| 摘要 |
PROBLEM TO BE SOLVED: To provide a restoration defect diagnostic device for elevator operation button which accurately grasps a restoration defect of an operation button without using a high precision sensor, and which can perform restoration defect diagnosis of the elevator operation button with good accuracy.SOLUTION: A restoration defect diagnostic device for elevator operation button includes: an ON time measurement unit for measuring time from the pressing to the separation of an operation button; a number count unit by the time for totalling the number of ON time measured in the ON time measurement unit by the time; a totalling unit by the period for totalling the count of the number by the time for a certain period. By comparing the count of the number by the time of the totalling unit by the period for this time and the previous time, change in restoration delay after the pressing of the elevator operation button is detected in the restoration defect diagnosis for an elevator operation button.SELECTED DRAWING: Figure 1 |
