E0903: Reedy to start warming up REMOVE: II Any board on the conveyor II Any PUSH-UP pins II Other obstructing items Push the [ESC] key to abort warning up and to return to the command menu.

• 准备启动“暖机”，移开在运输轨上的任何板。按[ESC]键取消[暖机，并转回指令菜单。意义：提醒用户正要开始暖机操作。