电梯电气控制线路中,轿、厅门锁开关的联锁电路是电梯安全运行的重要保证。其原理见图1。 由于这些门锁开关多采用微动开关或小型行程开关如:GSO5、JW-11、LX28等,材料脆弱,容易损坏。在楼层较多的情况下,要查出故障所在的开关,必须逐层逐门检查,严重影响故障的检出速度。所以该联锁电路也是电梯运行率低的重要因素。 In the elevator electric control circuit, the interlock circuit of the car and hall lock switch is an important guarantee for the safe operation of the elevator. The principle is shown in Figure 1. Since these door lock switches use micro-switches or small-sized travel switches such as GSO5, JW-11, LX28, etc., they are fragile and easily damaged. In the case of a large number of floors, the switch where the fault is located must be checked layer by door and seriously affect the speed of detection of the fault. Therefore, the interlock circuit is also an important factor in the low elevator operation rate.