这是一个在电动机运行状态的逻辑运算中常用的状态检测原理的例程。它根据电动机负载的大小和外部开关状态共同判断当前电动机的状态。-This is a motor running in the logical operations commonly used in the principle of state detection routines. It according to the size of the motor load and external switches to determine