摘要:
An AC voltage controller has two transistors which can be positioned between two AC voltage terminals in series with a load. The two transistors are connected in series in such a way that their respective source terminals are connected to one another. The AC voltage controller also contains a signal generator for generating a switching signal for actuating the two transistors, a buffer which is connected downstream of the signal generator and which is set by the signal generator in order to actuate the two transistors. An actuation circuit or driver circuit is connected downstream of the buffer, for the purpose of actuating the two transistors in accordance with the set state of the buffer. A current-limiting circuit is provided for limiting or switching off the current through the two transistors in the case of an excessively large current through the load.
摘要:
An actuator for the power control of at least one connected load has a load detection device for detecting a magnitude of a load and/or a type of a load of the at least one as a measurement variable relating to the load of the at least one consumer. A communication interface receives at least one manipulated variable for the power control of the at least one consumer and transmits the measurement variable detected by the load detection device. Actuators of this type may be integrated into an energy management system, such as of a building automation system, for example.
摘要:
A building automation and building information system has a central unit, at least one control unit and first components. The central unit is connected to the at least one control unit via a bidirectional data line, as means for reception of data from the at least one control unit, and means for open-loop and/or closed-loop control of the at least one control unit. Each control unit is associated with at least one first component, to which the control unit is connected by radio. The control unit has means for open-loop and/or closed-loop radio control of the associated first components. The first components associated with each control unit can be connected to one another by radio. The central unit, the at least one control unit and the first components each have a plug-and-play capability.
摘要:
An actuator for the power control of at least one connected load has a load detection device for detecting a magnitude of a load and/or a type of a load of the at least one as a measurement variable relating to the load of the at least one consumer. A communication interface receives at least one manipulated variable for the power control of the at least one consumer and transmits the measurement variable detected by the load detection device. Actuators of this type may be integrated into an energy management system, such as of a building automation system, for example.
摘要:
A multifunctional electricity outlet for a building automation and building information system has a first interface to a line to the electricity supply, and a second interface to an electrical load. Furthermore, the multifunctional electricity outlet contains an apparatus for measurement of at least one electrical variable, a memory for the at least one measured electrical variable, a communication module with a third interface for sending and receiving data and a control module for producing a profile for at least one of the measured electrical variables over time and for comparison of the profile over time with predetermined stored profiles of loads which can be connected, over time, in order to determine the load which is connected to the second interface.
摘要:
A building automation and building information system has a central unit, at least one control unit and first components. The central unit is connected to the at least one control unit via a bidirectional data line, as means for reception of data from the at least one control unit, and means for open-loop and/or closed-loop control of the at least one control unit. Each control unit is associated with at least one first component, to which the control unit is connected by radio. The control unit has means for open-loop and/or closed-loop radio control of the associated first components. The first components associated with each control unit can be connected to one another by radio. The central unit, the at least one control unit and the first components each have a plug-and-play capability.
摘要:
An appliance with a hazardous device contains a first controller controlled by a first control element which, in turn, is controlled by a second controller by use of a first switching element. An electrically controllable protection device is provided and is controlled by a second control element, it is possible to deactivate the protection device. A storage capacitor is provided between the first and the second control element and supplies the second control element with energy for a control pulse and is charged by the first control element when the first controller is switched off and is discharged by the first switching element when the first controller is switched on. This circuit generates a safe control circuit. In the event of a possible hazardous state, either the first controller is no longer supplied with energy or the protection device cannot be deactivated, and so danger to a user is precluded.
摘要:
A method and apparatus for maintaining a glue applicator unit ready for operation after short or long term stoppages of a gluing operation. During short term stoppages, the applicator unit is pivoted away from the workpieces to which the glue is to be applied to a first rest position at which the nozzles are brought into tight engagement with a sealing means that includes a yieldable surface to surround and overlie the nozzles to provide an airtight seal. During long-term stoppages the glue applicators are pivoted beyond the first rest position to a second rest position at which the nozzles are in communication with a drain channel and purge fluid is sent through the applicator to pass through the nozzles and carry the glue and purge fluid to a collecting container, so that the nozzles are clear for subsequent start-up of the glue-applying operation.
摘要:
An injection device is proposed for internal combustion engines whose vane cell pump has two channels 23, 22. Each channel begins at the end portion of the compression recess 21 and discharges into the congruent openings 24, 25 of the support ring 17 and of the receiving ring 16, respectively. These openings are embodied as grooves and are disposed near the rotary wall 28 of the housing 10 of the injection device.
摘要:
The pump piston in a fuel injection pump is provided with longitudinal grooves which provide communication between the pressure chamber and the fuel supply chamber. An annular groove on the pump piston connects the longitudinal grooves so that communication between the pressure chamber and the fuel supply chamber is interrupted only after onset of the axial pressure stroke regardless of prior piston rotation.