PFSK193 3BSC990116R1机器人备件
周界防护区域内的系统如果危险周围的区域完全封闭在防护周界内，prEN 999的要求可能不适用。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13注：固定防护装置应符合EN 953、EN 294和EN 811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EN 1088）。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EN 999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）19 5.5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EN 953、EN 294和EN 811的要求。5.6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14所示。图14 1。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。2.倾斜盖板防止操作员站在机器底板上避开感应区域。3.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。4.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。5.复位按钮位于保护良好的位置，可完全看到机器。6.垫安装正确。5.7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。系统的安全输出触点布置为两个独立的无电压N/O触点对。端子位置在第6.2节中给出，额定值在第4.1 2 6 4 5 1 3 20节中给出。根据EN 954-1，控制单元符合第3类。与其他安全垫和地板一样，传感器垫的第3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EN 954-1，传感器垫符合第1类。由互连传感器垫和控制单元组成的系统符合EN 954-1第3类的要求。垫系统可用作鞋底保护
SYSTEM WITHIN A PERIMETER GUARDED AREA If the area around the hazard is totally enclosed within a guarded perimeter, the requirements of prEN 999 may not apply. In these applications the mat system detects the presence of an operator to prevent the perimeter guarding system being reset and the machine re-started while the operator is inside the enclosure. Fig. 13 NOTE: Fixed guarding should meet the requirements of EN 953, EN 294 & EN 811. A suitable perimeter guarding system would be a fixed guard with an access door fitted with an interlock switch with conditional guard unlocking (see EN 1088). A trip device such as a safety light curtain may also be suitable for some applications. It is important to note that the positioning of the light curtain must be calculated according to EN 999. When using the mat system for these applications the entire enclosed floor area accessible to the operator should be covered by sensor mats. HAZARD PRESSURE SENSITIVE MATS FIXED GUARDING INTERLOCKED DOOR (WITH LOCKING) 19 5.5 FIXED GUARDS The fixed guards should be designed so that access is not possible to the hazard zone other than via mat system. Guard construction and positioning should be in accordance with EN 953, EN 294 and EN 811. 5.6 GOOD INSTALLATION DESIGN AND MEASURES AGAINST BYPASS It must not be possible to reach the hazard without standing on the mats. Access to the hazard zone from positions which do not involve standing on the mats must be prevented. This will typically require additional angle plates and careful positioning of pipework and trunking. Good practice in this respect is illustrated in fig. 14. Fig 14 1. Fixed guards prevent access to the hazard zone in such a way that there is no access between the guard and sensors. 2. A sloping cover plate prevents the operator eluding the sensing area by standing on the machine base plate. 3. The tripping hazard at the sensor edge is reduced by a ramp at the point of access. The ramp may also protect connecting cables. The optional perimeter trim is a ramp section. 4. Cable trunking is installed outside of the fixed guard. This prevents its misuse as access to the hazard zone. 5. A reset button is located in a well protected location giving full visibility of the machine. 6. Mats are properly installed. 5.7 ELECTRICAL INTERFACING THE PROTECTION PROVIDED BY THE SYSTEM DEPENDS ON THE CORRECT INTERFACING BETWEEN THE SYSTEM AND THE MACHINE. The safety output contacts from the system are arranged as two independent voltage free N/O contact pairs. The terminal positions are given in section 6.2 and ratings are given in Section 4. 1 2 6 4 5 1 3 20 The control unit conforms to category 3 according to EN 954-1. In common with other safety mats and floors, category 3 performance for the sensor mat cannot be achieved for faults resulting from severe mechanical damage or long term degradation. The sensor mats conform to category 1 according to EN 954-1. The system comprising of interconnecting sensor mats and control unit meets the requirements of EN 954-1 category 3. The mat system may be used as the sole protective
