Abstract: Method for time synchronization in a network between at least one master and at least one slave, which is an interrupt-capable network component and uses a timer, which accesses a slave time to generate at least one interrupt recurring at a predefined cycle duration, at a respective trigger point in time that is synchronized with the slave time. When a synchronization message arrives, a time offset between the master time and the slave time is determined in the slave, and a time fraction is determined from the time offset, which corresponds to an integer multiple of the predefined cycle duration of the at least one interrupt. An interrupt offset is then determined from the time fraction and the time offset. At least one time jump is carried out by a synchronization unit in the slave to correct the time offset.

Abstract: For an easily implementable method for position determination using an inductive position sensor with increased precision of the position information, the position sensor generates a measurement signal from which a frequency functional dependent on the excitation frequency is formed, which represents a measure of the noise signal and the excitation frequency of the excitation signal is changed so that the frequency functional is minimized or maximized and the excitation frequency that minimizes or maximizes the frequency functional is used for the excitation signal.

Abstract: In an electromagnetic transport system, a transport route is divided into transport sections, each including at least one transport segment. A section control unit is assigned to each transport section, and a segment controller is assigned to each transport segment. A logistics unit, specifies a destination of the transport units to section control units via the logistics network. Section control units are connected to segment controllers of associated transport segments via a segment network and are designed to: determine a track section for the associated transport section from the destination, determine target values using the track section and transmit the target values to the segment controllers via the segment network. Segment controllers supply current to drive coils using target values and occurring actual values to generate a magnetic field which interacts with drive magnets of the transport units to move the transport units.

Abstract: To provide improved overvoltage protection for a voltage converter for converting an input voltage into a DC output voltage, a first switch-off unit is provided, which is configured to effect a switch-off of at least a part of the voltage converter if the DC output voltage reaches or exceeds a first voltage threshold, in order to reduce the DC output voltage. Furthermore, a second switch-off unit is provided, which is configured to check whether a mean value of the DC output voltage reaches or exceeds a mean value threshold and, if the mean value threshold is reached or exceeded, to effect a switch-off of at least a part of the voltage converter in order to reduce the DC output voltage.

Abstract: An improved method for controlling a lifting device, which moves a load along a first movement direction and along a second movement direction within a specified working area of the lifting device from a starting point to an end point. Individual movements are planned for the first movement direction and for the second movement direction, by which the load is moved further along the movement directions and brought to a newly specified end point.

Abstract: In order to reduce the cabling complexity of an electric motor having an encoder, an electric motor which can be connected to a control unit in order to receive an actuating signal from the control unit has an encoder port which is designed to receive an encoder signal from an encoder. Furthermore, the electric motor has a signal port which is designed to transmit the encoder signal to the control unit.

Abstract: In order to enable a moveable part of an adjusting device of the wind power plant to be held securely on a wind power plant, drive axles are tensioned against each other prior to the holding action, by at least one drive axle being rotated relative to the other drive axles, and by maintaining a tension of the drive axles achieved at the beginning of the holding action by control of the drive axles and by implementing a position control of the drive axles, which controls the drive axles to the respective starting positions of the drive motors of the drive axles at the beginning of the holding action.

Abstract: In order to implement a secure monitoring function for a long-stator linear motor or planar motor, the invention proposes that at least one first measurement value of a first sensor is compared to a predefined plausibility threshold value, and in the event of said plausibility threshold value being exceeded by the first measurement value, an error is identified and an action is triggered.

Abstract: In order to implement a method for data flow control in a network with reduced overhead, a first subscriber transmits data symbols in data frames to a second subscriber. The second subscriber forwards and/or processes the data frame. If there is a delay in forwarding and/or processing the data frame, the second subscriber instructs the first subscriber to pause the transmission of the data frames with a granularity of one data symbol. After the pause, the first subscriber continues to transmit the data frames with a granularity of one data symbol.

Abstract: Various aspects of the present disclosure are directed to a transport device in the form of a planar motor. In one example embodiment, the transport device includes at least one transport segment that forms a transport plane, at least one first transport unit that moves at least two-dimensionally on the transport plane, and a plurality of drive coils arranged on the at least one transport segment. The transport device further includes at least one first and at least one second magnet group arranged on the at least one first transport unit. Each magnet group has a plurality of drive magnets with a different direction of magnetization arranged one behind the other in a specific arrangement direction with a specific pole pitch. The transport device further includes a first coil group having a first plurality of drive coils, and a second coil group having a second plurality of drive coils.

Abstract: In order to enable safe position determination for a position encoder over the entire range of movement, a defined electrical interference signal is applied to at least one secondary winding of the position encoder, and this generates an electrical response signal, which is superimposed on the measurement signal, and the response signal is evaluated for error detection in a signal evaluator.

Abstract: A method for inductive energy transmission between a primary part and a secondary part, wherein a primary current is introduced into a transmitting coil arranged on the primary part in order to create a first magnetic field which induces an electrical AC voltage in a receiving coil arranged on the secondary part, which electrical AC voltage causes an electrical secondary current at the secondary part and thus a power flow to at least one load connected to the receiving coil, which power flow comprises an uncompensated active power, it is provided that a compensation unit introduces a compensation current into a secondary-side coil, which compensation current generates a second magnetic field which is superimposed on the first magnetic field and induces a compensation voltage in the transmitting coil.

