| 摘要 |
PROBLEM TO BE SOLVED: To diagnose and adjust exact time even in recovery from blackout by correcting time of clock used in each elevator device at a suppressed cost of line. SOLUTION: A time correction means 3 corrects the time of clock CK2 using time information sent by an administration center at a specific period. A time counting means 4 counts a shorter period than the specified period. A time transmission means 5 transmits the corrected time to a group administration controller 9, elevator controllers 10A and 10B and controllers for indication, 11A and 11B with the counted shorter period to correct the time of each clocks. At power input time, a time correction request means 7 requests the administration center 1 to correct time and an operation control disturbing means 8 disturbs the operation control using all clocks. |
