The invention discloses an elevator door lock grounding fault detecting and positioning method. The method comprises the following steps that initial measurement is carried out, specifically, a current value IA flowing through an elevator landing door lock relay coil and a current value IA1 flowing through a landing door lock of a lowest floor are separately measured under the operation of an overhaul state; difference value calculation is carried out, specifically, a current difference value delta I = IA-IA1 is calculated according to the current value IA and the current value IA1; and faultjudgment is carried out, specifically, when delta I is larger than or equal to IKmin, a dichotomy is adopted for positioning the grounding fault of the elevator door lock, when delta I is smaller thanIKmin, the elevator door lock has no grounding fault, detection is finished, and IKmin is the minimum driving current for attraction of an elevator landing door lock relay. According to the method, the elevator door lock grounding fault can be conveniently and rapidly detected, the floor where the fault is located can be accurately positioned, the discovery rate of potential safety hazards can beincreased, maintenance can be guided conveniently, serious influences on on-site operation can be avoided, and the actual application value can be improved.
本发明公开了一种电梯门锁接地故障检测定位方法,包括以下步骤:初始测量,在检修状态运行下并分别测量流经电梯层门门锁继电器线圈的电流值I以及测量流经最低楼层的层门门锁电流值I;差值计算,根据电流值I和电流值I,计算电流差值ΔI=I‑I;故障判断,当ΔI≥I时,采用二分法进行电梯门锁接地故障定位,当ΔI
Elevator door lock grounding fault detecting and positioning method
电梯门锁接地故障检测定位方法
2020-07-28
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |
European Patent Office | 2018
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