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某公司1台,采用FC3000微机控制的调压调频电梯,在一次检修慢车运行时,发生溜车现象。“溜车”是指电梯在失去电力驱动和控制的情况下,由于轿厢和对重之间的质量差产生的位势能而引起的电梯轿厢上升或下降的现象。1原因分析1)检查制动器正常,闸片几无磨损,曳引绳与曳引轮正常,机械部分正常。2)检查电梯各回路电压、绝缘正常。3)检查各端子板及各电压值确认正常。4)检查控制屏MB-VE1、CB-VE1、HC-VE1板未见异常。5)重新慢车运行,发现停车后电梯厅门稍微打
A company, Taiwan, the use of FC3000 computer-controlled frequency modulation FM elevator, in a maintenance of local operation, the phenomenon of rolling car. “Rollover” refers to the phenomenon that an elevator car rises or falls due to the potential energy generated by the poor quality between the car and the counterweight without the electric drive and control. 1 Reason Analysis 1) Check the brake is normal, the brake is almost no wear, hoisting rope and traction sheave normal, mechanical part of the normal. 2) Check the elevator circuit voltage, insulation is normal. 3) Check the terminal board and the voltage value is normal. 4) Check the control panel MB-VE1, CB-VE1, HC-VE1 board no exception. 5) re-run the car and found that the elevator hall door after a little fight