Siemens SIRIUS 3RW44 User guide

Table of Contents
Important Information
Introduction 1
Configuration Instructions 2
Installation, Connection and
Branch Layout 3
Display, Controls and Device
Interfaces 4
Commissioning 5
Device Functions 6
Diagnosis and Messages 7
Communikation Module
PROFIBUS DP 8
Circuit Examples 9
General Technical Data 10
Appendix
Configuration Data
Index
Correction sheet
SIRIUS
Issue 03/2007
GWA 4NEB 535 2195-02 DS 04
Order No.: 3ZX1012-0RW44-1AB1
Soft Starters
3RW44
System Manual

Siemens AG
Automation & Drives
P.O. box 4848, 90327 Nuremberg, Germany
Siemens Aktiengesellschaft
©Siemens AG 2005
Subject to technical changes
Copyright Siemens AG 2005. All rights reserved.
This document shall not be transmitted or reproduced, nor shall its
contents be exploited or disclosed to third persons without prior written
consent from Siemens. Infringements will be subject to damage claims.
All rights reserved, in particular in case of a patent grant of utility model
registration.
Disclaimer of liability
Although we have carefully checked the contents of this publication for
conformity with the hardware and software described, we cannot
guarantee complete conformity since errors cannot be excluded. The
information provided in this manual is checked at regular intervals and
any corrections which might become necessary will be included in the
next editions.
Safety instructions
This document contains instructions you are strongly advised to observe in order to guarantee your personal safety
and to avoid damage to property. The instructions on your personal safety are marked by a warning triangle, notes on
risk of property damage have no warning triangle. Depending on the degree of risk, the instructions are presented as
follows.
Danger
means that death or serious physical injuries will follow if you do not take the appropriate precautionary measures.
Warning
means that death or serious physical injuries may follow if you do not take the appropriate precautionary measures.
Caution
with a warning triangle means that minor physical injuries may follow if you do not take the appropriate
precautionary measures.
Caution
without a warning triangle means that damage to property may follow if you do not take the appropriate
precautionary measures.
Notice
means that an undesired result or condition may occur if the corresponding instruction is not observed.
Where several degrees of risk are present at the same time, the instruction for the highest degree of risk is used. If an
instruction with a warning triangle contains a warning against personal injury, the same instruction may also contain an
additional warning against damage to property.
Qualified personnel
The associated device/system must only be configured and used in conjunction with this documentation. Devices/
systems must be commissioned and operated by qualified personnel only. Qualified personnel according to the
safety instructions of this documentation are persons authorized to commission, ground, and mark devices, systems
and current circuits according to the relevant safety standards.
Notes on proper use
Please observe the following:
Warning
The device may only be used for applications specified in the catalog and the technical descriptions. Furthermore it
may only be used in combination with third-party devices and components recommended or approved by Siemens.
Faultless and safe operation is only ensured if the product is transported, stored, mounted and installed properly
and if operation and maintenance is carried out conscientiously.
Trademarks
All names carrying the industrial property mark ® are registered trademarks of Siemens AG. The other designations in
this publication may be trademarks whose use by third parties for their own purposes may infringe the rights of the
owners.

