Eaton DS7 Manual page 6

Contents
2
2.11 Motor connection......................................................................... 41
2.11.1 Connection configurations (star/delta configuration).................... 41
2.11.2 Connection and phase sequence................................................. 42
2.11.3 Delta connection .......................................................................... 43
2.11.4 Actuation of resistive loads.......................................................... 44
2.11.5 Connection of AC motors ............................................................ 45
2.11.6 Long motor supply cables............................................................ 46
2.11.7 Parallel motor connection ............................................................ 46
2.11.8 Connecting motors ...................................................................... 47
2.11.9 Cascade circuit............................................................................. 48
2.11.10 Motors with power factor correction capacitor............................ 48
2.11.11 Bypass circuit............................................................................... 49
2.11.12 Bypass circuit for emergency operation ...................................... 49
2.11.13 Repair and maintenance switch................................................... 51
2.12 Loading conditions ....................................................................... 53
2.12.1 Overload capability (load to AC-53a) ............................................ 53
2.12.2 Conversion of the overload capability to lower overcurrents....... 53
2.12.3 Different overload current............................................................ 54
2.12.4 Configuration options of DS7....................................................... 56
2.13 Design with different load cycles................................................. 57
2.14 Overtemperature (Derating)......................................................... 57
2.15 Example of other load cycles ....................................................... 58
3 Installation.................................................................................. 61
3.1 Introduction.................................................................................. 61
3.2 Mounting positions ...................................................................... 61
3.3 Flush mounting in control panel................................................... 62
3.3.1 Increased cooling ......................................................................... 63
3.3.2 Mounting instructions (BG 1 and BG 2) ....................................... 69
3.3.3 Mounting instructions (size 3 and 4) ............................................ 74
3.4 Electrical Installation .................................................................... 77
3.4.1 Connection to power section....................................................... 78
3.4.2 Connection in control section ...................................................... 80
3.4.3 Connection to SmartWire-DT....................................................... 82
3.4.4 Functions of control signal terminals ........................................... 85
3.4.5 Control section power supply ...................................................... 86
3.4.6 Internal device voltages ............................................................... 86
3.4.7 Ground control voltage................................................................. 86
3.4.8 Relay contacts.............................................................................. 87
3.4.9 Relay contacts - connection examples......................................... 89
3.5 Block diagrams............................................................................. 90
3.6 Insulation test .............................................................................. 91
4 Operation.................................................................................... 93
4.1 Checklist for commissioning........................................................ 93
4.2 Commissioning ............................................................................ 95
4.3 Extended functionality ................................................................. 96
4.4 Potentiometer settings ................................................................ 98
4.4.1 How the potentiometers work..................................................... 98
4.4.2 Examples ..................................................................................... 102
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