SIMATIC – ET 200pro motor starter
GWA 4NEB 950 5661-02 DS 04
8-37
Figure 8-14: Load and motor torque as well as motor terminal voltage for operation at the soft starter
Selection criteria
Note
In the case of the ET 200pro soft starters sDSSte / sDSte and sRSSte / sRSte,
the corresponding soft starter must be selected according to the motor rated
current
(rated current for soft starter must ≥ motor rated current).
U
e
t
t
R
U
S
U
M
M
start-up
M
start-up
with
M
motor
M
load
n
M
motor
with
ET 200pro soft starter
SIRIUS
soft starter
M
B
M
B
= acceleration torque
of the motor