Configuration Instructions
SIRIUS 3RW44 manual
2-2 GWA 4NEB 535 2195-02 DS 02
2.1 Configuration
The electronic 3RW44 soft starters are designed for normal starting. A model
with higher output may be necessary for heavy starting or for a higher starting
frequency.
A PTC thermistor in the motor is recommended for long starting times. This also
applies to the soft stop, pump stop and DC braking stopping modes, since there
is an additional current load in contrast to coasting down.
No capacitive elements (e.g. compensation systems) must be included in the
motor branch between the soft starter and the motor. Active filters must not be
operated in combination with soft starters.
All elements of the main circuit (such as fuses and switching devices) must be
dimensioned for direct starting according to the local short-circuit conditions and
should be ordered separately.
The harmonic load of the starting current must be taken into account when
selecting circuit-breakers (release selection).
2.1.1 RS 232 Serial PC Interface and Soft Starter ES Parameterization and Operating Software
The electronic 3RW44 soft starters are equipped with a PC interface to
communicate with the Soft Starter ES smart software and an operating and
monitoring module (display).
2.1.2 Win Soft Starter Selection and Simulation Program
This software allows all SIEMENS soft starters to be simulated and selected
using various parameters such as network conditions, motor data, load data,
special application requirements, etc.
The software is a powerful tool which makes time-consuming and complex
manual calculations for determining the suitable soft starter a thing of the past.
The CD-ROM can be ordered using the following order number:
Order No.: E20001-D1020-P302-V2-7400.
2.1.3 Training course for SIRIUS soft starters (SD-SIRIUSO)
Siemens offers a two-day training course on electronic SIRIUS soft starters to
keep both our customers and Siemens personnel up-to-date on configuration,
commissioning and maintenance.
If you have any questions or would like to enroll, please contact:
Training Center
I&S IS E&C TC
Werner-von-Siemens-Str. 65
91052 Erlangen, Germany
Telephone: ++49 9131 729262
Fax: ++49 9131 728172
sibrain@erl9.siemens.de
http://www.siemens.de/sibrain
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