Initial position
Intended signal setting of storage elements in a control device as a prerequisite for the implementation of the program. In the signal range an intended signal state as the prerequisite for the realis
Velocity error
Error between setpoint and actual value caused by a velocity. Here the actual value is behind the setpoint. For this reason the velocity error is also termed the "following error". The velocity error
Closed circuit
Basic design for a hydraulic drive in which the fluid circulates from the pump to the actuator and from there straight back into the suction line of the pump. The main difference between this and an "
Total efficiency
The total efficiency of a hydraulic device or system is always given by the product of the volumetric and the hydromechanical efficiency (Figure G 7) :
Total pressure
Sum of the static and dynamic pressure elements in a location (DIN 24 312).
Device oriented plan
Representation, depiction of devices that are required or present in a system. The device oriented plan differs from the block diagram or signal flow diagram , which reflects the functional interactio
Internal feedback control
that within a device or a closed system contain, e.g. a continuously adjustable valve or a linear amplifier , mostly a closed circuit position control system that improves the accuracy and reproducibi
Straight pipe fitting
Fitting for the connection of two pipes on which both port openings lie on one axis.