Crab travel limit switch : stops trolley before it approaches the buffer . in other direction , the crane can be moved 小车十字限位装置可以使小车在行驶到缓冲器末端停止运行,反方向可以运行。
Crane travel limit switch : switches crane to stop travelas it approaches end oftrack . in the other direction , the crane can be moved 大车十字限位装置可以使大车在行驶到轨道末端停止运行,反方向可以运行。