SIEMENS
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Siemens IC 10 · 2017
SIRIUS 3RW Soft Starters
3RW44 for High Feature Applications
General data
6
Highlights
•
Soft starting with breakaway pulse, torque control or voltage
ramp, adjustable torque or current limiting as well as any
combination of these, depending on load type
•
Integrated bypass contact system to minimize power loss
•
Various setting options for the starting parameters such as
starting torque, starting voltage, ramp-up and ramp-down
time, and much more in three separate parameter sets
•
Start-up detection
•
Inside-delta circuit for savings in terms of size and equipment
costs
•
Various ramp-down modes selectable: coasting down and
torque-controlled ramp-down, pump stop, combined
DC braking
•
Solid-state motor overload and intrinsic device protection
•
Thermistor motor protection
•
Keypad with a menu-prompted, multi-line graphic display with
background lighting
•
Interface for communication with the PC for more accurate
setting of the parameters as well as for control and monitoring
•
Simple integration to the motor feeder
•
Simple mounting and commissioning
•
Display of operating states and fault messages
•
Connection to PROFIBUS and PROFINET with optional
PROFIBUS DP or PROFINET module
•
External display and operator module
•
Mains voltages from 200 to 690 V, 50 to 60 Hz
•
Can be used up to 60 °C (derating from 40 °C)
Soft Starter ES software program
The Soft Starter ES software is used for the parameterization,
monitoring and service diagnostics of SIRIUS 3RW44 High
Feature soft starters,
see page 14/9.
SIRIUS 3RW44 soft starter block library for SIMATIC PCS 7
The SIRIUS 3RW44 soft starter PCS 7 block library can be used
for simple and easy integration of SIRIUS 3RW44 soft starters
into the SIMATIC PCS 7 process control system,
see page 14/12
.
■
Application
The SIRIUS 3RW44 solid-state soft starters are suitable for the
torque-controlled soft starting and ramp-down as well as braking
of three-phase asynchronous motors.
Application areas
See "Selection aid for soft starters", on page 6/6.
© Siemens AG 2016