SIEMENS
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Siemens IC 10 · 2017
Parameterization, Configuration and Visualization with SIRIUS
SIRIUS 3RW44 Soft Starter block library for SIMATIC PCS 7
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Overview
The SIRIUS 3RW44 soft starter PCS 7 function block library can
be used for simple and easy integration of SIRIUS 3RW44 soft
starters into the SIMATIC PCS 7 process control system. The
SIRIUS 3RW44 soft starter PCS 7 function block library contains
the diagnostics and driver blocks corresponding with the
SIMATIC PCS 7 diagnostics and driver concept as well as the
elements (symbols and faceplates) required for operator control
and process monitoring.
Integrated functionality for optimal process control
for all process control systems
In addition to the general sensor technology, the motor feeder
data is increasingly being integrated into the process control
system. By integrating the SIRIUS 3RW44 soft starters into the
process control system it becomes possible to prevent errors in
the motor feeder simply and reliably, or to detect these errors
quickly and rectify them. Downtimes are reduced to a minimum
or can be prevented before they happen.
For example, the output and display of the key measured values
calculated by the 3RW44 is also a good aid for being able to as-
sess and monitor the current system status.
Easy integration with the PCS 7 Function Block Library
The PCS 7 function block library can be used for simple and
easy integration of SIRIUS 3RW44 soft starters into the SIMATIC
PCS 7 process control system. The focus here is simple config-
uration. Functioning of the blocks is based on the PCS 7 stan-
dard libraries and is optimally harmonized with the functions of
the SIRIUS 3RW44.
Users who have previously integrated motor feeders into
conventional technology via signal blocks and motor or valve
blocks or, for example, already have experience with
SIMOCODE modules, are easily able to switch to
SIRIUS 3RW44.
All blocks required for the automation systems are provided by
the PCS 7 function block library – as are the block symbols and
faceplates for the operator station required for monitoring and
control.
With the integration of the SIRIUS 3RW44 into SIMATIC PDM, the
system-wide device parameterization and diagnostics of the
SIRIUS 3RW44 soft starters are possible from a central point.
Motor block for direct control of the drive
The low-voltage motors started and protected by SIRIUS 3RW44
soft starters can be integrated into the process automation via
the motor blocks. This means that they form the interface
between the process control system and the motors controlled
by the SIRIUS 3RW44.
To reduce the amount of configuring work required, functions for
signal processing and technological functions are integrated
into one motor block.
The important measured value – the current in the motor feeder
– is recorded via the 3RW44 and monitored for motor protection.
The motor current is accessible from the I&C system via the
motor blocks.
The block symbols and faceplates for the motor blocks display
the motor feeders on the operator station and provide all the
required information for monitoring and control as well as
detailed diagnostics.
Faceplate of the motor block
Evaluation of additional motor feeder measurements
All measured values calculated by the soft starter, such as
current, voltage and output of the feeder, are displayed and
output via the measured value blocks. A key advantage here is
that, where required, a wide range of information on important
motor feeder measurements is available, e. g. for load monitor-
ing.
The 3RW44 is not only able to detect measured values here, but
also to react if these values are exceeded or undershot,
for example, via custom settings – e. g. with a motor shut-down
or with a warning.
The faceplate for the measured values is accessed from the
motor block faceplate.
Faceplate for measured values
Evaluation of maintenance-related motor feeder data
The 3RW44 has powerful functions to detect and monitor
maintenance-related motor feeder data. For example, the
operating and downtimes of the motor, operating cycles and
overload tripping events are detected and stored directly on the
device. If required, the information already on the device is
available via the statistics block in the I&C system. The display
is provided on a separate faceplate for the statistics block on the
operator station.
More information
Technical specifications,
see
Programming and Operating Manual for the "PCS 7 Soft Starter 3RW44
V6.2/V7.1" and "3RW44 Soft Starter PCS 7 Library V8 Migration V8.0 + SP2"
block libraries,
see
Getting Started for the "PCS 7 Soft Starter 3RW44 V6.2/V7.1" and
"3RW44 Soft Starter PCS 7 Library V8 Migration V8.0 + SP2" block libraries,
© Siemens AG 2016