Time-based workflow control
time. For example, timer elements, time counters, gear shift drums with a constant rotation speed can be used to produce the switching conditions. The term timing control is reserved for the time-dependent
Control algorithm
algorithm is described by the mathematical relationship between the input and output variables or can be derived from this (DIN 19 226).
Blowing past piston seals
of a double acting hydraulic cylinder, in the case of a poorly designed piston seal, pressure fluid can flow from one side of the piston to another in a short time, normally if very rapid pressure changes
Power density
the compactness of the device (drive). A high power density thus means that large amounts of power can be transferred with relatively small components.
LAN
network may be connected with each other in the same private area. A gateway to the public network can be arranged to allow communication with remote local networks too. A LAN is used for data transmission [...] fibre-optic, copper cables) are predominantly used as the transmission medium to local networks. They can be used on an exclusive or shared basis for this purpose. Exclusive use is possible for networks with
Signal selector
set such that the task variable reaches its setpoint, the signal selector for the reference variable can also be called setpoint signal selector (DIN 19 226).
Supply of a control unit
functional units to supply the technical control and feedback control devices with energy. The term supply can be more clearly specified by adding supplementary terms as a prefix according to the type of energy
Delay valve
air container. After the container is filled, a valve is reversed ( Figure V 24 ). The fill speed can be configured using a throttle.
Non-contact seals
surfaces involved in the sealing process do not touch. Due to the remaining gap, non-contact seals can never seal completely. The most important representatives of non-contact seals are the gap seals, the
Sampling feedback control
discrete time operation. If the sampling frequency is high enough (quasi continuous), the process can be used for continuous control circuits.