故障现象:开始时,正常工作。当小车左移到临近原始位置时(距离原始位置约3～4cm),Error灯闪烁,Online灯熄灭,蜂鸣器长响。 故障分析:根据提示信息,初步判断为原始位置出错。与原始位置有关部分如下: 1)观察小车轨道上是否有杂物等,如果有,应清除。 2)检查原始位置传感器安装是否正确。 3)检查小车带状电缆的连接。 4)检查原始位置传感器是否完好。 5)检查小车马达,每相约45Ω。 Symptoms: The beginning, the normal work. When the car left to the original position (about 3 ~ 4cm from the original position), Error light flashes, the Online light goes out, the buzzer sounds. Failure Analysis: According to the prompt information, initially determine the original location of an error. And the original location of the relevant parts are as follows: 1) observe the trolley track whether there are debris, etc., if any, should be cleared. 2) Check the original position sensor is installed correctly. 3) Check the car ribbon cable connection. 4) Check the original position sensor is intact. 5) Check the car motor, each phase is about 45Ω.