Siemens SIRIUS 3RW40 - Page 5

Table of contents
SIRIUS 3RW30 / 3RW40
Manual, 10/2018, NEB535199502000/RS-AB/005
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9 Installation / mounting ........................................................................................................................... 71
9.1 General information ................................................................................................................ 71
9.2 General feeder assembly (type of coordination 1) .................................................................. 72
9.3 Soft starter with line contactor (type of coordination 1) .......................................................... 73
9.4 Soft starter assembly with type of coordination 2 ................................................................... 74
9.5 Capacitors to improve the power factor .................................................................................. 76
9.6 Maximum cable length ............................................................................................................ 76
10 Connecting ........................................................................................................................................... 77
10.1 Electrical connection ............................................................................................................... 77
10.1.1 Control and auxiliary terminals ............................................................................................... 77
10.1.2 Main circuit connection ........................................................................................................... 77
11 Operation .............................................................................................................................................. 81
11.1 Operator controls, displays, and connections on the 3RW30................................................. 81
11.2 Operator controls, displays, and connections on the 3RW40................................................. 82
11.3 Effects on changing the potentiometer settings ...................................................................... 84
12 Configuration ........................................................................................................................................ 85
12.1 Configuration in general .......................................................................................................... 85
12.1.1 Configuration procedure ......................................................................................................... 86
12.1.2 Selecting the optimum soft starter .......................................................................................... 86
12.2 Startup class ........................................................................................................................... 89
12.2.1 Application examples for normal starting (CLASS 10) with 3RW30 and 3RW40 ................... 90
12.2.2 Application examples for heavy-duty starting (CLASS 20): 3RW40 only ............................... 91
12.3 ON time and switching frequency ........................................................................................... 92
12.4 Reducing the rated data ......................................................................................................... 93
12.5 Dimensioning of soft starters for motors with high starting current conditions ....................... 93
12.6 Installation altitude and ambient temperature ......................................................................... 94
12.7 Calculating the permissible switching frequency .................................................................... 95
12.7.1 Table of permissible assembly combinations with switching frequency factors ..................... 95
12.7.2 Calculating the switching frequency (example) ...................................................................... 98
12.8 Configuration aids ................................................................................................................. 100
12.8.1 Selection of the soft starter using the Simulation Tool for Soft Starters ............................... 100
12.9 Article number system for the 3RW30 .................................................................................. 101
12.10 Article number system for the 3RW40 .................................................................................. 102
13 Commissioning ................................................................................................................................... 103
13.1 Commissioning the 3RW30 .................................................................................................. 103
13.1.1 Commissioning procedure .................................................................................................... 103
13.1.2 Quick commissioning of the 3RW30 and optimization of the parameters ............................ 104
13.1.3 Setting the soft start function ................................................................................................ 105
13.1.4 Setting the starting voltage ................................................................................................... 106
13.1.5 Setting the ramp time ............................................................................................................ 106