elements of a control chain

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Elements of a Control Chaind The principle of the control chain is used for the preparation of the circuit diagram. Every e lement of a control chain has a certain task to per form in the processing and further transmission of signals. This structuring of a system into functional blocks has proven itself in the following tasks:  Arrangement of the elements in the circuit diagram  Definition of the nominal sizes, nominal current and nominal voltage of components  Set-up and commissioning of the controller  Identification of the components for maintenance work Single-Acting Cylinder Compressed air is applied to only one side of t he single-acting cylinder. The piston rod side of the cylinder is ve nted to atmosphere. Single-acting cylinders can perform work in only in t he advance direction of travel. The piston rod is driven inwards by the force of a built-in spring or by external forces.

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