Motion monitoring
AssigneeSiemens Aktiengesellschaft
InventorsJürgen Büssert, Thomas Heimann, Jürgen Lange, Rolf-Dieter Pavlik, Hagen Terpitz
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Abstract
There is described a method for motion monitoring of a machine, comprising a sensor, wherein a sensor signal is transmitted from the sensor to a controller and/or to a drive device, a failsafe controller or drive device being employed as controller or drive device. The controller or drive device comprises three independent monitoring devices in which the sensor signal is formed from a first and a second redundant actual position value.
Claims12
A method for motion monitoring of a machine having a sensor assigned to a power unit, comprising:
- transmitting a sensor signal from the sensor to a failsafe controller, wherein the failsafe controller incorporates redundantly configured monitoring devices for evaluating the sensor signal, wherein each monitoring device monitors the sensor signal independently of the respective other monitoring device and is capable to generate a control signal for activating a first or second shutdown path, wherein
- the first shutdown path leads via a motor module and the second shutdown path leads via a motor controller as different components of the drive device and
- the power unit is influenced by the motor module and/or the motor controller in accordance with the control signal received via the first or second shutdown path, and
- transmitting the sensor signal to a drive device which is implemented at least partially in a failsafe manner.
An apparatus for motion monitoring, comprising:
- a motor;
- a single sensor for the motor;
- a power unit, the single sensor being assigned to the power unit;
- a drive device for the motor;
- a failsafe controller assigned to the drive device,
- wherein a sensor signal generated by the sensor is processed at least by the failsafe controller which includes redundantly configured monitoring devices,
- wherein a first or second shutdown path can be activated by the redundantly configured monitoring devices, and
- wherein the first shutdown path leads via a motor module and the second shutdown path leads via a motor controller as different component of the drive device,
- wherein the power unit is influenced by the motor module and/or the motor controller in accordance with a control signal received via the first or second shutdown path, and
- wherein the sensor signal is transmitted to the drive device which is implement at least partially in a failsafe manner.
A non-transitory computer readable storage medium encoded with a computer program, wherein the computer program when executed carries out the steps comprising:
- transmitting a sensor signal from a sensor to a failsafe controller, wherein the failsafe controller incorporates redundantly configured monitoring devices for evaluating the sensor signal, wherein each monitoring device monitors the sensor signal independently of the respective other monitoring device and is capable to generate a control signal for activating a first or second shutdown path, wherein
- the first shutdown path leads via a motor module and the second shutdown path leads via a motor controller as different components of the drive device and
- the power unit is influenced by the motor module and/or the motor controller in accordance with the control signal received via the first or second shutdown path, and
- transmitting the sensor signal to a drive device which is implemented at least partially in a failsafe manner.
Dependencies are inferred from the claim text.