70EA05a-E HESG447419R1 ABB

Common human-machine interface failures include mouse operation failure,control operation failure,operator station crash,abnormal membrane keyboard function,and printer not working.The abnormal operation of the mouse is generally due to the aging or pollution of the internal mechanical device for a long time,so that the contacts cannot be reliably connected and disconnected,or the cable does not communicate with the host because the cable is not firmly connected.

人机接口故障常见的有鼠标操作失效、控制操作失效、操作员站死机、薄膜键盘功能不正常、打印机不工作等。鼠标操作不正常一般是由于内部机械装置长期工作老化或污染，使触点不能可靠通断，或因电缆插接不牢固造成与主机不通信，这时只需将其更换检查即可。