Siemens SIRIUS 3RW44 User Manual page 15

Solution
SIRIUS 3RW44 manual
GWA 4NEB 535 2195-02 DS 06
Motor
torque
M
M
Direct start
Motor
M
Acceleration
M
Nom
M
Load
. .
e.g. pump
Figure 1-2: Typical starting torque behavior of a 3-phase asynchronous motor
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.
M
stall
n
Motor speed
Nom
n
Introduction
1-3