Siemens SIKOSTART 3RW34 Instructions De Service page 39

Contents
Contents ................................................................................................................................................... i
1 Quick Start-Up Guide ............................................................................................................................. 2
2 Dimensions .............................................................................................................................................. 4
3 Introduction ............................................................................................................................................. 4
3.1 Scope of Manual ....................................................................................................................................... 4
3.2 3RW34 SIKOSTART Features ................................................................................................................... 4
4 Operating Principle ................................................................................................................................. 5
4.1 Function Overview .................................................................................................................................... 5
4.1.1 Soft Start with Coast to Rest .................................................................................................................... 5
4.1.2 Soft Start with Soft Stop ........................................................................................................................... 5
4.1.3 Connecting the Motor to the Soft Starter ................................................................................................. 6
5 Installation ............................................................................................................................................... 7
5.1 Incoming Inspection ................................................................................................................................. 7
5.2 Mounting .................................................................................................................................................. 7
5.3 Installation Precautions ............................................................................................................................. 8
5.3.1 Soft Starter Protection .............................................................................................................................. 8
5.4 Power and Motor Wiring .......................................................................................................................... 9
5.4.1 Power Connection .................................................................................................................................. 10
5.4.2 Motor Connection ................................................................................................................................... 10
5.4.3 Grounding ............................................................................................................................................... 10
5.4.4 Series-connected switching unit ............................................................................................................. 10
5.5 Control Connection ................................................................................................................................. 11
5.6 Overtemperature Switch Connection for 3RW34 86 .............................................................................. 11
5.7 Coil Suppression ..................................................................................................................................... 12
6 Connection Diagrams ........................................................................................................................... 13
6.1 Circuit Devices ........................................................................................................................................ 17
7 Setup and Operation ............................................................................................................................ 18
7.1 Setup Controls ........................................................................................................................................ 18
7.2 LED Indicators ........................................................................................................................................ 20
7.3 Soft Starter Setup ................................................................................................................................... 20
7.4 Preliminary Checks ................................................................................................................................. 20
7.5 Initial Energization ................................................................................................................................... 21
7.6 Motor Starting Adjustments ................................................................................................................... 22
8 Electrical Specifications ....................................................................................................................... 23
9 Soft Starter Selection ........................................................................................................................... 26
10 Troubleshooting ................................................................................................................................... 29
10.1 Maintenance and Troubleshooting ......................................................................................................... 29
10.2 Troubleshooting Tables ........................................................................................................................... 29
10.3 Inside Delta Wiring Problems ................................................................................................................. 31
10.4 Shorted SCR Checks .............................................................................................................................. 32
10.4.1 Resistance Check ................................................................................................................................... 32
11 Spare and Optional Parts ..................................................................................................................... 33
11.1 Spare Parts ............................................................................................................................................. 33
11.1.1 Soft Starter Amps, Uc and Ue ................................................................................................................ 33
11.1.2 Fan Orientation ....................................................................................................................................... 33
11.2 Optional Parts ......................................................................................................................................... 33
11.2.1 Overload Relays ...................................................................................................................................... 33
Appendix A ........................................................................................................................................... 34
Appendix B ........................................................................................................................................... 36
3ZX1012-0RW34-1AN1
Contents
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