SIEMENS
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Siemens IK PI · 2015
PROFIBUS
Soft starters
Software
SIRIUS 3RW44 Soft Starter block library for SIMATIC PCS 7
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Overview
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. The SIRIUS
3RW44 Soft Starter PCS 7 block library contains the diagnostics
and driver blocks corresponding with the SIMATIC PCS 7 diag-
nostics and driver concept as well as the elements (symbols and
faceplates) required for operator control and process monitor-
ing.
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
assess and monitor the current system status.
Easy integration with the PCS 7 block library
The PCS 7 block library can be used for simple and easy inte-
gration of SIRIUS 3RW44 soft starters into the SIMATIC PCS 7
process control system. The focus here is simple configuration.
The function of the blocks is based on the PCS 7 standard
libraries and is optimally harmonized with the functions of the
SIRIUS 3RW44.
Users who have previously integrated conventional motor feed-
ers via signal blocks and motor or valve blocks or, for example,
already have experience with SIMOCODE blocks, are easily
able to switch to SIRIUS 3RW44.
All blocks required for the automation systems
are provided by
the PCS 7 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 the 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 be-
tween 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 re-
quired 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 out-
put 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 monitoring.
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 disconnection
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 main-
tenance-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.
Types of delivery and license
The SIRIUS 3RW44 soft starter PCS 7 block library supplied on
CD-ROM allows the user to run the required engineering soft-
ware on the engineering station (single license) including the
runtime software for executing the AS blocks in an automation
system (single license). If the AS blocks are to be used in addi-
tional automation systems, the corresponding number of runtime
licenses are required which are supplied without a data carrier.
© Siemens AG 2014