CAN-BUS
possible to connect 32, 64 or up to 128 nodes per CAN bus line. The data transmission is done via two wires, which are called CAN_High and CAN_Low. A CAN network must be assigned an identical transmission [...] analog and digital signal lines, the CAN bus uses a two-wire cable for digital data transmission. System components such as control devices , sensors and actuators can be connected to this cable either directly [...] message. All nodes in the CAN network continuously listen for messages and, on receipt of a message, check whether the data is relevant for them using the identifier. Messages can thus be received and evaluated
Control with replaceable ROM
g, can only be changed by mechanical action in the controller (DIN 19 237). The control with replaceable ROM can be equipped with memory that can be altered (read-only memory with content that can be changed
Elastomers
Material that can be deformed elastically, that is it can be stretched to a significant extent and after relief it will quickly and practically completely return to its initial shape. Elastomers comprise [...] prevents the transition to the plastic state on the addition of heat. Unlike thermoplastics, elastomers can therefore no longer melt, instead they are broken down chemically if the maximum permissible temperature [...] NBR (acrylic nitrile butadiene): It has good mechanical properties including abrasion resistance. It can be adapted to different tasks by varying the acrylic-nitrile content. Temperature range between -20°
Sequence diagram
working cycle on hydraulic drives. This can be a position-(stroke)-time diagram on which the times when the drive is moving and stationary can be seen. However, it can also be a stroke-velocity diagram (Figure [...] (Figure A 1) from which the piston velocity in the individual phases of the movement can be seen (including, e.g., the acceleration and deceleration ramps on the usage of proportional valves ).
Cylinder
elements, the force can be applied at any point of the stroke and in any size up to the nominal force, the usable stroke can be changed as desired within the structural limits, the velocity can be adjusted to [...] (the most common form of a cylinder): With this approach, forces from just a few N up to 300,000 kN can be applied by a single cylinder during strokes ranging from just a few cm to 20 m. The set-up is very
Plug-in valve, 2-way plug-in valve
replaced by four single valves that can now be operated, e.g. also with overlaps ( Figure Z 16 ). This procedure is cost effective because the same basic 2/2 unit can also be used, given appropriate operation [...] inserted in a bore in accordance with DIN 24 342 and that are sealed upwards by a control plate. They can also be in the form of spool valves as normally closed or normally open valves ( Figure Z 17 ). The [...] switching functions or a proportional valve for continuous functions. The pressure and flow valves can also be operated by conventional means or using proportional valves. The circuit symbols are defined
Electronic Flow Sharing
functions and thus individual valve sections. This can be implemented as required with the help of electronic flow sharing. Example: A hydraulic pump can deliver 100 l/min. Two consumers (actuators) are [...] proportionally, i.e. each valve receives 50 l/min. "Electronic Flow Sharing" can be implemented in valve banks with the CAN-BUS . The electronic control unit onboard knows and monitors each individual
Double acting cylinder
hydraulic fluid through the two connections, the piston can transfer tensile and compressive forces in both stroke directions. This cylinder type can be found in almost all fields of application. Double acting [...] Cylinder in which a pressure difference can act in both directions (forward and return stroke) ( ISO 1219-1 ). Double-acting cylinders have two surfaces that act in opposite directions. The surfaces are
Surface foam
container may form a surface foam which can have a disruptive effect within the hydraulic system. Since surface foam causes cavitation in pumps, it must not be drawn in. This can be ensured by means of various [...] line. More foam tends to form if the surface tension, oil contamination and the like are high. This can be counteracted by using an anti-foaming agent, although these do tend to restrict the air release