PP826A 3BSE042244R3模拟量输入模块
所遵循的程序细节基于欧洲最佳实践，并符合欧盟机械指令。即使这些要求不适用于您的安装，我们建议您遵循相同的步骤，但修改细节以符合相关法定要求或实践规范（例如ANSI、OSHA）。5.1危险的性质当操作员在危险附近时，该系统可通过隔离电源消除危险。需要采取额外措施来处理风险评估中确定的其他危险（例如零件喷射、热表面等）。这些措施可能包括固定防护装置、联锁防护装置、警告通知等。如果需要，请联系供应商获取更多信息。注：风险评估包含在EN 291-1中，并在EN 1050.5.2安全保护性质中详细说明。系统设计必须满足三个主要要求：1.如果有人能够进入危险区域，则必须停止机器。2.在接近人员能够进入危险区域之前，机器必须停止。3.不得轻易绕过系统。建议使用垫子系统，可在可能进入危险区域的整个区域进行存在感测。（参见图9中的示例）。不建议将垫子系统用于其他用途，例如，仅用作周界门禁或机器启用装置。如果您正在考虑将垫子系统用于本手册未涵盖的任何应用，请联系供应商。图9 14 5.3环境和操作条件参考第4节中给出的规范和本节中的信息，确保不存在可能影响系统完整性的不利因素。5.3.1传感器垫乙烯基覆盖物的耐化学性–垫覆盖物的耐水性–优秀的乙醇–优秀的氯化钠–优秀的漂白–优秀的盐酸–优秀的硫酸–优秀的硝酸–优秀的乙酸–优秀的石油（汽油）–优秀的三氯乙烯–优秀的苯–较差的丙酮–较差一般来说，覆盖物具有优异的耐酸、耐碱和耐盐性。热酸和碱，以及浓酸和有机酸，对长时间接触有有害影响。该覆盖物对脂肪族溶剂具有较好的耐受性，对芳香族和氯化溶剂具有较好到较差的耐受性以及对酮和大多数酯的较差耐受性。
The detail of the procedures which follow is based on European best practice, and compliance with EU Machinery Directive. Even if these requirements do not apply in your installation, we recommend that you follow the same steps but modify the detail to suit relevant statutory requirements or codes of practice (e.g. ANSI, OSHA). 5.1 NATURE OF HAZARD The system provides protection against risks which can be eliminated by the isolation of electrical power when an operator is in the vicinity of the hazard. Additional measures be required to deal with other hazards identified at a risk assessment (e.g. part ejection, hot surfaces etc.). These measures may include fixed guards, interlocked guards, warning notices etc. Contact supplier for further information if required. NOTE: Risk assessment is included in EN 291-1 and detailed in EN 1050. 5.2 NATURE OF SAFEGUARDING The system design must satisfy three main requirements: 1. The machine must be stopped if a person is in a position of being able to reach into the hazard zone. 2. The machine must come to a stop before an approaching person can be in the position of being able to reach into the hazard zone. 3. The system shall not be easily bypassed. The recommended use of the mat system gives presence sensing over the whole area where access is possible to the hazard. (see the examples in fig. 9 ). Other uses of mat system, for example, solely as a perimeter access guard, or as a machine enabling device are not recommended. If you are considering mat system for any application not covered by this manual, please contact Supplier. Fig. 9 14 5.3 ENVIRONMENT AND OPERATING CONDITIONS By reference to the specifications given in section 4 and the information in this section, ensure that there are no adverse factors which could compromise the integrity of the system. 5.3.1 CHEMICAL RESISTANCE OF SENSOR MAT VINYL COVERING Substance – Resistance of mat covering WATER – EXCELLENT ETHYL ALCOHOL – EXCELLENT SODIUM CHLORIDE – EXCELLENT BLEACH – EXCELLENT HYDROCHLORIC ACID – FAIR to EXCELLENT SULPHURIC ACID – FAIR to EXCELLENT NITRIC ACID – FAIR to EXCELLENT ACETIC ACID – FAIR PETROL (GASOLINE) _ FAIR TRICHLORETHYLENE – FAIR to POOR BENZENE – POOR ACETONE – POOR In general the covering has excellent resistance to acids, alkalis and salts. Hot acids and alkalis, as well as concentrated and organic acids, have a deleterious effect on prolonged exposure. The covering has fair resistance to aliphatic solvents, fair to poor resistance to aromatic and chlorinated solvents and poor resistance to ketones and most esters.
