Switching symbols
Previous term used for symbols .
Types of friction
Distinction of types of friction according to the movement type. Sliding friction is the movement resistance between bodies whose speed is different in the contact area in terms of amount and/or direc
Low-pressure pump
Hydraulic pump used in the range between around 20 and 70 bar. These are gear pumps which perform various tasks such as generating a rapid traverse velocity or supplying a control circuit and the like
Nominal operating conditions
Conditions for which a device has been designed based on its application. The details — if not already specified in standards — are generally set out in manufacturer's catalogues and identified via th
Flag
Binary memory elements in the program memory for control devices used to store selected binary data (EDIN 19 226, Part 5). A distinction is made between non-retentive and retentive flags where the sig
Logic element
Electrical, electronic, pneumatic, mechanical or hydraulic component capable of performing a logic function ( Figure L 26 ).
Laplace transformation
Laplace transformation is a method for solving linear differential equations with constant coefficients based on given initial conditions. It can also be used for fault functions which give the value
Linear control theory
This assumes there are linear relationships within the . As well as the controller (linear controller), the model ( model of open loop system ) for the controlled subsystem must also behave in a linea
Flow rate
Volume of fluid which flows through a cross-section in one time unit. In hydraulics the flow rate is generally stated in litres per minute (lpm). For example, filling a 10 litre water bucket at the ta