Abstract: There is provided a diagnostic apparatus including: a data acquisition unit configured to acquire target data relating to a current value between a power conversion apparatus and a motor; a detection unit configured to detect a peak value in a time series waveform of the target data; a counting operation unit configured to use a frequency counting method to calculate an amplitude of the peak value and a frequency of occurrence of the amplitude; and a diagnostic unit configured to diagnose an abnormality of the motor based on the amplitude and the frequency of occurrence. The diagnostic unit diagnoses that the motor is abnormal when a statistic which is calculated from the amplitude and the frequency of occurrence of the amplitude does not satisfy a predetermined reference.

Abstract: A safety control device causes an appropriate safety function to operate based on the positional relationship between an operator and a hazard source, the positions of which vary from moment to moment. A hazard source detection section and an operator detection section detect an image of the hazard source and an image of the operator, respectively, from an image of a monitoring area taken by an imaging instrument. A shortest distance search section searches for a shortest distance between the image of the hazard source and the image of the operator. A safety function allocation section selects a safety function based on the shortest distance found by the shortest distance search section. A safety signal generation section transmits a safety signal, which indicates the selected safety function, to an external safety-related instrument using an external communication unit.

Abstract: A safety control device causes an appropriate safety function to operate based on the positional relationship between an operator and a hazard source, the positions of which vary from moment to moment. A hazard source detection section and an operator detection section detect an image of the hazard source and an image of the operator, respectively, from an image of a monitoring area taken by an imaging instrument. A shortest distance search section searches for a shortest distance between the image of the hazard source and the image of the operator. A safety function allocation section selects a safety function based on the shortest distance found by the shortest distance search section. A safety signal generation section transmits a safety signal, which indicates the selected safety function, to an external safety-related instrument using an external communication unit.