PFSK162 3BSE015088R1工控备件模块
将检查和测试记录在书面日志中。37.8.4拆卸和处置拆卸垫子系统与安装程序相反，不会产生额外的危险。在开始工作之前，确保机器和垫子系统的电源被隔离并锁定在电源上。如果系统要重新配置或重新定位，请遵守第1节中给出的搬运预防措施。垫子系统不包含任何需要特殊预防措施处理的危险材料。8.5故障查找在使用电源对垫子控制系统进行操作之前，断开原动机。遵守电气安全预防措施。8.5.1症状–如果垫子上没有任何东西，并且遵循了正确的重置程序，则无法启动机器。1.如果垫子控制单元上的MACHINE ENABLED LED（机器启用LED）亮起，则机器或垫子系统外部的控制系统可能存在故障。检查控制单元安全输出线路中的外部保险丝，必要时予以更换。确保使用正确的保险丝值（最大2A）。将更换记录在检查日志中。如果保险丝立即熔断或需要提前更换，则垫控制单元的安全输出和机器的最终控制元件（接触器）之间的机器控制电路可能存在故障。2.如果垫子控制单元上的MACHINE ENABLED LED（机器启用LED）熄灭，请采取以下措施：检查POWER LED（电源LED）是否点亮。如果不是，请检查垫子控制单元的电源。检查电源是否连接到适当的端子。检查控制单元中的主保险丝和辅助保险丝，必要时予以更换。确保一次保险丝和二次保险丝使用正确的保险丝值（500mA防浪涌）。将更换记录在检查日志中。如果保险丝立即熔断或需要提前更换，请联系供应商。3.如果垫控制单元上的MACHINE ENABLED LED（机器启用LED）熄灭，POWER LED（电源LED）点亮。在带有接触器监控的双通道系统上，如果外部安全输出保险丝未熔断，则控制单元外部仍可能存在故障。任一接线通道中的单一故障将导致垫子控制单元锁定安全输出，直到故障得到纠正并重置控制单元。检查系统中的所有连接导线是否正确配置且未损坏，两个接触器是否正常工作。排除所有故障，如果处于手动复位模式，则按下并释放控制单元复位按钮。4.如果问题未得到解决，请联系供应商。38 8.5.2症状–机器无法停止或可以在垫子上启动。不允许使用机器1。如果垫子上有机器，垫子控制单元上的机器启用LED是否点亮？2.如果MACHINE ENABLED LED（机器启用LED）未亮起，则机器或其控制系统在垫系统外部可能存在故障。–在排除和测试故障之前，不得使用机器。3.如果机器启用LED亮起。-不允许使用机器，并立即联系供应商。8.5.3症状–机器在传感器垫上不存在的情况下意外停止，但可以在踩下垫后重新启动（并在手动重置模式下重置）。1.检查所有指示灯是否正常工作。如果是这样的话，问题很可能是由某个值和持续时间的供电下降引起的。这可能会导致控制单元中的一个内部继电器断开，从而模拟故障状况。这是极不可能发生的情况，不需要采取补救措施。在问题持续存在的异常情况下，可能需要采取措施以确保向垫子系统提供更顺畅的电源。8.6维修在垫系统或机器控制系统上工作之前，
Record the inspection and test in a written log. 37 8.4 DISMANTLING AND DISPOSAL Dismantling the mat system is the reverse of the installation procedure and no extra hazards are presented. ENSURE THAT THE MACHINE AND MAT SYSTEM POWER IS ISOLATED AND LOCKED OFF AT SOURCE BEFORE STARTING WORK. If the system is to be reconfigured or relocated, observe the handling precautions given in section 1. The mat system does not contain any hazardous materials which require special precautions for disposal. 8.5 FAULT FINDING Disconnect prime mover prior to working on mat control system with power applied. Observe electrical safety precautions. 8.5.1 Symptom – With no presence on the mat and after the correct reset procedure has been followed, the machine cannot be started. 1. If the MACHINE ENABLED LED on the mat control unit is ON there is a probable fault on the machine or its control system external to mat system. Check the external fuses in the control unit safety output wiring and replace if necessary. ENSURE THAT THE CORRECT VALUE OF FUSE IS USED (2A max). Record the replacement in the inspection log. If either fuse blows immediately or requires early replacement there is a probable fault in the machine control circuit between the safety output of the mat control unit and the machine’s final control element(s) (contactors). 2. If the MACHINE ENABLED LED on the mat control unit is OFF, take the following actions: Check that the the POWER LED is illuminated. If it is not, check the power supply to the mat control unit. Check that the power supply is connected to the appropriate terminals. Check the primary and secondary fuses in the control unit and replace if necessary. ENSURE THAT THE CORRECT VALUE OF FUSE IS USED (500mA anti-surge) for both primary and secondary fuses. Record the replacement in the inspection log. If either fuse blows immediately or requires early replacement please contact the supplier. 3. If the the MACHINE ENABLED LED on the mat control unit is OFF and the POWER LED is ON. On dual channel systems with contactor monitoring, if the external safety output fuses have not blown, it is still probable that there is a fault external to the control unit. A single fault in either wiring channel will cause the mat control unit to lock off the safety outputs until the fault is rectified and the control unit is reset. Check that all connecting wiring in the system is configured correctly and has not been damaged and that both contactors are functioning correctly. Rectify any faults and if in manual reset mode press and release the control unit reset button. 4. If the problem is not resolved please contact the supplier. 38 8.5.2 Symptom – Machine does not stop or can be started with presence on the mat. DO NOT ALLOW USE OF THE MACHINE 1. With presence on the mat, is the MACHINE ENABLED LED illuminated on the mat control unit ? 2. If the MACHINE ENABLED LED is not illuminated there is a probable fault on the machine or its control system external to the mat system.– DO NOT ALLOW USE OF THE MACHINE UNTIL THE FAULT HAS BEEN RECTIFIED AND TESTED. 3. If the MACHINE ENABLED LED is illuminated.– DO NOT ALLOW USE OF THE MACHINE AND CONTACT THE SUPPLIER IMMEDIATELY. 8.5.3 Symptom – Machine stops unexpectedly with no presence on the sensor mat but can be restarted after stepping on and off the mat (and resetting when in manual reset mode). 1. Check that all indicator lights are operating correctly. If they are, the problem is likely to be caused by a dip in supply power of a certain value and duration. This can cause one of the internal relays in the control unit to drop out, thus simulating a fault condition. This is a very unlikely occurrence and no remedial action is required. In the unusual event of the problem persisting, measures may be required to ensure a smoother power supply to the mat system. 8.6 REPAIR Prior to working on the mat system or machine control system,
