Friction conditions
the contact area and the lubrication condition, the friction displays non-linear behaviour, which can be attributed to characteristic mechanisms of action. A distinction is made between three different
DC solenoid
Advantages : Given corresponding design, very high switching figures are also possible, The armature can be maintained in any intermediate position without the current (the force) increasing excessively.
Load sensing system
pressure and flow rate to reflect the requirements of one or more consumers at any given time. LS systems can be created using a constant pump as well as a variable pump . The highest pressure occurring in the [...] orifices; if the pressure compensator is located upstream, the consumer subjected to the highest load can remain, providing the total for the flow rates required is greater than the max. delivery flow for
Operating mode of a control
existing interlocks. step setting mode: Operating mode for sequential control in which the sequence chain can be set to any step by the operator. inching mode: Operating mode for sequential control in which switching
Filter
hydraulics than in water hydraulics because sealing gaps are used more in which hard particles of dirt can become trapped and then damage the moving surface. For this reason the critical particle size for a
Fieldbus
are available, e.g. ASI (communication and electrical control are transported on the same cable), CAN bus, Interbus, Profibus DP among others. Fieldbuses are to some extent already standardised, e.g. in
Solenoid
current) generates, via the magnetic field in a coil, a mechanical (distance or force). Solenoids can be designed either as linear solenoids (switching solenoid), as proportional solenoids or as control
Semiconductor memory
volumes of data and programs. A distinction is made between: ROM: Read-only memory. Memory content can be neither modified nor erased. Non-volatile type of memory. Programming via masks during fabrication
Controller concepts
enhanced by secondary minor loops for cascaded (multi loop) control systems or state controllers , which can lead to considerably more efficient drive characteristics ( Figure R 22 ).
Stiffness of actuators
annular area: with A K = piston surface area. Cylinders with a large active area and small stroke can be very stiff. In the case of high pressures and strokes, however, they are softer. Stiffness is therefore