MVME162-212系统备件
在这些应用中，垫子系统检测操作员的存在，以防止操作员在外壳内时重置周界防护系统并重新启动机器。图注固定防护装置应符合和的要求。合适的周界防护系统应为固定防护装置，该防护装置配有检修门，并配有带条件防护装置解锁的联锁开关见。诸如安全光幕的跳闸装置也可适用于某些应用。需要注意的是，光幕的位置必须根据进行计算。在这些应用中使用垫子系统时，操作员可接近的整个封闭地板区域应覆盖传感器垫子。危险压力敏感垫固定防护联锁门带锁固定防护装置固定防护装置的设计应确保除通过垫系统外，无法进入危险区域。防护装置的构造和定位应符合和的要求。良好的安装设计和防止旁路的措施如果不站在垫子上，就不可能到达危险区域。必须防止从不涉及站在垫子上的位置进入危险区域。这通常需要额外的角板以及管道和线槽的小心定位。这方面的良好实践如图所示。图。固定防护装置防止进入危险区域，从而使防护装置和传感器之间无法进入。倾斜盖板防止操作员站在机器底板上避开感应区域。传感器边缘的跳闸危险通过入口处的斜坡减少。斜坡还可以保护连接电缆。可选的周界修剪是渐变截面。电缆槽安装在固定防护装置的外部。这可防止其被误用为进入危险区域。复位按钮位于保护良好的位置，可完全看到机器。垫安装正确。电气接口系统提供的保护取决于系统和机器之间的正确接口。安全输出触点来自系统的两个独立的无电压触点对。端子位置在第节中给出，额定值在第节中给出。控制单元符合中的类要求。与其他安全垫和地板一样，传感器垫的类性能无法在严重机械损坏或长期退化导致的故障中实现。根据，传感器垫符合第类。由互连传感器垫和控制单元组成的系统符合第类的要求。垫系统可用作唯一的保护措施，或与其他措施或装置如工作安全灯帘系统结合使用。如果协调的欧洲标准适用于机器类型，它将包含机器安全相关控制系统的要求和指南。也提供了指导。重要的是，应根据的适当类别提供针对可预见故障的充分保护，因此，建议在所有高风险应用中使用具有复制和监控最终开关元件接触器的双通道配置。图和给出了垫系统的互连示例。图显示了单接触器单通道和应用的示例连接图。电路状态电源打开传感器垫上不存在复位按钮已操作如果处于手动复位模式机器启动电路已启用。
In these applications, the mat subsystem detects the presence of the operator to prevent the operator from resetting the perimeter protection system and restarting the machine while inside the enclosure. The fixed protective device in the drawing shall meet the requirements of and. The appropriate perimeter protection system shall be a fixed guard equipped with an access door and an interlock switch that unlocks the conditional guard, see. Tripping devices such as safety light curtains may also be suitable for certain applications. It should be noted that the position of the light curtain must be calculated according to. When using the mat subsystem in these applications, the entire enclosed floor area accessible to the operator shall be covered with the sensor mat. Fixed protection of dangerous pressure sensitive pad Interlocked door with lock Fixed protection Fixed protection shall be designed to ensure that the dangerous area cannot be accessed except through the pad system. The structure and positioning of protective devices shall meet the requirements of and. If good installation design and bypass prevention measures are not standing on the mat, it is impossible to reach the hazardous area. It must be prevented from entering the hazardous area from a position that does not involve standing on the mat. This usually requires additional gussets and careful positioning of pipes and trunking. Good practices in this area are shown in the figure. Figure. Secure the guards to prevent entry into the hazardous area so that there is no access between the guards and the sensors. The tilt cover prevents the operator from standing on the machine floor to avoid the sensing area. Trip hazards at the edge of the sensor are reduced by a ramp at the entrance. The slope also protects the connecting cable. The optional perimeter trim is a gradient section. The cable tray is installed outside the fixed guard. This prevents it from being misused to enter hazardous areas. The reset button is located in a well protected position and the machine can be fully seen. The gasket is installed correctly. The protection provided by the electrical interface system depends on the correct interface between the system and the machine. The safety output contact comes from two independent voltage free contact pairs of the system. Terminal locations and ratings are given in Section. The control unit meets the class requirements in. As with other safety pads and floors, the sensor pad's class performance cannot be achieved in the case of failures caused by severe mechanical damage or long-term degradation. Sensor pads according to category. The system consisting of interconnected sensor pads and control units meets the requirements of category. The pad system can be used as the only protective measure or in combination with other measures or devices such as the work safety curtain system. If the harmonized European Standard applies to machine types, it will contain requirements and guidelines for machine safety related control systems. Guidance is also provided. It is important that adequate protection against foreseeable faults should be provided according to the appropriate category of, therefore, it is recommended that a dual channel configuration with duplicated and monitored final switching element contactors be used in all high-risk applications. Figures and show an example of the interconnection of the mat system. Illustration shows an example connection diagram for a single contactor, single channel, and application. Circuit status Power on Sensor pad does not have reset button operated If in manual reset mode machine start circuit is enabled.
