Abstract:
A method to detect a fault in a CPU of an industrial controller during on-line safety control of real world objects. An application program is complied into assembler instructions. A test application is complied into assembler instructions where the assembler instructions is a subset of the total number of assembler instructions available for the CPU. The application program is downloaded and the test application to a central unit of an industrial controller. The test application is repeatedly executed in the industrial controller. A result from the test application is repeatedly compared with the pre-defined result in the test module. A fault detected in the CPU as the result from the test application does not equal the pre-defined result stored in the test module and the unexpected result of the test application is due to the execution of an assembler instruction of the test application. The execution of the application program is aborted wherein the application program is prohibited from executing the assembler instruction which otherwise would cause the application program to fail.
Abstract:
A wireless vibration sensor suitable for connection to a distributed industrial control system arranged with a wireless network for communication of process data or control information. The wireless vibration sensor includes at least one sensor, a wireless radio transmitter, and a base part for mounting it firmly on equipment or a structure. The wireless sensor is arranged with a battery and a power storage device. A method for powering up the wireless sensor during active cycles is also described.
Abstract:
A live handle switch in the form of a hand operated safety switch for an industrial robot or a machine is described. The live handle comprises a safety certified switch for operating a robot or other machine safely while under manual control. The live handle switch may be comprised in a portable robot controller of the TPU Teach Pendant Unit type. Such a TPU may comprise control means for moving a robot in three or more degrees of freedom. In other aspects of the invention a system comprising a robot and a control unit and the live handle switch are described.
Abstract:
A method, controller and control system for controlling a robot that is used in concert with at least one other robot to perform an operation on one or more work objects. Each robot controller checks whether a common reference value is not acceptable, and if so, provides a signal for the robot to wait before proceeding to the next task. Each robot controller also checks whether the target object is in the correct position or not; and also checks whether or not another robot has stopped. If either another robot has stopped and/or if the work object is not in the right position, the robot waits.
Abstract:
An apparatus for cleaning one or more parts of an automated painting or coating equipment including a source of gas under pressure, a source of a cleaning agent, a mixer for adding the cleaning agent to the gas, and supplying the cleaning agent to the automated painting or coating equipment. The mixer is adapted to release the cleaning agent into the gas under pressure such that the amount of the cleaning agent released varies with time.
Abstract:
A live handle switch in the form of a hand operated safety switch for an industrial robot or a machine is described. The live handle comprises a safety certified switch for operating a robot or other machine safely while under manual control. The live handle switch may be comprised in a portable robot controller of the TPU Teach Pendant Unit type. Such a TPU may comprise control means for moving a robot in three or more degrees of freedom. In other aspects of the invention a system comprising a robot and a control unit and the live handle switch are described.