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基于PMAC的開放式數(shù)控教學(xué)平臺(tái)的硬件設(shè)計(jì)
（作者未知） 2009/11/17
（接上頁）提高到15V。信號(hào)的極性由跳線E17控制。缺省值為低電平（導(dǎo)通）時(shí)有效。
(3)回零信號(hào)（HMFLn）
一個(gè)回零開關(guān)和接在該針上（HMFL1為針55）與模擬地之間（AGND），由總線供電，接在數(shù)字地上（GND）上。開關(guān)可以是常開或常閉的；打開時(shí)為高（1）�；亓阈盘�(hào)的極性可由編碼器I變量2和3控制。
參考文獻(xiàn)：
[1] 蘇偉.基于PMAC的開放式數(shù)控教學(xué)平臺(tái)的研究.天津大學(xué),2005
[2] 趙保亞.基于PMAC開放式數(shù)控系統(tǒng)及其應(yīng)用.煤礦機(jī)械.2007年 5月 第28卷第5期
[3] PMAC 用戶手冊(cè).北京鈞義志成技術(shù)有限責(zé)任公司,2003
[4] 多軸運(yùn)動(dòng)控制器及配套產(chǎn)品介紹.北京艾瑪特科技有限公司.2006
[5] PMAC培訓(xùn)講義.蘇州鈞信科技有限責(zé)任公司,2003
[6] 上海松可機(jī)電有限公司.松下Minas A4 系列AC 伺服驅(qū)動(dòng)器.操作手冊(cè)
The Design on the Open PMAC-basedNumerical Control Teaching Platform Hardware
Pan Ming
Jiangsu Maritime Institute Jiangsu Nanjing, China 211170
Abstract: Currently，practical training of the CNC technology in some vocational training institutions focuses on cultivating students’ skills in CNC programming and CNC machine operation, while, less attention are paid to implementing objectives in CNC technology students’ ability and quality from the perspective of systematical planning, application and development. Therefore, an integrated CNC experimental platform in the field of numerical integration has been designed, that is, IPC (industrially controlled computer) machine + motion controller, the system of open CNC system, using the characteristics of the system---open, to achieve a new teaching mode in numerically controlled technology. The paper emphasizes hardware structure in the numerical control system, the various hardware components and hardware connections.
Key words: PMAC, open style, the numerical control system hardware
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