Siemens SIRIUS 3RW44 - Application Examples for very Heavy Starting (CLASS 30)

Configuration Instructions
SIRIUS 3RW44 manual
2-4 GWA 4NEB 535 2195-02 DS 02
2.2.3 Application Examples for very Heavy Starting (CLASS 30)
Note
These tables provide example set values and device dimensionings. They serve
as information only and are not binding. The set values are application-
dependent and must be optimized during commissioning.
Soft starter dimensioning should, if necessary, be verified with the help of the
Win-Soft Starter program or via the Technical Assistance in Chapter "Important
notes".
Very heavy starting Class 30 (up to 60 s with 350 % I
n motor
),
The soft starter has to be selected two rating classes higher than the motor used
Application Large ventilator Mill Breakers Circular saw/bandsaw
Starting parameters
• Voltage ramp and current
limiting
- Starting voltage % 30 50 50 30
- Starting time s
60 60 60 60
- Current limit value
4xI
M
4xI
M
4xI
M
4xI
M
• Torque ramp
-Starting torque 20 50 50 20
- End torque
150 150 150 150
- Starting time
60 60 60 60
• Breakaway pulse
Deactivated (0 ms) 80 %, 300 ms 80 %, 300 ms Deactivated (0 ms)
Ramp-down mode
Free ramp-down Free ramp-down Free ramp-down Free ramp-down