Description
1.3 Operating principle
SIRIUS 3RW50 soft starter
12
Manual, 09/2019, A5E35628455002A/RS-AA/001
Functions
●
Soft starting with parameterizable starting voltage and ramp up time for a smooth starting
of the drive
●
Soft stopping with parameterizable stopping time for a smooth run-down of the drive
●
Parameterizable current limit for avoiding current peaks
●
Soft torque for smooth ramp up and ramp-down
(avoiding torque peaks by means of torque limitation)
●
Integrated electronic motor overload protection with adjustable tripping class
(Off, CLASS 10A, 10E, 20E)
●
Intrinsic device protection protects the 3RW50 soft starter against overload
●
Ramp-up detection
●
Extended operating and diagnostic functions provided by the optional
3RW5 HMI Standard or 3RW5 HMI High Feature
●
Connection to motor in standard circuit
●
Adjustable RESET MODE (Manual RESET, Remote RESET, Auto RESET) for the
functions of motor protection
●
Extended full motor protection via optional thermistor motor protection for connection of a
temperature switch (e.g. Thermoclick) or a thermistor (e.g. PTC type A)
(alternative to analog output)
●
Optional analog output for displaying a measured value with the aid of an external display
device (alternative to the thermistor motor protection)
●
Optional 3RW5 communication module for integration into bus systems
●
Firmware updates upgrade the firmware of the respective device
●
ATEX / IECEx certification
Further information
You can find an overview of all of the functions of the 3RW5 soft starter in the Catalog IC 10
https://support.industry.siemens.com/cs/ww/en/view/109747945
Further details of the functions can be found in Chapter Functions (Page 119).