Table of Contents
SIRIUS 3RW44 System Manual i
GWA 4NEB 535 2195-02 DS 04
Important notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 Physical Basics of the 3-phase Asynchronous Motor and Mode of Operation of the Soft Starter . 1-2
1.1.1 3-phase Asynchronous Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.1.2 Operating Mode of the SIRIUS 3RW44 Electronic Soft Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.2 Application and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
1.3 Marginal Conditions for Storage and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2 Configuration Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.1 RS 232 Serial PC Interface and Soft Starter ES Parameterization and Operating Software. . . . . . 2-2
2.1.2 Win Soft Starter Selection and Simulation Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.1.3 Training Course for SIRIUS Soft Starters (SD-SIRIUSO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2 Normal or Heavy Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2.1 Application Examples for Normal Starting (CLASS 10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2.2 Application Examples for Heavy Starting (CLASS 20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2.3 Application Examples for Very Heavy Starting (CLASS 30) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.3 On-time and Switching Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.4 Installation Altitude and Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.5 Factory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.6 Order Number Classification for SIRIUS 3RW44 Soft Starters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
3 Installation, Connection and Branch Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 Installing the Soft Starter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.1.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.1.2 Mounting Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.1.3 Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.1.4 Mounting Dimensions and Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.2 Branch Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.2 Soft Starters in Standard Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3.2.3 Soft Starters in Inside Delta Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.2.4 Soft starter with Contactor Disconnector (Main Contactor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3.3 Protection of the Soft Starter against Short Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3.4 Capacitors for Power Factor Improvement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.5 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.5.1 Control and Auxiliary Current Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.5.2 Main Current Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.5.3 Conductor Cross-sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
4 Display, Controls and Device Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 Display and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.2 Device Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.2.1 Local Device Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.2.2 Profibus Interface (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.3 External Display and Control Unit (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Table of Contents
ii SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04
5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1 Menu Structure, Navigation, Changing Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.1.1 Menu Structure and Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.1.2 Changing Parameters: For Example Motor Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5.2 Switching on for the First Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5.2.1 Recommendation on Procedure for 3RW44 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5.2.2 Quick Start Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5.3 User-specific Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.3.1 Main Menu Item "Settings" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
5.4 Making Settings in the Selected Parameter Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5.4.1 Selecting the Parameter Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5.4.2 Entering the Motor Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5.4.3 Specifying the Starting Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
5.4.4 Specifying the Stopping Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
5.4.5 Setting Slow Speed Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
5.4.6 Specifying Current Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-27
5.4.7 Parameterizing the Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
5.4.8 Parameterizing the Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29
5.4.9 Selecting Motor Protection Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31
5.4.10 Selecting Display Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33
5.4.11 Specifying the Behavior of the Protective Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-34
5.4.12 Specifying the Names on the Device Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35
5.4.13 Activating the Field Bus Interface (PROFIBUS DP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-36
5.4.14 Saving Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37
5.5 Other Device Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-41
5.5.1 Measurement-value Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-41
5.5.2 Status Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-42
5.5.3 Motor Control (Assigning Control Priority) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43
5.5.4 Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-44
5.5.5 Safety (Specifying the User Level, Parameterization Protection). . . . . . . . . . . . . . . . . . . . . . . . . . 5-48
6 Device Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.1 Various Parameter Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.2 Starting Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.2.1 Voltage Ramp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.2.2 Torque Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
6.2.3 Breakaway Pulse in Combination with the Voltage Ramp or Torque Control Starting Mode. . . . . . 6-7
6.2.4 Current Limiting in Combination with the Voltage Ramp or Torque Control Starting Mode . . . . . . . 6-9
6.2.5 Starting Mode: Direct On-line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
6.2.6 Starting Mode: Motor Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
6.3 Stopping Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
6.3.1 Coasting Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
6.3.2 Torque Control and Pump Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
6.3.3 DC Braking / Combined Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
6.4 Slow Speed Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
6.5 Current Limits for Load Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
6.6 Motor Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
6.7 Inherent Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23

