MVME172-533A機械設(shè)備卡件
圖13注：固定防護裝置應符合EN 953、EN 294和EN 811的要求。合適的周界防護系統(tǒng)應為固定防護裝置，該防護裝置配有檢修門，并配有帶條件防護裝置解鎖的聯(lián)鎖開關(guān)（見EN 1088）。諸如安全光幕的跳閘裝置也可適用于某些應用。需要注意的是，光幕的位置必須根據(jù)EN 999進行計算。在這些應用中使用墊子系統(tǒng)時，操作員可接近的整個封閉地板區(qū)域應覆蓋傳感器墊子。危險壓力敏感墊固定防護聯(lián)鎖門（帶鎖）19 5.5固定防護裝置固定防護裝置的設(shè)計應確保除通過墊系統(tǒng)外，無法進入危險區(qū)域。防護裝置的構(gòu)造和定位應符合EN 953、EN 294和EN 811的要求。5.6良好的安裝設(shè)計和防止旁路的措施如果不站在墊子上，就不可能到達危險區(qū)域。必須防止從不涉及站在墊子上的位置進入危險區(qū)域。這通常需要額外的角板以及管道和線槽的小心定位。這方面的良好實踐如圖14所示。圖14 1。固定防護裝置防止進入危險區(qū)域，從而使防護裝置和傳感器之間無法進入。2.傾斜蓋板防止操作員站在機器底板上避開感應區(qū)域。3.傳感器邊緣的跳閘危險通過入口處的斜坡減少。斜坡還可以保護連接電纜?？蛇x的周界修剪是漸變截面。4.電纜槽安裝在固定防護裝置的外部。這可防止其被誤用為進入危險區(qū)域。5.復位按鈕位于保護良好的位置，可完全看到機器。6.墊安裝正確。5.7電氣接口系統(tǒng)提供的保護取決于系統(tǒng)和機器之間的正確接口。系統(tǒng)的安全輸出觸點布置為兩個獨立的無電壓N/O觸點對。端子位置在第6.2節(jié)中給出，額定值在第4.1 2 6 4 5 1 3 20節(jié)中給出。
根據(jù)EN 954-1，控制單元符合第3類。與其他安全墊和地板一樣，傳感器墊的第3類性能無法在嚴重機械損壞或長期退化導致的故障中實現(xiàn)。根據(jù)EN 954-1，傳感器墊符合第1類。由互連傳感器墊和控制單元組成的系統(tǒng)符合EN 954-1第3類的要求。墊系統(tǒng)可用作唯一的保護措施或與其他措施或裝置（如安全光幕、工作系統(tǒng)）結(jié)合使用。如果協(xié)調(diào)的歐洲“C”標準適用于機器類型，它將包含機器安全相關(guān)控制系統(tǒng)的要求和指南。EN954-1也提供了指導。重要的是，應根據(jù)EN 954-1的適當類別提供針對可預見故障的充分保護，因此，建議在所有高風險應用中使用具有復制和監(jiān)控最終開關(guān)元件（接觸器）的雙通道配置。圖15、16、17和18給出了墊系統(tǒng)的互連示例。21圖15顯示了單接觸器（單通道）、440F-4000P和440F-C4000S應用的示例連接圖。電路狀態(tài)-電源打開-傳感器墊上不存在-復位按鈕已操作（如果處于手動復位模式）-機器啟動電路已啟用。注意：如果接觸器卡在ON位置，則當墊處于ON位置時，電機不會停止。圖16顯示了兩個接觸器和接觸器監(jiān)控（雙通道）440F-4000P和440F-C4000S的應用連接圖示例。電路狀態(tài)-電源打開-傳感器墊上不存在-復位按鈕已操作（如果處于手動復位模式）-機器啟動電路已啟用。注意：如果任何一個接觸器卡在ON（接通）位置，則當墊放在上面時，電機將停止，并檢測到故障。M K1 K2 24VDC，電源L1 L2 L3輔助輸出輔助輸入K1（AUX）K2（au）啟動瞬時按鈕停止瞬時按鈕熔斷器電機保護，例如熱斷路器12 3 4+VE 31 13 23 MC MC 32 14 24控制單元K1 K2-VE正向引導接觸器輔助觸點L N110VAC，230VAC電源（備用電源連接）白色-白色-黑色-黑色傳感器墊內(nèi)部傳感器墊板N/O PB R IND M K1 24VDC，電源L1 L2 L3輔助輸出輔助輸入K1（輔助）啟動瞬時按鈕停止瞬時按鈕保險絲電機保護，例如。
Note to Figure 13: Fixed protective devices shall comply with the requirements of EN 953, EN 294 and EN 811. A suitable perimeter protection system shall be a fixed guard with an access door and an interlock switch with conditional guard release (see EN 1088). 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 EN 999. When using the mat subsystem in these applications, the entire enclosed floor area accessible to the operator shall be covered with the sensor mat. Dangerous pressure sensitive pad fixed protective interlocking door (with lock) 19 5.5 Fixed protective device Fixed protective device shall be designed to ensure that the hazardous area cannot be accessed except through the pad system. The construction and positioning of protective devices shall comply with the requirements of EN 953, EN 294 and EN 811. 5.6 If good installation design and bypass prevention measures do not stand 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 Figure 14. Figure 14 1. Secure the guards to prevent entry into the hazardous area so that there is no access between the guards and the sensors. 2. Tilt the cover plate to prevent the operator from standing on the machine floor to avoid the sensing area. 3. Trip hazard at the edge of the sensor is reduced by the ramp at the entrance. The slope also protects the connecting cable. The optional perimeter trim is a gradient section. 