Abstract: A motor apparatus includes a motor having a first active part and a second active part, the first active part having a plurality of separately controllable windings, a control unit comprising a processing unit and for each of one or more of the windings a motor module, wherein the motor module has a power converter.

Abstract: A motor apparatus includes a motor having a first active part and a second active part, the first active part having a plurality of separately controllable windings, a control unit comprising a processing unit and for each of one or more of the windings a motor module, wherein the motor module has a power converter.

Abstract: In a transfer device for workpiece carriers (18), with a number of segments (10, 10?, 10?) in which a control unit (14, 14?, 14?) respectively activates a linear motor (12, 12?, 12?), in a phase of the transfer of the workpiece carrier (18) from a first segment (10) to a neighbouring segment (10?) synchronization of the linear motors (12, 12?) is no longer effected on the basis of control commands of a central controller but instead the control unit (14) of the first segment (10) makes itself the master (S18) and subjugates the control unit (14?) of the neighbouring segment (10?) as the slave (S20). A position measuring device (22, 24) makes it possible for the master control unit (14) to carry out speed control for the workpiece carrier (18). The control unit (14?) receives information on the commutation angle and the actual force value and can therefore issue the control commands to the associated linear motor (12?) for the control process.

Abstract: In a transfer device for workpiece carriers (18), with a number of segments (10, 10?, 10?) in which a control unit (14, 14?, 14?) respectively activates a linear motor (12, 12?, 12?), in a phase of the transfer of the workpiece carrier (18) from a first segment (10) to a neighbouring segment (10?) synchronization of the linear motors (12, 12?) is no longer effected on the basis of control commands of a central controller but instead the control unit (14) of the first segment (10) makes itself the master (S18) and subjugates the control unit (14?) of the neighbouring segment (10?) as the slave (S20). A position measuring device (22, 24) makes it possible for the master control unit (14) to carry out speed control for the workpiece carrier (18). The control unit (14?) receives information on the commutation angle and the actual force value and can therefore issue the control commands to the associated linear motor (12?) for the control process.

Abstract: The invention relates to a method for protecting against over voltage that is simple to produce, economical, compact and is simultaneously effective against over voltage for a converter (8) provided for supplying an electric motor (1) comprising at least one motor phase (L1, L2, L3). Said converter comprises an electric intermediate circuit (10) and several half-bridges (13a, 13b, 13c) that are connected in parallel in the intermediate circuit and respectively comprise a circuit breaker (15a, 15b, 15c) on the high potential side and a circuit breaker (17a, 17b, 17c) on the low potential side, in addition to an intermediately connected phase connection (14a, 14b, 14c).

Abstract: A method for identifying a control path of a controlled system, and more particularly to a method for identifying a control path in the presence of deterministic perturbations is described. At least one deterministic perturbation correcting signal is determined in a first identification process, and the perturbation correcting signal is stored in the form of a function. A control path of the controlled system is identified in a second identification process by adding to the controlled system the at least one stored deterministic perturbation correcting signal with a negative feedback. The method can be used with machine tools, production machines and/or robots which demand a high control accuracy and/or a high-quality control characteristic. In particular, perturbation effects due to slot latching in motors, in particular linear motors, can be minimized.

Abstract: In a method for active compensation of mechanical vibrations and/or deformations in industrial processing machines, a main drive in a primary axis executes a first motion to move a mechanical machine element with an auxiliary drive in a secondary axis for execution of a second comparably more fine-tuned motion to move a machine point by the auxiliary drive in such a way that the movement of the machine point is composed of superimposed portions of the first and second motions. The first motion of the machine point moves hereby in accordance with a predetermined desired position value, and the second motion so compensates vibrations and/or deformation of the mechanical machine point that the machine point assumes the desired predetermined position.

Abstract: A device for determining the position of a tool and/or a load-bearing machine component of a machine tool or production machine includes a primary crossbeam arranged between two movable support elements and supporting the tool or the machine component, and a rigid secondary crossbeam which is also supported between the support elements. A contactless measuring unit is connected with the crossbeam and constructed to measure a deflection of the primary crossbeam relative to the secondary crossbeam. The deflection is hereby commensurate with a position of the tool and/or a load-bearing machine component and may depend on the acceleration force, weight and/or processing force exerted on the tool or the machine component.

Abstract: A method for identifying a control path of a controlled system, and more particularly to a method for identifying a control path in the presence of deterministic perturbations is described. At least one deterministic perturbation correcting signal is determined in a first identification process, and the perturbation correcting signal is stored in the form of a function. A control path of the controlled system is identified in a second identification process by adding to the controlled system the at least one stored deterministic perturbation correcting signal with a negative feedback. The method can be used with machine tools, production machines and/or robots which demand a high control accuracy and/or a high-quality control characteristic. In particular, perturbation effects due to slot latching in motors, in particular linear motors, can be minimized.

Abstract: In a method for active compensation of mechanical vibrations and/or deformations in industrial processing machines, a main drive in a primary axis executes a first motion to move a mechanical machine element with an auxiliary drive in a secondary axis for execution of a second comparably more fine-tuned motion to move a machine point by the auxiliary drive in such a way that the movement of the machine point is composed of superimposed portions of the first and second motions. The first motion of the machine point moves hereby in accordance with a predetermined desired position value, and the second motion so compensates vibrations and/or deformation of the mechanical machine point that the machine point assumes the desired predetermined position.