SAFETY CONTROL APPARATUS, SAFETY CONTROL METHOD, AND CONTROL PROGRAM

摘要

A safety control apparatus includes: control means that controls a control object; control monitoring means that monitors the control means, and upon determination that the control means is abnormal, outputs an abnormal signal; delay means that generates a delay signal and outputs the delay signal, the delay signal being obtained by delaying the abnormal signal output from the control monitoring means for a predetermined period of time; and stop means that stops the control object according to the delay signal output from the delay means. The control monitoring means may output the abnormal signal of pulse form to the delay means upon determination that the control means is abnormal, and the delay means may output the delay signal with pulse interval wider than that of the abnormal signal.

主权项

1. A safety control apparatus comprising:
control means that controls a control object; control monitoring means that monitors the control means, and upon determination that the control means is abnormal, outputs an abnormal signal; delay means that generates a delay signal and outputs the delay signal, the delay signal being obtained by delaying the abnormal signal output from the control monitoring means for a predetermined period of time; and stop means that stops the control object according to the delay signal output from the delay means.