What are the reasons for the elevator downtime?
Holding the door lock safety circuit are likely to cause the inverter encoder
Personally feel that, in addition to holding the hold is not tight, the other will not cause a decline. Door locks and security circuit if the problem, and finally also hold the hold and have to light hair scallion Gui Gui Phthalate Pharaoh, if the brakes no problem, no matter what the problem, will be locked. Under normal circumstances, the host any abnormal operation, the encoder can be detected, the inverter will be protected. Do not know what the concept of your decline is Is the loss of control, or the normal range of decline?
(1) elevator control program disorder, out of control; (2) elevator shaft leveling sensor failure, elevator lost floor data; (3) elevator running in the process of mechanical scratches, such as car door knife and hall door Ball or hall door to ground distance is too small, compensation chain hoist parts and so on. (4) elevator safety gears, grips, brakes and other safety components accidental action; (5) elevator overload squatting; (6) elevator running process safety circuit failure, hall doors or car doors and other failures, Belonging to a protection function of the elevator. (7) In addition, there are other reasons, such as maintenance and maintenance of the elevator is not in place, not according to the national statutory cycle of regular maintenance and regular inspection, so that the elevator with a fault operation; or elevator number, location and other arrangements unreasonable lead Elevator use frequency is too high, the elevator motor, control cabinet heat generated by a variety of sudden failures. Elevator suddenly stopped, no less than two reasons: First, a sudden power failure; Second, the sudden failure of the elevator.
