PMA324BE HIEE400923R0001工控模块系统备件
考虑所有日常访问需求，如产品检查、机器检查和调整、刀具更换和清除堵塞。还应考虑过程的视觉观察。在干预过程中，考虑机器附近人员和辅助设备的空间要求。安全距离计算对于使用垫子系统作为组合跳闸和存在感测系统的应用，应根据EN999进行计算。图12的流程图显示了基本步骤。注：如果机器的设计符合该机器的现有协调欧洲“C”型标准，该标准给出了具体公式或最小距离，则应优先使用EN 999中给出的公式。传感器垫危险危险传感器垫传感器垫固定防护延伸固定防护箭头显示通道17图12流程图显示方法计算的最小距离是传感器垫检测区外缘到危险最近部分的最小水平距离。地面安装式安全垫的EN 999公式为S=（1600 x T）+1200mm S是最小安全距离，单位为毫米。系数1600是基于进场速度1600mm/S的标准假设。T是以秒为单位的总停止时间。增加的1200mm是EN 999中给出的参数C，并考虑了步幅长度和手臂伸展。否是否是否否否是C类标准中是否给出了具体公式或最小距离？根据C类标准确定最小距离使用该最小距离根据prEN 999中的公式计算最小距离是否可以达到该最小距离？最小距离是否允许人员在危险区域内而不被发现？使用此最小距离以及根据风险采取的补充措施使用该最小距离是否可以缩短总体响应时间，或者是否可以缩短参数C？减少总响应时间和/或减少参数C使用附加或替代保护设备18总停止时间T由两部分组成：T=t1+t2 t1是启动传感功能和输出信号开关设备处于关闭状态之间的最长时间。对于垫子系统，t1=35mS。t2是机器的响应时间，即。
ake into account all the routine needs for access, such as product inspection, machine inspection and adjustment, tool changes & clearing blockages. Consider also visual observation of the process. Take into account the space requirements of persons and ancillary equipment close to the machine during interventions. SAFETY DISTANCE CALCULATIONS For applications using the mat system as a combined trip and presence sensing system these should be done in accordance with EN999. The flow chart at fig. 12 shows the essential steps. NOTE: If the machine is designed in conformity with an existing harmonised European “C”: type standard for that machine which gives specific formulae or minimum distances, then these should be used in preference to those given in EN 999. SENSOR MATS HAZARD HAZARD HAZARD SENSOR MATS SENSOR MATS FIXED GUARD EXTENDED FIXED GUARD ARROWS SHOW ACCESS 17 Fig. 12 FLOW CHART SHOWING METHODOLOGY The minimum distance calculated is the minimum horizontal distance from the outer edge of the sensor mat detection zone to the nearest part of the hazard. The EN 999 formula for floor mounted safety mats is S = (1600 x T) + 1200mm S is the minimum safety distance in millimetres The factor of 1600 is based on the standard assumption of 1600mm/s as the approach speed. T is the overall stopping time in seconds The added 1200mm is parameter C given in EN 999 and takes into account stride length and arm reach. NO YES NO YES YES NO NO YES Are specific formulae or minimum distances given in Type-C standards ? Determine the minimum distance according to the Type-C standard Use this minimum distance Calculate minimum distance by the formulae in prEN 999 Can this minimum distance be achieved ? Does the minimum distance allow persons to be within the danger zone without being detected ? Use this minimum distance together with supplementary measures depending on the risk Use this minimum distance Can overall response time be reduced or can parameter C be reduced ? Reduce overall response time and/or reduce parameter C Use additional or alternative protective equipment 18 The overall stopping time T is made up of two parts: T = t1 + t2 t1 is the maximum time between actuation of the sensing function and the output signal switching devices being in the OFF state. For the mat system, t1 = 35mS. t2 is the response time of the machine i.e.
