To not overload the subject we decide to leave out the description of the standard functions Siemens, which you can find on the relevant use and m aintenance m anuals. In particular we do not treat the unit MMC that is entirely m anaged by Siemens. The only intervention m ade by the m 

anufacturer is that of inhibit some functions or configure some pages in order to better adapt it to the specific functions of the m achine. 

为了避免项目繁重，我方省略了西门子功能性标准的描述，您可参阅西门子提供的专用手册。特别是，MMC单元我方也不做涉及了，因为此单元全由

西门子管理而机床制造上唯 一干涉的地方就是限 制了一些功能或配置使它更适合机床。

So we start with the keys placed under the user inter f a ce MMC. 

所以我们从MMC用户接口下的按钮开始介绍。

“Machine ON” Push Button: “机床启动”按钮

The key “m achine ON” serves to reset the safety submodule (emergency, overtravel, spindle) in order to operate the auxiliaries and the m achine 

axes. At the first switching on the relevant la mp is OFF. This condition means that all the functions of the m achine are inhibit and at least one 

safety submodule has not been reset.

“机床启动”按钮用来恢复安全模式（紧急情况，超行程，主轴），打开辅助开关和各轴。第一次启动的时候，按钮相关的信号灯是暗的。此情况表明