4.3 Shielding....................................................................................... 62
3.4.4 General installation diagram ......................................................... 63
3.5 Electrical installation..................................................................... 64
3.5.1 Connection to the power section................................................. 65
3.5.2 Connection to control section ...................................................... 68
3.5.3 Thermistor connection ................................................................. 73