Siemens SIRIUS Soft starters Manual 3RW30 3RW40 (EN)

SIRIUS Soft starters 3RW30 / 3RW40

Soft starters SIRIUS 3RW30 / 3RW40 Manual • 01/2010 Industrial Controls Answers for industry.

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Overview

Introduction 1 Industrial Controls Soft starters SIRIUS 3RW30 / 3RW40 Manual 01/2010 535 1995-02 DS01 Safety information 2 Product description 3 Product combinations 4 Functions 5 Application planning 6 Installation 7 Installation / mounting 8 Connecting 9 Operation 10 Configuration 11 Commissioning 12 Technical data 13 Dimension drawings 14 Typical circuit diagrams 15 Accessories 16 Appendix A

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Legal information

Legal information Warning notice system This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger. DANGER indicates that death or severe personal injury will result if proper precautions are not taken. WARNING indicates that death or severe personal injury may result if proper precautions are not taken.

CAUTION with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken. CAUTION without a safety alert symbol, indicates that property damage can result if proper precautions are not taken. NOTICE If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage. indicates that an unintended result or situation can occur if the corresponding information is not taken into account.

Qualified Personnel The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation for the specific task, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems. Proper use of Siemens products Note the following: Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation.

If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be adhered to. The information in the relevant documentation must be observed. Trademarks WARNING All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

Disclaimer of Liability We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions. Siemens AG Industry Sector Postfach 48 48 90026 NЬRNBERG GERMANY Ordernumber: 3ZX1012-0RW30-1AC1 ®‹ 01.2010 Copyright © Siemens AG 2009. Technical data subject to change

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Table of contents

Table of contents 1 Introduction ............................................................................................................................................. 11 1.1 Important notes.......................................................................................................................... 11 2 Safety information .................................................................................................................................. 13 2.1 Before commencing work:

Isolating the equipment from the supply system and ensuring that it cannot be reconnected.............................................................................................................. 13 2.2 Five safety rules for work in or on electrical systems ................................................................ 13 3 Product description ................................................................................................................................ 15 3.1 Fields of application...................................................................................................................

15 3.2 Basic physical principles of a three-phase induction motor....................................................... 15 3.2.1 Three-phase induction motor ..................................................................................................... 15 3.3 Functional principle of the SIRIUS 3RW30 and 3RW40 soft starters........................................ 17 3.3.1 Method of operation of a two-phase controlled soft starter ....................................................... 20 3.3.2 Starting current asymmetry .......................................................................................................

21 3.3.3 Applications and use ................................................................................................................. 22 3.4 Comparison of device functions ................................................................................................ 24 4 Product combinations ............................................................................................................................ 25 4.1 SIRIUS modular system ............................................................................................................

25 5 Functions ................................................................................................................................................. 27 5.1 Start modes ............................................................................................................................... 27 5.1.1 Voltage ramp ............................................................................................................................. 27 5.1.2 Current limiting and ramp-up detection (3RW40 only) ..............................................................

29 5.2 Stop modes ............................................................................................................................... 30 5.2.1 Stop without load (3RW30 and 3RW40) .................................................................................... 31 5.2.2 Soft stop (3RW40 only) ............................................................................................................. 31 5.3 Motor protection / intrinsic device protection (3RW40 only) ...................................................... 32 5.3.1 Motor protection function ...........................................................................................................

32 5.3.2 Intrinsic device protection (3RW40 only) ................................................................................... 35 5.4 Functions of the RESET buttons ............................................................................................... 36 5.4.1 SIRIUS 3RW40 2, 3RW40 3, and 3RW40 4 soft starters .......................................................... 36 5.4.2 SIRIUS 3RW40 5 and 3RW40 7 soft starters ............................................................................ 38 5.4.3 Other functions of the RESET button ........................................................................................

39 5.5 Functions of the inputs .............................................................................................................. 40 5.5.1 Start input (terminal 1) on 3RW30 and 3RW40 2 to 3RW40 4 .................................................. 40 5.5.2 Start input (terminal 3) on 3RW40 5 and 3RW40 7 ................................................................... 40 5.5.3 Thermistor input / connection on 3RW40 2 to 3RW40 4 ........................................................... 41 5.6 Functions of the outputs ............................................................................................................ 41 5.6.1 3RW30:

Output terminal 13 / 14 ON .......................................................................................... 41 5.6.2 3RW40: Output terminals 13 / 14 ON / RUN and 23 / 24 BYPASSED ...................................... 42 SIRIUS 3RW30 / 3RW40 Manual 01/2010, 535 1995-02 DS01 5

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