| 摘要 |
PURPOSE:To accurately discriminate and detect six kinds of actuation states of a driving device, by measuring the terminal voltage of the input electric source and a plurality of operation switches and converting the voltages to binary logical signals and combining the binary logical signals. CONSTITUTION:An electric source voltage Vac is applied in a driving device 40 composed of a reversibly rotatable motor 49, a limit switches 42, 44, thermostat 46, condenser 48, and a control switch 49. The limit switch 42 stops the forward rotation of the motor 49 and the limit switch 44 stops the reverse rotation of the motor through the control switch 54 in accordance with the revolution of the motor 49. A plurality of voltages V1-V5 are detected from the driving device 40 and the control switch and respective voltages V1-V5 are converted to binary logical signals. And the signals showing six kinds of actuating conditions of the driving device are outputted in accordance with a plurality of combinations of the binary logical signals. And it is detected as to which output terminal has received signals to know the state of driving device 40. |
