Soft Torque - Siemens SIRIUS 3RW52 Manual

Functions

7.6 Soft Torque

7.6 Soft Torque
Principle of operation of Soft Torque during starting
The Soft Torque function reduces the drive acceleration rate shortly before the motor
reaches its rated speed. This produces an almost linear speed curve. This helps to ensure
smooth movement of a conveyor belt, for example, and so prevent fragile goods on the belt
from tipping over.
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102
Torque without Soft Torque
Torque with Soft Torque
Torque with direct start
Rated motor speed
Motor speed without Soft Torque
Motor speed with Soft Torque
SIRIUS 3RW52 Soft Starter
Manual, 01/2019, A5E35630451002A/RS-AD/004