| 摘要 |
PURPOSE: To accurately stop an elevator at a target stop floor even in the case of having malfunction in a limit switch, etc., by feeding discrimination signals from floor landing of normal distance, or from floor landing of more than, or within the normal distance due to malfunction of the limit switch, etc., to a floor landing pattern calculation means. CONSTITUTION: A floor landing zone calculation part outputs discrimination signals 32b, 32c, 32d indicating a floor landing point by a stop position level and a switching signal 32a by contact inferiority or deposition (on-mode failure) of a floor landing switch. A motor shaft position calculation part 33 inputs a signal 5a of a brushless resolver or a pulse generator as a point detector 5 and outputs data 33a of a motor shaft rotational angle. A floor landing pattern calculation part 34 receives the motor shaft rotational angle data 33a, floor landing switching signal 32a, and floor landing zone discrimination signals 32b, 32c, 32d so as to calculate floor landing patterns in a floor landing zone. The riding cage of the elevator can be thus controlled and accurately stopped at a target stop position. |
