| 摘要 |
PROBLEM TO BE SOLVED: To provide a diagnostic device of an elevator for achieving quick and reliable detection about failure related to a data signal terminal of a CPU of a computer used for control of an elevator.SOLUTION: A diagnostic device for an elevator includes: a CPU 10 for outputting n-types of exclusive data from first data to n-th data which are distinguishable with each other from a CPU data signal terminal 11 sequentially and circularly type by type at each prescribed time; and a CPLD 70 in which the data outputted from the CPU data signal terminal 11 can be inputted and which can output a signal for diagnosis of high and low two levels. The CPLD 70 reverses the level of the signal for diagnosis in the case where the exclusive data is inputted sequentially from the first data to the n-th data, and the CPU 10 counts the number of times for the level of the signal for diagnosis outputted from the CPLD 70 to be reversed, and diagnoses abnormality of the CPU data signal terminal 11 based on the counted value. |
