| 摘要 |
PURPOSE:To prevent the occurrence of an accident by outputting a stop signal from the 2nd computer when the signal output of the 1st computer which controls equipment to be controlled becomes abnormal, and stopping the objective equipment. CONSTITUTION:The 1st computer 2 reads a command signal inputted from an operation command storage device 1 and outputs an operation signal S1 from an interface 3 so that control motors of the objective equipment 4 move to X, Y, and Z coordinates. Then, the computer 2 performs a series of operations under according to commands from the device 1 and after the operations are completed, the signal S1 is ceased or replaced with another stop signal S0 to stop the control motors of the equipment 4. The 2nd computer 5, on the other hand, is controlled in synchronism with the computer 2 to output the signal S0 when the stop signal is sent, thereby stopping the control motors of the numerical control equipment. |
