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http://www2.sea.siemens.com | Set 26 | 2008-02-01
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Touch Panel TP 177micro: operator control and monitoring (start, stop, parameters for micro PLC and drives, setpoints)
Logo!Power: power supply for Touch Panel and SIMATIC S7-200
SIMATIC S7-200 micro PLC: central or distributed open-loop and closed-loop control, communication with the drives via USS protocol
SINAMICS G110: execution of PLC commands and continuous control of the speeds of asynchronous motors, as well as integral motor protection functions
Low-voltage asynchronous motor
Automation task:
Several pumps are used for a basin in a water treatment plant. The pumps are to be controlled so that energy efficient response to low as well as high pump load requirements is possible. The pumps are to be controlled and operated via a local unit.
Automation solution:
In the automation solution, the ventilator motors are connected to 4 SINAMICS G110 frequency converters. SINAMICS G110 frequency converters are connected with an S7-200 controller. This enables controlling all pumps in the network via the S7-200. The communication between the SINAMICS G110 frequency inverters and the S7-200 uses the USS protocol. The user program in the S7-200 controller allows the pumps to intelligently work together and to fulfill the requirements regarding energy efficiency. Protection mechanisms for the pumps are already integrated in the SINAMICS G110, hence, there are no costs for classic motor protection. The pumps are operated via a Touch Panel TP 177micro connected to the S7-200 controller.
Startup Code
For the startup we offer you software examples with test code and test parameters as download. The software examples support you during the first steps and tests with your Micro Application Sets. They enable quick testing of hardware and software interfaces between the products described in the Micro Application Sets.
MAS26 S7200 Startup Code
MAS26 WinCC Flexible Startup Code
MAS26 Technical Manual
Applications
Continuous adjustment of motor power in:
Ventilator groups
Compressor groups/cascades
Pump groups/cascades