Table of Contents
SIRIUS 3RW44 System Manual iii
GWA 4NEB 535 2195-02 DS 04
7 Diagnosis and Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1 Diagnosis, Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7.1.1 Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7.1.2 Warnings and Group Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7.1.3 Device Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
8 PROFIBUS DP Communication Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
8.1.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
8.2 Data Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
8.2.1 Data Transmission Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
8.2.2 Communication Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
8.3 Installation of the PROFIBUS DP Communication Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
8.3.1 Insertion of the PROFIBUS DP Communication Module (Field Bus Interface) . . . . . . . . . . . . . . . . 8-7
8.4 Activating the PROFIBUS DP Communication Module (Field Bus Interface) and Setting the
Station Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
8.4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
8.4.2 Activating the PROFIBUS DP Communication Module via the Display, Setting the Station Address
and Saving the Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
8.4.3 Activating the PROFIBUS DP Communication Module (Field Bus Interface) and Setting the
Station Address via the Device Interface using the "Soft Starter ES Professional" or the
"Soft Starter ES Smart + SP1" Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13
8.5 Soft Starter Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15
8.5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15
8.5.2 Configuration with the GSD File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15
8.5.3 Configuration using the Soft Starter ES Professional Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
8.6 PROFIBUS DP Commissioning using the GSD File in STEP 7 (Example) . . . . . . . . . . . . . . . . . . 8-17
8.6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17
8.6.2 Configuration using the Device Master File (GSD) in STEP 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
8.6.3 Integration into the User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
8.6.4 Switching On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
8.6.5 Flow Diagram PROFIBUS DP - Starting the Soft Starter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22
8.7 Process Data and Process Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
8.8 Diagnosis via LED Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25
8.9 Diagnosis with STEP 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26
8.9.1 Reading the Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26
8.9.2 Options for Reading the Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26
8.9.3 Structure of the Slave Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27
8.9.4 Station Status 1 to 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
8.9.5 Master PROFIBUS Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-30
8.9.6 Manufacturer Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-30
8.9.7 Code-Related Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-31
8.9.8 Module Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
8.9.9 Channel-Related Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-33
8.10 Data Formats and Data Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35
8.10.1 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35
8.11 Identification Number (ID No.), Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
8.11.1 Identification Number (ID No.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
8.11.2 Error Codes for Negative Data Set Acknowledgement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-38
8.12 Data Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
8.12.1 Data Set 68 - Reading/Writing the Process Image of the Outputs. . . . . . . . . . . . . . . . . . . . . . . . . 8-41
8.12.2 Data Set 69 - Reading the Process Image of the Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42
8.12.3 Data Set 72 - Log List - Reading Device Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-43

Table of Contents
iv SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04
8.12.4 Data Set 73 Log List - Reading the Trippings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-44
8.12.5 Data Set 75 Log List - Reading Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-46
8.12.6 Data Set 81 - Reading the Basic Settings of Data Set 131 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48
8.12.7 Data Set 82 - Reading the Basic Settings of Data Set 132 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48
8.12.8 Data Set 83 - Reading the Basic Settings of Data Set 133 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48
8.12.9 Data Set 92 - Reading the Device Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49
8.12.10 Data Set 93 - Writing a Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-55
8.12.11 Data set 94 - Reading the Measured Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-56
8.12.12 Data Set 95 - Reading the Statistics Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-57
8.12.13 Data Set 96 - Reading the Maximum Pointer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-58
8.12.14 Data Set 100 - Reading the Device Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-60
8.12.15 Data Sets 131, 141, 151 - Technology Parameters 2: Reading/Writing Set 1, 2, 3 . . . . . . . . . . . . 8-62
8.12.16 Data Sets 132, 142, 152 - Technology Parameters 3: Reading/Writing Set 1, 2, 3 . . . . . . . . . . . . 8-66
8.12.17 Data Set 133 - Technology Parameters 4: O&M Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-67
8.12.18 Data Set 160 - Reading/Writing Communication Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-68
8.12.19 Data Set 165 - Reading/Writing Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-69
9 Circuit Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
9.1 Connection Examples for Main and Control Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
9.1.1 3RW44 in a Standard Circuit with Control via Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
9.1.2 3RW44 in Standard Circuit with Line Contactor and Control via PLC . . . . . . . . . . . . . . . . . . . . . . . 9-3
9.1.3 3RW44 in a Standard Circuit and DC Braking3) Stopping Function for Device Types 3RW44 22
to 3RW44 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4
9.1.4 3RW44 in a Standard Circuit and DC Braking3) Stopping Function for Device Types 3RW44 26
to 3RW44 66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
9.1.5 3RW44 in an Inside elta Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
9.1.6 3RW44 in a Standard Circuit and Control as per Contactor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
9.1.7 3RW44 in a Standard Circuit with Soft Start/Stop and Additional Slow Speed Function in both
Directions of Rotation with one Parameter Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
9.1.8 Activation via PROFIBUS with Switching to Manual Operation Local
(e. g. at the Control Cabinet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
9.1.9 3RW44 in a Standard Circuit and Reversing Operation via Main Contactors with one
Parameter Set without Soft Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10
9.1.10 Reversing Operation with Soft Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
9.1.11 Soft Starter for Pole-Changing Motor with Separate Windings and 2 Paramerter Sets . . . . . . . . . 9-12
9.1.12 Soft Starters for Dahlander Motors with 2 Parameter Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
9.1.13 Parallel Starting of 3 Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14
9.1.14 Soft Starter for Serial Starting with 3 Parameter Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16
9.1.15 Soft Starter for Activation of a Motor with Magnetic Fixing Brake . . . . . . . . . . . . . . . . . . . . . . . . . 9-18
9.1.16 Emergency Stop Monitoring according to EN 954-1 Category 4 with Safety Relay 3TK2823
and 3RW44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-19
9.1.17 Soft Starter with Direct Switching (DOL) as Emergency Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-21
9.1.18 Soft Starter with Star-Delta Starter as Emergency Start (3RW44 in Standard Circuit) . . . . . . . . . 9-22
9.1.19 Soft Starter and Frequency Converter on a Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-23

