功能：
Function:
时间继电器的主要功能是作为简单程序控制中的一种执行器件，当它接受了启动信号后开始计时，计时结束后它的工作触头进行开或合的动作，从而推动后续的电路工作。一般来说，时间继电器的延时性能在设计的范围内是可以调节的，从而方便调整它的延时时间长短。单凭一只时间继电器恐怕不能做到开始延时闭合，闭合一段时间后，再断开，先实现延时闭合后延时断开，但总体上说，通过配置一定数量的时间继电器和中间继电器都是可以做到的。
The main function of time relay as anutive device simple program control, when it receives the start signal after the beginning of time, time after the end of work contact it for opening or closing action, so as to promote the follow-up circuit. Generally speaking, the time delay performance of the time relay can be adjusted in the design range, so that the delay time of the relay can be adjusted conveniently. With a time relay, I'm afraid I can't do start delay closed, closed after a period of time, and then disconnect, first delay closed off delay, but on the whole, through the allocation of a certain number of time relay and an intermediate relay can be done.
