| 摘要 |
PURPOSE:To provide an elevator group control system that efficiently performs wastewater treatments, minimizes the performance deterioration of group control due to the wastewater treatments, and prevents transporting ability from being deteriorated by the wastewater treatments. CONSTITUTION:If a plurality of drain requests 9 from air-conditioned elevators 15 are transmitted to a group control system 8 via elevator controllers 7, a drain command 10 is transmitted to only one of the elevators, and after the elevator receiving the drain command has completed draining, a drain command is issued to the next elevator, so that the plurality of elevators do not drain simultaneously. |
