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Power supplies for the efficient, flexible use of distributed controllers

The picutre shows the Simatic ET 200SP PS 24 V, 5 Adistributed I/O system.

The output voltage is adjustable up to 28 V in order to compensate for voltage drops on long lines. The extremely flat design and low heat development of the power supplies allow space-saving mounting in distribution boards. They also have an extended ambient temperature range from -30 to +70 °C and an efficiency of up to 90%, which keeps heat development down. On account of the automatic switchover of the input voltage (85-132/170-264 V AC) and comprehensive certifications, the power supplies can be used all over the world. Large power reserves of 1.5 times the rated current for "extra power" for 5 s/min ensure trouble-free switching of loads with a high inrush current and reliable operation. The on/off switch for the 24 volts allows the floating exchange of the distributed I/O modules. Plug-in terminals allow three separate load circuits to be disconnected and so simplify commissioning and maintenance of the system. The current monitor outputs the present output current as a voltage value, and can be wired to an analog input. In this case, 1 V corresponds to the rated current of the power supply, that is 5 A or 10 A. The measurement allows users not only to diagnose the load current at any time and detect faults through an increased current requirement, but also to optimize the energy management.
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Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for 170 years. The company is active in more than 200 countries, focusing on the areas of electrification, automation and digitalization. One of the world's largest producers of energy-efficient, resource-saving technologies, Siemens is a leading supplier of efficient power generation and power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. The company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2016, which ended on September 30, 2016, Siemens generated revenue of €79.6 billion and net income of €5.6 billion. At the end of September 2016, the company had around 351,000 employees worldwide. Further information is available on the Internet at
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David Petry

Siemens AG

Werner-von-Siemens-Str. 65
91052 Erlangen

+49 (9131) 7-26616