《天车可控硅限位器》设计的基本思路,是借助可控硅和小型继电器去推动设备上原有的限位电路。其特点有二:一、用绝缘触线代替限位撞铁,限位动作不会出现跑偏问题;二、触线上通的是很弱的安全电压,同时利用了可控硅的电流放大控制能力,既能避免工人的触电危险,又能保证限位动作 “Crane silicon limiter” design of the basic idea is to use SCR and small relays to promote the device’s original limit circuit. Its characteristics are twofold: First, with the insulated wire instead of limit hit the iron, the limit action will not appear deviation problems; Second, the touch on the pass is a very weak safety voltage, while using the SCR current amplification Control capabilities, both to avoid the risk of electric shock workers, but also to ensure limit action