Hakuteksti "*".

Functional unit responsible for controlling the overall process and superordinate to the hierarchical control circuits (DIN 19 237). The core element of this kind of overall control unit (control syst

Block diagram

Position which control elements take if parts of them become defective or fail. The fail safe position triggers either a backup operation or secures a position which ensures the safety of the system (

Sub-field of diagnostic technology, in which an electronic system, e.g. a control or a measurement system regenerates a simulation using (generally present) microprocessors, which are used to monitor

Hydraulic motor from the group known as annular gear motors which operate in accordance with the planetary principle. The distinguishing feature of planetary motors is how lots of displacement chamber

Seated valve

Valve that keeps the (lower) outlet pressure (secondary pressure) p 2 constant even with changing inlet pressure (primary pressure) p 1 . This action is achieved by a valve cone, held open by a spring

Surface area of the piston Ap minus the surface area of the piston rod Ar St: When performing an accurate force measurement of a hydraulic cylinder with a dual effect and a piston rod on one side ( di

All variables required in valves to convert the input signal into an . They are mainly used for the purpose of power gain (amplification) (DIN 24 311).

Positions for the moving parts of a hydraulic unit that define its operating function. The working positions during switching processes are the switching positions , for continuous change on the other