机电技术专业英语 教学课件 作者 徐起贺 张庆良pata a lesson Nineteen.pptVIP

* 机电技术专业英语 Lesson Nineteen Text Following Figure A.14 is a control panel. EMERGENCY STOP The EMERGENCY STOP button is red and is located in the lower left corner of the control panel. If this button is pressed, the feed and rotation of the tool is stopped and the control system of the computer is turned off. The EMERGENCY STOP button is only used in special situations. Some of these are the overloading of the machine, a machined part is loose, or incorrect data in the program are causing a collision between the tool and the workpiece. To reset the EMERGENCY STOP button, push it in and turn it clockwise. Then you can turn the machine on, zero it, and eliminate the cause that forced the use of the EMERGENCY STOP button. Additionally, check whether any alarm signs appeared on the screen or whether the machine stopped during the execution of the cycle corresponding to a tool change or a table change1. If such is the case, then repeat the same command (the cycle command) with the switch positioned on the MDI (manual data input) to make sure that the cycle has been completed2. Describing the Operation Panel Lesson Nineteen Figure A.14?Control panel Figure A.15 Model select Lesson Nineteen MODE SELECT Use this switch (Figure A.15) to specify the operational mode. The position of this switch determines whether the machine utilizes the computer or the manual control. EDIT Positioning the switch in the EDIT mode enables you to: · Enter the program to machine memory. · Enter any changes to the program. · Transfer data from the program to a tape. · Check the memory storage capacity. MEMORY Positioning the switch in the MEMORY mode enables the NC commands stored in the memory to be executed. Lesson Nineteen MDI Positioning the switch in the MDI mode enables the automatic control of the machine to use information entered in the form of blocks without interfering with the basic program. This is often used during t