1756-PA72 电源模块
Alen-Bradley 1756-PA72是一 种标准电源,主要用于为1756 ControlL ogix机箱的背板供电,使连接到机箱的每个模块都能运行。1756 PA72设计用于接受85-265 VAC的输入电压范围,频率范围为47-63Hz。 它提供75 W @ 0-60°C (+32.. +140 °F) 的输出功率,在4.3VDC时电流容量为3A;10.5VDC时为1A, 2V直流时为8.241756-PA72的保持时间为5个周期@ 85VAC, 50/60 Hz;6个周期@ 120VAC, 50/60 Hz;6个周期@ 200VAC, 50/60 Hz和6个周期@ 240V AC, 50/60 Hz。 保持时间是指电源对消除输入电压和直流电源故障的反应。1756-PA72安装在机箱的左侧位置。它在机箱外部有一个传用的插槽分配,不占用ControlLogix插槽。它可以安装在不同的ControlL ogix机箱中,例如1756-A4、1756-A7. 1756-A10、 1756-A13和1756-A17, 无论是A. B和C系列。此电源重约0.95千克(2.10磅) ,物理尺寸为14.0x11.2x14.5厘米(5.51 x4.41x5.71英寸)。该模块沿Controll ogix机箱具有开放式外壳,因此需要安装在外壳内,以保护硬件免受I业污染物和干扰。1756-PA72可能不用于冗余电源应用,但它也可能用于分布式I/O0 架构。1756-PA72在25至0摄氏度(60至32华氏度)时的功耗为140瓦。该电源的功耗为85.3 BTU/小时,电源的大浪涌电流为20 A.艾伦布拉德利1756-PA72提供内置过流保护。它由用户提供,大电流为15 A.该电源的大变压器负载为100VA, 电压隔离为250伏连续。1756-PA72还具有在3500伏直流电下测试60秒的增强绝缘类型。艾伦布拉德利1756-PA72开放式设备。此电源应安装在针对特定环境条件设计的适当外壳中。外壳内部只能使用工具进入。
队执法人员对阜阳鼎胜新型建材有限公司进行现场检查,发现该公司烟气自动监测设备烟尘仪接受镜片上贴有黑色绝缘胶布。执法人员调阅该公司自动监控历史数据发现,工控机界面显示4月26日12时36分前,颗粒物浓度自动监测数据(实测值)始终保持在2.0mg/m3以下1756-PA72 电源模块 12时37分为7.56 mg/m3,12时38分后始终保持在13mg/m3以上。经调查,确定该公司为逃避监管干扰自动监测设备而故意粘贴黑色绝缘胶布,并于检查当日12时36分将其揭除,导致自动监测数据失真。
该公司上述行为违反了《中华人民共和国环境保护法》第四十二条第四款和《中华人民共和国大气污染防治法》第二十条第二款的规定,阜阳市颍东区生态环境分局根据《中华人民共和国大气污染防治法》第九十九条第(三)项的规定,责令该公司改正上述环境违法行为、停产整治,并处罚款10万元;根据《中华人民共和国环境保护法》第六十三条第(三)项和《行政主管部门移送适用行政拘留环境违法案件暂行办法》第六条第(四)项的规定将该案件移送公安机关1756-PA72 电源模块 对该公司法定代表人行政拘留10日。
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1756-EN2T 通信模块
The Alen-Bradley 1756-PA72 is a standard power supply designed primarily to power the backplane of the 1756 ControlL ogix chassis, enabling operation of every module connected to the chassis. The 1756 PA72 is designed to accept an input voltage range of 85-265 VAC with a frequency range of 47-63Hz. It provides 75 W @ 0-60°C (+32.. +140 °F) output power with 3A current capability at 4.3VDC; 1A at 10.5VDC, 8.241756 at 2V DC - 5 cycles of hold time @ 85VAC, 50/60 Hz; 6 cycles @ 120VAC, 50/60 Hz; 6 cycles @ 200VAC, 50/60 Hz and 6 cycles @ 240V AC, 50/60 Hz. Hold-up time refers to the response of the power supply to eliminate input voltage and DC power supply failures. The 1756-PA72 is mounted in the leftmost position of the chassis. It has a common slot assignment on the outside of the chassis and does not occupy a ControlLogix slot. It can be installed in different ControlL ogix chassis, such as 1756-A4, 1756-A7. 1756-A10, 1756-A13 and 1756-A17, either A. Series B and C. This power supply weighs approximately 0.95 kg (2.10 lb) and measures 14.0x11.2x14.5 cm (5.51 x 4.41 x 5.71 inches). The module has an open enclosure along the Controll ogix chassis, so it needs to be installed inside the enclosure to protect the hardware from industry contaminants and interference. The 1756-PA72 may not be used for redundant power applications, but it may also be used in distributed I/O0 architectures. The 1756-PA72 consumes 140 watts at 25 to 0 degrees Celsius (60 to 32 degrees Fahrenheit). The power supply consumes 85.3 BTU/hr and the maximum inrush current of the power supply is 20 A. The Allen Bradley 1756-PA72 offers built-in overcurrent protection. It is provided by the user and has a maximum current of 15 A. This power supply has a maximum transformer load of 100VA and voltage isolation of 250 volts continuous. The 1756-PA72 also has a reinforced insulation type that is tested for 60 seconds at 3500 VDC. Alan Bradley 1756-PA72 open frame device. This power supply should be installed in an appropriate enclosure designed for specific environmental conditions. The inside of the enclosure can only be accessed using tools.
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