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Advantages of Electropneumatic Control Systems
Design of Electropneumatic Control Systems
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In electropneumatic control systems, the control system cannot be depicted in one overall circuit diagram as in a purely pneumatic control system, but rather using two separate circuit diagrams, one for the pneumatic section and one for the electrical components. The following rough description applies for the operation of an electropneumatic control system:
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The electrical signal control unit controls the electrically actuated control valves.Compared to pneumatic controls, electropneumatic controls essentially demonstrate the following advantages:
 Higher reliability due to the lower number of mechanical parts that are required to move or are subject to wear and tear |
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| Less effort and expense for planning and commissioning (particularly for complex controls) |
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| Less time required for installation, particularly when using more modern, more compact assemblies like valve terminals |
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| Simple and rapid modification of open- and closed-loop control strategies using programmable logic controls |
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| Easy exchange of information between several control systems |
For these reasons electropneumatic controls have prevailed in industrial use on a wide front of industrial applications. Today, there are only a few areas where purely pneumatic controls can be found.