基于ASOM的综合告警平台的设计及应用

文章以探测设备数据到报情况为研究对象,结合江西省设备故障报警规则,设计并搭建了基于ASOM平台的气象探测设备综合告警平台。平台利用ASP编程语言实现了不同设备故障数量的实时显示,完成了以两个不同色块自动区分正常与故障情况,以及文字报警信息的滚动发布,同时与MAS平台对接,实现了报警短信的自动发送。平台的建立提高了气象探测设备故障处理的响应时效,为监控业务提供更为便捷的应用服务。     

西门子810数控系统维修实例

本文简单介绍了西门子810系统的基本构成，详细介绍了一些影响数控系统正常工作的原因，并且介绍了诊断这些故障的一些方法和实际经验。其中第一部分介绍了两例由于机床为数控系统供电的电源出现问题而影响系统的正常工作的故障处理过程，第二部分介绍了7例引起系统死机故障的处理过程，第三部分介绍了系统出现的11号报警和22号报警的处理过程。     

数控机床典型故障维修

1.NC系统随机故障及其排除 Rapid (?)160mm数控镗铣床是WOTAN公司生产的,于1986年底引进安装。该机床自安装使用以来,运行一直比较正常,偶尔出现故障,在维修上也有章可循。但在一段时期内机床正常使用时,却常出现设备突然停机故障。观察故障现象:操作面板上没有NC报警和PC报警的故障号,而且NC系统插板和PC系统插板上的指示灯均显示正常,只有操作面板上的ALARM红灯     

CERES 330数控内圆磨床控制系统故障维修

CERES 330数控内圆磨床由德国SCHAUDT MIKROSA BWF公司生产,该设备采用SIEMENS 840D数控系统,在设备使用过程中出现了开机后不能正常启动并报警的现象。根据故障现象进行故障原因分析,排查数控系统软件和硬件,在更换MMC103后又出现新的报警,再次排查后发现是由于地址冲突造成MMC103与NCK通信连接不上使设备不能正常工作,最终将故障全面修复。     

壳牌煤气化S1501反吹系统仪表维护经验谈

在某煤制油厂煤气化中心S1501反吹系统仪表维护过程中,为了减少高温高压反吹过滤系统装置正常运行的过程中出现的故障报警,影响装置生产波动,仪表维护人员通过长时间的生产维护经验的积累,针对阀门容易出现的故障问题进行认真分析,通过技术改造,直接减少了反吹系统的阀门故障误报警的次数,为日后的仪表技术人员处理故障提供借鉴。     

VOLVOL220E装载机水温报警故障分析

发动机在正常工作状态下,发动机的冷却液温度一般维持在90℃左右,若发动机冷却液温度高于正常值,那么水温传感器就会提示报警,应立即停机查找原因,避免发动机过热损坏。本文结合VOLVOL220E型装载机水温高报警故障,分析常见水温报警故障原因,即机械故障、电气故障、风扇液压系统故障,着重阐述风扇液压系统工作原理,以及比例电磁阀MA202控制液压泵输出流量的工作机制,通过分析故障现象确定MA202损坏是导致风扇转速偏低,水温升高的主因,更换电磁阀,故障得到解决。     

PC300-6挖掘机故障排除两例

故障Ｉ左行走无力 故障现象 新机工作至 １７０ ｈ时,挖掘机突然出现左行走无力现象,机上仪表盘显示故障代码为Ｅ０２并报警。 故障检查 （１）在现场发现,用户自行加装了液压破碎锤的管路系统（见图１）,该管路系统加装在液压双联泵的后泵出口管路中。用户解释说,该液压锤改装（试机正常后拆除锤头,换回挖斗）后已正常工作了近 ５０ ｈ,且另一台ＰＣ３００－６挖掘机也进行了同样的改装,现一直工作正常,故认为液压锤管路问题不大。 （２）经分析后,首先将仪表盘设置至故障自诊断显示位置,结果显示故障代码为Ｅ０２并报警,后来…     

高炉故障报警系统的规范化与应用

通过介绍故障报警系统在高炉的应用经验,对自动化控制系统中的故障报警技术进行了深入研究,并对自动化控制系统中故障报警的重要意义以及如何有效地获得故障报警信息作了一些探讨。     

VP2012加工中心维修案例

我们在实际维修中,遇到这样一个故障,一台VP2012加工中心正在正常加工模具时,突然故障停机,CRT显示如下报警：     

某船发电柴油机排气阀故障实例分析

船舶发电机是船舶电力系统最重要的组成部分,也是使用频率最高的设备之一。快速准确排除船舶发电机故障,对保障各种设备的正常运行以及船舶安全航行具有重要意义。现介绍某船发电柴油机突发增压器啸叫、喘振、补气电磁阀报警、功率报警、气缸排温异常低的故障实例,并结合故障现象进行分析定位,总结了导致排气阀阀杆断裂的原因和设备维护的经验方法,对类似故障的分析研判和后续处置具有一定的借鉴意义。     

西班牙FAGOR8025数控系统维护

数控系统在现代制造业中所占地位越来越重要,简要介绍了FAGOR8025的结构及其故障分析。可根据跟随误差的报警,检查出问题,排除故障,保证系统的正常运行。     

一种非走心式单轴车床数控自动送料机的结构设计

所设计的数控自动送料机专用于非走心式单轴车床,实现自动送料加工,适用棒料规格在5~40 mm.整机采用CNC控制,输送系统为伺服电机控制,无级调速,具有精度高,速度快的优点.同时具有自动检测料长1.3~1.5 mm棒料,可混合放置加工、无料报警及无料20 s内停机工作等功能.     

