| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a two-channel load control device including a latch type relay as a switch element, in which the state of a switching contact of the latch relay is detected and compared with the operation information input by a user, thereby detecting the state of the switch element. <P>SOLUTION: A two-channel load control device comprises: an off power supply unit 14 for outputting DC power when a switch element 12 is in a non-conductive state; an on power supply unit 17 for outputting DC power when the switch element 12 is in a conductive state; an off power supply operation detection unit 30 for detecting whether DC power is output from the off power supply unit 14; an on power supply operation detection unit 31 for detecting whether DC power is output from the on power supply unit 17; and a control unit 20 for controlling conduction and non-conduction of the switch element 12 on the basis of externally input operation information and for detecting abnormality of the switch element 12 and outputting the abnormality detection information on the basis of the operation information and detection information from the off power supply operation detection unit 30 and detection information from the on power supply operation detection unit 31. <P>COPYRIGHT: (C)2013,JPO&INPIT |
