| 摘要 |
PURPOSE:To simplify a circuit and to make the entire circuit of a control system compact, by constituting the circuit with one delay element, one flip-flop and several logical gates. CONSTITUTION:An FF31 is set with the 1st control signal, that is, MOTOR- START signal and reset with the 2nd control signal, that is, the MOTOR-STOP signal. An exclusive logical sum circuit 32 takes a signal delaying and inverting an output signal from a terminal Q of the FF31 at a delay element 33 as an input signal. The 1st NAND logical operation circuit 35 takes a signal obtained from the output signal from the terminal Q of the FF31 through delay and inversion as one input and the output signal from the circuit 32 as another input. In the 2nd NAND logical operating circuit 37, a signal obtained from the output signal at the terminal Q of the FF31 is taken as one input and the output signal of the circuit 32 is taken as another input. |