FANUC 0i系统外围故障报警的诊断

研究了数控机床报警的分类,给出了报警信息的查看方法.由PMC引起的外围故障是数控机床运行过程中最常见的故障.通过一个实例介绍了外围故障诊断和排除的基本思路.     

Mobile and remote operation for M2M application in upcoming u-manufacturing

This study tried to control and monitor computerized numerical controller (CNC) machines anywhere and anytime for machine (mobile) to machine (M2M) application in wired and wireless environment of upcoming ubiquitous manufacturing systems (u-Manufacturing). With a personal digital assistant (PDA) phone, the machine status and machining data of CNC machines can be monitored in wired and wireless environments, including the environments of IMT2000 and Wireless LAN. Moreover, CNC machines can be controlled anywhere and anytime. The concept of the anywhere-anytime controlling and monitoring of a manufacturing system was implemented for u-Manufacturing in this study. In this concept, the communication between the CNC controller and the PDA phone was successfully performed anywhere and anytime for the real-time monitoring and control of CNC machines. In addition, the interface between the CNC controller and the developed application module was implemented by object linking and embedding for process control (OPC) and shared CNC memory. For communication, the design of a server content module within the target CNC was based on a TCP/IP. Furthermore, the client content module within the PDA phone was designed with the aid of embedded c++ programming for mobile communication. For the interface, the monitoring data, such as the machine status, the machine running state, the name of the numerical control (NC) program, the alarm and the position of the stage axes, were acquired in real time from real machines with the aid of the OPC method and by sharing the CNC memory. The control data, such as the start, hold, emergency stop, reserved start and reserved stop, were also applied to the CNC domain of the real machine. CNC machines can therefore be controlled and monitored in real time, anywhere and anytime. Moreover, prompt notification from CNC machines to mobile phones, including cellular phones and PDA phones, can be automatically realized in emergencies.     

Ubiquitous-based mobile control and monitoring of CNC machines for development of u-machine

This study was an attempt to control and monitor Computerized Numerical Controller (CNC) machines anywhere and anytime for the development of a ubiquitous machine (u-machine). With a Personal Digital Assistant (PDA) phone, the machine status and machining data of CNC machines can be monitored in wired and wireless environments, including the environments of IMT2000 and Wireless LAN. Moreover, CNC machines can be controlled anywhere and anytime. The concept of the anywhere-anytime controlling and monitoring of a manufacturing system was implemented in this study for the purpose of u-manufacturing and u-machines. In this concept, the communication between the CNC controller and the PDA phone was successfully performed anywhere and anytime for the real-time monitoring and control of CNC machines. In addition, the interface between the CNC controller and the developed application module was implemented by Object linking and embedding for Process Control (OPC) and shared CNC memory. For communication, the design of a server contents module within the target CNC was based on a TCP/IP. Furthermore, the client contents module within the PDA phone was designed with the aid of embedded c++ programming for mobile communication. For the interface, the monitoring data, such as the machine status, the machine running state, the name of the Numerical Control (NC) program, the alarm and the position of the stage axes, were acquired in real time from real machines with the aid of the OPC method and by sharing the CNC memory. The control data, such as the start, hold, emergency stop, reserved start and reserved stop, were also applied to the CNC domain of the real machine. CNC machines can therefore be controlled and monitored in real time, anywhere and anytime. Moreover, prompt notification from CNC machines to mobile phones, including cellular phones and PDA phones, can be automatically realized in emergencies.     

数控机床超程故障维修

介绍了数控机床两种超行程保护的工作机理。当机床的某一轴同时触发两个方向的超程警报时,可借助系统诊断功能查询机床PLC的当前状态,结合对机床电气回路的测量,查找并分析故障原因;通过调整行程开关位置并修改相关系统参数,最终排除数控机床的超程故障。     

浅析数控机床的故障分类及诊断方法

本文按照数控机床的故障性质、故障的部位、故障发生后有无报警显示和故障发生的频率进行的分类，列出了九种诊断方法，希望能给数控机床的同仁有所借鉴。     

基于Windows CE的数控系统中断控制

比较了几种数控系统的开发平台，指出Windows CE是开发开放式数控系统的一个较理想的选择；讨论了怎样设计驱动程序去完成基于Windows CE的数控系统的中断控制；以数控系统实时插补为例，介绍了IPC5387定时器卡中断驱动程序的开发技术。     

FANUC 0i C系列CNC数控系统的数据备份

介绍FANUC0iC系列CNC数控系统的基本结构,结合系统F-ROM和S-RAM中参数备份理论与实践,阐述了数控设备电气维修工程师的必备技能与知识,目的在于使工业企业更好地利用FANUC0iC系列CNC数控系统,及时排除故障,合理利用CNC数控设备,获得最高的经济效益。     

加工中心防碰撞措施探讨

从加工中心的PLC程序、报警文本编制两方面阐述防碰撞、保安全的措施。