| 摘要 |
A malfunction detector for automatically monitoring and controlling operation of a cyclically operating machine performing one or more operations on work pieces at one or more stations. The detector is of modular construction and includes a circuit for providing a monitoring check cycle and indications that the monitoring cycle has been completed without detecting any malfunctions or that the cycle has not been initiated. Circuitry is also provided for indicating at which individual station any malfunction occurs during the monitoring cycle and for indicating if such malfunction circuitry at any station has become inoperative. Circuitry is also provided for initiating either immediate stoppage of the machine or stoppage at the end of the machine cycle in progress depending on the type of malfunction if the machine is so adapted.
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