4. The cable tray shall be installed outside the fixed protective device. This prevents it from being misused to enter hazardous areas. 5. The reset button is located in a well protected position, and the machine can be completely seen. 6. The gasket is installed correctly. 5.7 The protection provided by the electrical interface system depends on the correct interface between the system and the machine. The safe output contacts of the system are arranged as two independent voltage free N/O contact pairs. Terminal locations are given in Section 6.2 and ratings are given in Section 4.1 2 6 4 5 1 3 20.
According to EN 954-1, the control unit complies with category 3. As with other safety pads and floors, the Class 3 performance of sensor pads cannot be achieved in the case of failures caused by severe mechanical damage or long-term degradation. According to EN 954-1, the sensor pads comply with category 1. The system consisting of interconnected sensor pads and control units complies with the requirements of EN 954-1, class 3. The cushion system can be used as the only protective measure or in combination with other measures or devices (such as safety light curtain and working system). If the harmonized European "C" standard applies to machine types, it will contain requirements and guidelines for machine safety related control systems. EN954-1 also provides guidance. It is important that adequate protection against foreseeable faults should be provided in accordance with the appropriate categories of EN 954-1, therefore it is recommended that a dual channel configuration with duplicated and monitored final switching elements (contactors) be used in all high-risk applications. Figures 15, 16, 17, and 18 show interconnection examples of the mat system. 21 Figure 15 shows an example connection diagram for single contactor (single channel), 440F-4000P and 440F-C4000S applications. Circuit status - power on - not present on sensor pad - reset button operated (if in manual reset mode) - machine start circuit enabled. Note: If the contactor is stuck in the ON position, the motor will not stop when the pad is in the ON position. Figure 16 shows the application connection diagram example of two contactors and contactor monitoring (dual channel) 440F-4000P and 440F-C4000S. Circuit status - power on - not present on sensor pad - reset button operated (if in manual reset mode) - machine start circuit enabled. Note: If any contactor is stuck in the ON position, the motor will stop and a fault will be detected when the pad is placed on it. M K1 K2 24VDC, power supply L1 L2 L3 auxiliary output auxiliary input K1 (AUX) K2 (au) start instantaneous button stop instantaneous button fuse motor protection, such as thermal circuit breaker 12 3 4+VE 31 13 23 MC MC 32 14 24 control unit K1 K2-VE forward guiding contactor auxiliary contact L N110VAC, 230VAC power supply (standby power connection) white white black sensor pad internal sensor pad N/O PB R IND M K1 24VDC, Power supply L1 L2 L3 auxiliary output auxiliary input K1 (auxiliary) start instantaneous button stop instantaneous button fuse motor protection, for example.
