Eaton PowerXL DA1 Series Installation Manual page 6

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2 Engineering ................................................................................ 45
2.1 Introduction.................................................................................. 45
2.2 Electrical power network ............................................................. 47
2.2.1 Mains connection and configuration ............................................ 47
2.2.2 Mains voltage and frequency....................................................... 48
2.2.3 Voltage balance............................................................................ 49
2.2.4 Total Harmonic Distortion (THD) .................................................. 49
2.2.5 Reactive power compensation devices ....................................... 50
2.3 Safety and switching.................................................................... 51
2.3.1 Disconnecting device................................................................... 51
2.3.2 Fuses ........................................................................................... 51
2.3.3 Cable cross-sections .................................................................... 52
2.3.4 Residual current device (RCD) ..................................................... 53
2.3.5 Mains contactors ......................................................................... 54
2.3.6 Using abypass connection ........................................................... 55
2.4 Mains chokes............................................................................... 56
2.5 Radio interference suppression filter ........................................... 57
2.6 Brake resistors ............................................................................. 58
2.7 Motor chokes............................................................................... 61
2.8 Sine wave filters .......................................................................... 62
2.9 Three-phase motor....................................................................... 63
2.9.1 Motor selection............................................................................ 63
2.9.2 Circuit types withthree-phase motors.......................................... 64
2.9.3 Connecting Motors in Parallel ...................................................... 65
2.9.4 Single-phase ACmotors ............................................................... 67
2.9.5 Connecting EX motors ................................................................. 67
2.9.6 Synchronous, reluctance, and PM motors................................... 67
2.10 STO function ................................................................................ 68
2.10.1 Overview...................................................................................... 68
2.10.2 TÜV certification........................................................................... 69
2.10.3 Specification of the safety relay................................................... 69
2.10.4 STO-compatible installation ......................................................... 70
2.10.5 STO function pick-up time ........................................................... 73
2.10.6 STO function parameters............................................................. 73
2.10.7 Error messages............................................................................ 76
2.10.8 STO function checklist ................................................................. 76
2.10.9 Regular maintenance ................................................................... 77
2.10.10 "Safe stop"function..................................................................... 77
DA1 Variable Frequency Drives 08/18 MN04020005Z-EN www.eaton.com