Abstract: Method for removing injection-molded items from an injection-molding machine via a robot and device for performing method. The injection-molding machine and the robot each having a separate drive, and each drive is acted on by a separate open- and closed-loop control unit that is separately programmable. At least the open- and closed-loop control unit of the robot contains a computing element, and the injection-molding machine is equipped with at least one signaling device for detecting a position of the mold. The method includes applying a signal of the signaling device to the open- and closed-loop control unit of the robot, recalculating a motion sequence of the robot based of the open- and closed-loop control unit after each removal cycle, and for each next removal cycle, moving the robot from a start position by a timer at a recalculated start time.

Abstract: Method for removing injection-molded items from an injection-molding machine via a robot and device for performing method. The injection-molding machine and the robot each having a separate drive, and each drive is acted on by a separate open- and closed-loop control unit that is separately programmable. At least the open- and closed-loop control unit of the robot contains a computing element, and the injection-molding machine is equipped with at least one signaling device for detecting a position of the mold. The method includes applying a signal of the signaling device to the open- and closed-loop control unit of the robot, recalculating a motion sequence of the robot based of the open- and closed-loop control unit after each removal cycle, and for each next removal cycle, moving the robot from a start position by a timer at a recalculated start time.

Abstract: A method for position and/or speed control of a linear drive utilizing a converter having a control unit and being coupled to a motor of the linear drive. The method includes determining, in a sensor-free manner, a motor position, generating a motor position signal, generating an acceleration signal utilizing an MEMS accelerometer provided in the control unit and arranged on a moving part of the linear drive, mathematically converting the motor position signal and the acceleration signal to a speed signal, and utilizing the speed signal to control the linear drive.

Abstract: The invention relates to a method and a circuit layout for the position and/or speed control of a linear drive, in particular a servo drive for a linear robot. An electric motor is supplied via a converter (3) with a control unit (4) and the motor position is determined, in particular in a sensor-free manner or via a position sensor (7). This motor position signal and an acceleration signal generated via an accelerometer (5) provided in the control unit (4) and arranged on the moving part of the linear drive are mathematically converted to a speed signal. This speed signal is used for controlling the drive. The accelerometer (5) is embodied as a microelectromechanical system (MEMS) and integrated into the entrained control unit (4).

Abstract: A switching device for controlling at least two motors has a single converter, wherein the at least two motors are connected to the converter by a power line and a feedback line, respectively. At least one logic module is connected to the converter and evaluates signals received from the converter to generate a control signal for controlling the motors. The converter has an interface for selecting one of the motors to be controlled, wherein the interface is connected by a signal line to the at least one logic module. The power lines and the feedback lines each have a switch. The at least one logic module is adapted to switch with the control signal at least two of the switches for switching the respective power line and the respective feedback line of the motor to be controlled.

Abstract: A switching device for controlling at least two motors has a single converter, wherein the at least two motors are connected to the converter by a power line and a feedback line, respectively. At least one logic module is connected to the converter and evaluates signals received from the converter to generate a control signal for controlling the motors. The converter has an interface for selecting one of the motors to be controlled, wherein the interface is connected by a signal line to the at least one logic module. The power lines and the feedback lines each have a switch. The at least one logic module is adapted to switch with the control signal at least two of the switches for switching the respective power line and the respective feedback line of the motor to be controlled.

Abstract: A device for error detection and mutual locking of at least two switches that sequentially connect motors to a converter has a converter sending switching signals to the at least two switches. The converter, prior to each switching action, checks a switched-off state of all of the at least two switches. The converter performs a current measurement for checking the switched-off state.