Siemens SIRIUS 3RW55 - Torque Control

Functions
7.3 Run-down
SIRIUS 3RW55 soft starter
98 Manual, 08/2018, A5E35630887002A/RS-AB/002
7.3.3
Torque control
Operating principle
Torque-controlled stopping extends the stopping of the load. The motor is powered down on
a linear, negative torque ramp. This function is activated if there is a need to prevent the load
from being stopped abruptly.
Application
● For conveyor belts, to prevent the conveyed materials from toppling.
● Applications with a low mass inertia or a high counter-torque.
Diagram
①
Stopping torque
t
1
... t
2
Stopping time
M
e
Rated torque