Table of Contents
SIRIUS 3RW44 System Manual v
GWA 4NEB 535 2195-02 DS 04
10 General Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
10.1 Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
10.2 Transport and Storage Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
10.3 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
10.3.1 Selection and Ordering Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5
10.3.2 Technical Data Power Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8
10.3.3 Technical Data Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12
10.3.4 Conductor Cross-sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-15
10.3.5 Electromagnetic Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-16
10.3.6 Branch Component Circuitry (Standard or Inline Circuit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-17
10.3.7 Branch Component Layout (Inside Delta Circuit). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-22
10.3.8 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-23
10.3.9 Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-24
10.4 Tripping Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-25
10.4.1 Motor Protection Tripping Characteristics: 3RW44 with Symmetry . . . . . . . . . . . . . . . . . . . . . . . 10-25
10.4.2 Motor Protection Tripping Characteristics: 3RW44 with Asymmetry . . . . . . . . . . . . . . . . . . . . . . 10-25
10.5 Dimensional Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-26
Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Configuration-1
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Index-1
Correction sheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fax-1

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vi SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04

Important notes
SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04 vii
Objective of this manual
This manual contains basics and tips on the application of SIRIUS 3RW44 soft
starters. The SIRIUS 3RW44 soft starter is an electronic motor control device for
optimized starting and stopping of 3-phase asynchronous motors.
The manual describes all the SIRIUS 3RW44 soft starter functions.
Target group
The manual is aimed at all users who deal with
• commissioning
• service and maintenance
• planning and configuration of plants
Required basic knowledge
General knowledge in the field of general electrical engineering is required for
understanding this manual.
Validity
This manual is valid for SIRIUS 3RW44 soft starters. It contains a description of
the components that are valid at the time of publication of this manual. We
reserve the right to include an updated product information leaflet with new
components and new component versions.
Definitions
If the short form 3RW44 is used in the text, it refers to the SIRIUS 3RW44 soft
starter.
Standards and approvals
The SIRIUS 3RW44 soft starter complies to the IEC/EN 60947-4-2 standard.
Important notes

Important notes
SIRIUS 3RW44 System Manual
viii GWA 4NEB 535 2195-02 DS 04
Disclaimer of liability
The manufacturer of the system or machine is responsible for ensuring the
correct overall functioning. SIEMENS AG, its branch offices and associated
companies (hereinafter referred to as "SIEMENS") cannot guarantee all
properties of a system or machine not designed by SIEMENS.
SIEMENS can also not assume liability for recommendations given or implied by
the following description. No new guarantee/warranty or liability claims in excess
of the general terms and conditions of SIEMENS can be deduced from the
following description.
Handling
To facilitate and speed up access to special information, the manual contains the
following aids:
• A Table of Contents is listed at the beginning of the manual.
• The individual chapters contain subheadings to provide an overview of the
contents of the section.
• At the end of the manual there is an extensive index to enable you to quickly
access the required information.
Always up-to-date information
For questions on motor starters, your regional contact persons for
communication-capable low-voltage switchgear will be pleased to assist you.
You will find a list of contact persons and the latest version of the manual on the
Internet at:
http://www.siemens.com/softstarter
Please address technical questions to:
Correction sheet
A correction sheet is included at the end of the manual. Please enter your
suggestions for improvement, supplements and corrections and send the sheet
back to us. This will help us to improve the next issue.
Technical Assistance: Telephone: [phone] (8°° - 17°° CET)Fax: [phone]
E-mail: [email protected]
Internet: www.siemens.de/lowvoltage/technical-assistance
Technical Support: Telephone:[phone]

SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04 1-1
Introduction 1
Section Subject Page
1.1 Physical Basics of the 3-phase Asynchronous Motor and Mode of
Operation of the Soft Starter
1-2
1.1.1 3-phase Asynchronous Motor 1-2
1.1.2 Operating Mode of the SIRIUS 3RW44 Electronic Soft Starter 1-4
1.2 Application and Use 1-7
1.3 Marginal Conditions for Storage and Operation 1-8

Introduction
SIRIUS 3RW44 System Manual
1-2 GWA 4NEB 535 2195-02 DS 04
1.1 Physical Basics of the 3-phase Asynchronous Motor and Mode
of Operation of the Soft Starter
1.1.1 3-phase Asynchronous Motor
Applications of the 3-
phase asynchronous
motor
Thanks to their robust and simple design and low-maintenance operation, 3-
phase asynchronous motors are used in large numbers in commercial
applications, trade and industry.
Problem If switched on directly, the typical current and torque behavior of the 3-phase
asynchronous motor may negatively influence the feeding supply network and
the load machine during start-up.
Starting current 3-phase asynchronous motors have a high direct starting current I(starting).
Depending on the motor version, this current may be 3 times to 15 times the size
of the rated operating current. A typical value is 7 to 8 times the size of the motor
rated current.
Disadvantage This results in the following disadvantage
• Higher load on the electrical supply network. This means that the supply
network must be dimensioned for this higher output during motor start-up.
Figure 1-1:Typical starting current behavior of a 3-phase asynchronous motor
Start torque The start torque and the stalling torque can usually be assumed to be between 2
and 4 times the rated torque. For the load machine, this means that the starting
and acceleration forces in relation to rated operation result in increased
mechanical load on the machine and the conveyed material.
Disadvantages This results in the following disadvantages
• Higher load on mechanical parts of the machine
• Higher costs because of application wear and maintenance
001_Stromkurven ohne Sanftstarter.wmf
Motor current
I
IDirect
INom
Motor speed
n
nNom
on-line
starting

Introduction
SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04 1-3
Figure 1-2:Typical starting torque behavior of a 3-phase asynchronous motor
Solution The current and torque behavior during start-up can be optimally adapted to the
requirement of the application using the SIRIUS 3RW44 electronic soft starter.
002_Drehmomentkurven ohne Softstarter.wmf
. .
MDirect start
Motor
torque
M
Motor
MNom
MLoad
e.g. pump
MAcceleration
nNom Motor speed
n
Mstall

Introduction
SIRIUS 3RW44 System Manual
1-4 GWA 4NEB 535 2195-02 DS 04
1.1.2 Operating Mode of the SIRIUS 3RW44 Electronic Soft Starter
The 3RW44 soft starter has two antiparallel thyristors in each of the phases.
There is one thyristor for the positive and one thyristor for the negative half
wave.
Using phase angle control and various control methods, the r.m.s. value of the
motor voltage is increased from a definable start voltage or start torque to the
motor rated voltage within a selectable starting time.
The motor current acts proportional to the voltage applied to the motor. Thus, the
starting current is reduced by the factor of the voltage that is applied to the
motor.
The torque behaves quadratically in relation to the voltage applied to the motor.
The starting torque is thus reduced quadratically based on the voltage applied to
the motor.
Example
The following graphs illustrate the behavior of the starting current and torque of a
3-phase asynchronous motor in combination with a soft starter:
Figure 1-3:Reduced current behavior of the 3-phase asynchronous motor during start-up
with the SIRIUS 3RW44 soft starter
SIEMENS motor 1LG4253AA (55 kW)
Rated data at 400 V:
Pe:55kW
Ie:100A
IDirect on-line starting: approx. 700 A
Me: 355 Nm; Example: Me= 9.55 x 55 kW x
ne: 1480 min-1
MDirect on-line starting: approx. 700 Nm
Set start voltage: 50 % (1/2 supply voltage)
=> IStart 1/2 of the direct-start switch-on current (approx. 350 A)
=> MStart 1/4 of the direct on-line start torque (approx. 175 Nm)
1000
1480 min-1
004_Stromkurven mit Sanftstarter.wmf
Motor current
I
IDirect
ISoft starter
INom
nNom Motor speed
n
on-line
starting

