User Manual

Configuration
11.1 Configuration in general
SIRIUS 3RW30 / 3RW40
78 Manual, 10/2010, 535199502000 DS 03
11.1.1 Configuration procedure
1. Select the correct starter
What application must be started and what functionality must be provided by the soft starter?
Chapter Selecting the optimum soft starter (Page 78)
2. Take a
ccount of the startup class an
d the switching frequency
Chapters Startup class (Page 81) and Calculating the permissible switching frequency
(Page 87)
3. Take account of a possible reduc
tion in the soft starter's rated data due to the ambient
conditions and the type of assembly.
Chapter Reducing the rated data (Page 85)
11.1.2 Selecting the optimum soft starter
Selection aid
You can choose the optimum starter from the soft starter types available based on the
intended application or the required functionality.
Normal starting (CLASS 10)
applications
3RW30 3RW40 3RW44
Pump + + +
Pump with special stop (against water hammer) - - +
Heat pump + + +
Hydraulic pump x + +
Press x + +
Conveyor belt x + +
Roller conveyor x + +
Conveyor worm x + +
Escalator - + +
Piston compressor - + +
Screw compressor - + +
Small fan
1)
- + +
Centrifugal blower - + +
Bow thruster - + +
+ Recommended soft starter
x Possible soft starter
1) Small fan: Mass inertia (centrifugal mass) of fan < 10 x mass inertia of motor