| 摘要 |
PURPOSE:To enable either a power source line or a control signal line to be operated by enabling the lines of a power source and control signal to be turned ON/OFF from an external section, and by contriving the power source to be fed to a motor and a solenoid when both the lines are ON. CONSTITUTION:To the terminals B1, B2 of a solenoid controlling circuit 10, a DC24V power source is fed, and to terminals C1, C2, control signal is fed. By the control signal, via the control signal interface 20 of a photo-coupler, the transistor 33 of a load controlling circuit 30 is turned ON/OFF, and feed to a solenoid 50 is turned ON/OFF. The power source is set to be always ON and could be controlled by the ON/OFF of the control signal, and the control signal is set to be always ON and could be controlled by the ON/OFF of the power source. |