Introduction
SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04 1-5
Figure 1-4:Reduced torque behavior of the 3-phase asynchronous motor during start-up
with the SIRIUS soft starter 3RW44
005_Drehmomentkurven mit Sanftstarter.wmf
1
2
3
1
2
3
n
Motor speed
nNom
Motor torque
M
MNom
MSoft start
voltage ramp
MSoft start
torque-controlled
MLoad (e.g. pump)
MDirect
on-line
starting

Introduction
SIRIUS 3RW44 System Manual
1-6 GWA 4NEB 535 2195-02 DS 04
Starting This means that because the electronic soft starter controls the motor voltage
during motor start-up, it simultaneously controls the ingoing starting current and
the starting torque generated in the motor.
The same principle is also used during the stopping process. The effect is that
the torque generated in the motor is slowly reduced, thus enabling soft stopping
of the application.
During this process, the frequency remains constant and corresponds to the
network frequency, contrary to the frequency-controlled starting and stopping of
a frequency converter.
Upon completion of motor start-up, the thyristors are fully utilized, resulting in the
complete network voltage being applied to the motor terminals. Since no motor
voltage control is required during operation, the thyristors are bridged by
integrated bypass contacts. This reduces the waste heat developing during
continuous operation which is caused by power loss of the thyristor. Therefore,
the area around the switching devices heats up less.
The following graph illustrates the mode of operation of the 3RW44 soft starter:
Figure 1-5:Phase angle control and schematic layout of a soft starter with internal bypass contacts
003_Phasenanschnitt und Thyristoren mit Bypass.dsf
UL1-
L3
G1
L3
L2
L1
UL1 -L3
M
3~
α α αϕ
t

Introduction
SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04 1-7
1.2 Application and Use
Applications and
selection criteria
3RW44 soft starters are an alternative for star-delta starters and frequency
converters.
Their major benefits are smooth starting and stopping, uninterrupted changeover
without current peaks that would stress the power supply, and their compact
dimensions.
Numerous drives which previously could only be operated with frequency
converters can be changed over to soft starter operation using the 3RW44 soft
starter, as long as no speed control, no particularly high starting torque or no
startup with close to nominal current is required.
Applications Possible applications include:
• Conveyor belts
• Powered roller conveyors
• Compressors
• Ventilators, fans
•Pumps
• Hydraulic pumps
• Stirrers
• Centrifugal machines
• Milling machines
• Mills
• Crushers
• Disk saws/ribbon saws
•...
Advantages Conveyor belts and systems:
• Jerk-free starting
• Jerk-free braking
Centrifugal pumps, reciprocating pumps:
• Water hammering is avoided
• Increased service life of the tubing
Stirrers, mixers:
• Reduced starting current
Fans:
• Reduced stress on transmissions and V-belts

Introduction
SIRIUS 3RW44 System Manual
1-8 GWA 4NEB 535 2195-02 DS 04
1.3 Marginal Conditions for Storage and Operation
Caution
Please ensure that no liquid, dust or conductive parts
enter the soft starter!
Permissible ambient temperature for
-Storage -25°C...+80°C
- Operation 0 °C ... +60 °C, from 40 °C with derating
(refer to Chapter 10.3 "Technical Data")
Permissible relative air humidity 10 ... 95 %
Maximum permissible installation
height
5,000 m, from 1,000 m with derating