Abstract: A transport device in the form of a planar motor having at least one transport segment which forms a transport plane and having at least one transport unit, which can be moved at least two-dimensionally in the transport plane, to allow more versatile process management, is provided in the transport device. At least one coupling apparatus for releasably coupling the transport unit to the coupling unit is arranged on the transport unit and, on the coupling unit in each case, the transport unit and the coupling unit can be coupled, at least temporarily, by the coupling apparatuses to form an assembly by way of a relative movement in the transport plane. The coupling apparatuses interact in the coupled assembly in order to limit a relative movement between the transport unit and the coupling unit in at least one degree of freedom of movement.

Abstract: To enable a determination of the position of a transport unit in a transport device, having at least one transport segment along which at least one transport unit is moved at least one-dimensionally and on which a plurality of position sensors spaced apart from each other in the direction of movement are provided, independently of the input of heat during the operation of the transport device, a plurality of temperature sensors, spaced apart from each other in the direction of movement, are provided for detecting a local segment temperature of each transport segment and/or that a temperature model for calculating the local segment temperatures is stored in the control unit and that the control unit is configured to correct the position of the transport unit using a predefined correction model on the basis of the determined local segment temperatures to incorporate a thermal expansion of the transport segment.

Abstract: A method for operating a multilevel converter in flycap topology, in which the multilevel converter has at least two semiconductor switches controlled by control pulses of variable pulse durations within a control period that recurs at a control frequency to selectively interconnect a voltage source connected to an input of the multilevel converter, an output of the multilevel converter, and at least one auxiliary capacitor arranged between the input and the output, for generating an output voltage. The method includes using at least one oscillation parameter that describes the oscillation behavior of at least one harmonic of an electrical measured variable, at least one correction pulse duration is determined for a future control pulse to reduce the amplitude of the at least one harmonic and at least one semiconductor switch is controlled with a control pulse of the determined correction pulse duration.

Abstract: For determination of the position of a movable component with a plurality of position magnets relative to a stationary component with a plurality of position sensors, it is provided that the sensor responses are detected for a group of position sensors in the region of the movable component, sensor model responses of the group of position sensors are determined from a sensor model for a plurality of assumed different relative positions of the movable component relative to the stationary component, the sensor model responses are compared with the sensor responses and the assumed relative position with the smallest deviation between the sensor model responses and the sensor responses is used as the relative position of the movable component.

Abstract: Hot foil stamping machine stamping a foil onto a substrate, which improves stamping quality under changing conditions, includes a control unit for controlling the temperature of the stamping interface surface to a predefined desired temperature. The control unit receives at least an actual temperature of the heating plate from the at least one temperature sensor and provides a manipulated variable to the at least one heating device. Further, the stamping machine includes a state observer for estimating an actual temperature of the stamping interface surface of the at least one stamping plate based on a physics-based analytical model of the heat transfer between the heating plate and the stamping plate. The control unit also includes a feedback controller for calculating the manipulated variable for a heating device based on the predefined desired temperature and the estimated actual temperature of the stamping interface surface provided by the state observer.

Abstract: A method for standstill control of a multi-body system (MKS) having at least one drive body and at least one friction body mechanically coupled to the drive body. A static friction acts on the friction body, a velocity of one of the bodies of the MKS is determined as measurement velocity subject to a measurement noise and converted in a dead zone element to a dead zone velocity. The dead zone velocity assumes the value of zero for values of the measurement velocity above a value of zero and below a positive dead zone limit, and assumes the value of the measurement velocity for values of the measurement velocity above the positive dead zone limit. The dead zone velocity is provided to a velocity controller as an actual velocity for controlling.

Abstract: In order to at least temporarily increase the throughput of transported objects in a transport device in the form of a planar motor, without negatively influencing the movement of the transport units, at least one engagement portion is provided on each of the at least two transport units, it being possible for the at least two transport units to be moved in succession in the transport plane in a direction of movement into an engagement position in which the engagement portions of the transport units are at least partially engaged. The engagement portions are designed to overlap with one another in the engagement position at least in the direction of movement such that a total extent of the transport units in the direction of movement is smaller than a sum of the individual transport-unit extents of the transport in the direction of movement.

Abstract: In order to specify a method, which is improved in comparison to the prior art, for monitoring an electrical switching arrangement having at least two channels, which each electrically conductively connect an electrical source supplying the respective channel, forming an electrical supply quantity, to an output of the respective channel, the switching arrangement is fed not only an external safety signal, from which an internal safety signal is respectively generated for the at least two channels in order to therewith control a voltage interrupter connected in series in the respective channel, but also a pulsed diagnostic signal, which is superimposed on the internal safety signals in order to alternately open and close again the voltage interrupters connected in the respective channels and to thus respectively alternately interrupt the supply quantities appearing in the respective channels.