| 摘要 |
<P>PROBLEM TO BE SOLVED: To first diagnose whether a failure occurs in a human body detecting sensor or not, when diagnosing the failure. <P>SOLUTION: An automatic water supply device includes: a solenoid valve 1 to be disposed in a water flow path 9; a human body detecting sensor 2 for detecting a human body; a control circuit 5 for driving the solenoid valve 1, based on a detection signal from the human body detecting sensor 2, to control water to flow in the water flow path 9; and a power supply circuit 6 for supplying power to the solenoid valve 1, the human body detecting sensor 2 and the control circuit 5. Signal lines b, d of the control circuit 5 and power supply lines a, c of the power supply circuit 6 are connected to the human detecting sensor 2 via a relay terminal 4 and a connection connector 3 with a lead wire connected to the relay terminal 4. To the relay terminal 4 from which the connection connector 3 with the lead wire is removed, an inspection connector 7 with a jumper line is connected to electrically connect the power supply line c connected to the human body detecting sensor 2 to the input signal line d. <P>COPYRIGHT: (C)2012,JPO&INPIT |
