| 摘要 |
PROBLEM TO BE SOLVED: To enhance a function and ensure the safety equal to or more than that of the conventional device by control using a microcomputer. SOLUTION: An opening and closing command for a side sliding door of a rolling stock is doubled in an input circuit 12 and input to a first control part 111 and a second control part 112, respectively. A motor driving circuit 15 for supplying power to an electric motor M for driving the side sliding door is formed as a serial circuit comprising a first output part 151 and a second output part 152. Accordingly, only when both output parts 151, 152 are driven, the motor M is energized. The first and second output parts 151, 152 are respectively drive-controlled by the first and second control parts 111, 112. The first and second control parts 111, 112 respectively monitor the processing result in the other control part, and when the processing results of both control parts for an input signal agree with each other, the output parts 151, 152 are respectively driven. |
