ABB 57160001-AK DSDO120 备件板 工控系统自动化备件
大型程序来控制设备机
使用EMC电缆压盖或普通塑料电缆压盖，拆下外护套，并使用360°金属电缆夹将屏蔽连接到安装板。5352屏蔽电缆接地平面1接地平面2接地板另一建筑物中的接地板0.1 uF/250 V不相同电位5353金属机柜金属机柜端子或连接器端子或连接器EMC电缆密封套塑料电缆密封套屏蔽电缆钢制短距离环境温度部分7其他安装提示48 3BSE043449R501•将一个电缆干线/电缆管道中的24V DC和通信电缆，另一个电缆管道中230/380V AC。如果电缆需要交叉，则仅以90°交叉。避免将更强的24 V DC输出电缆与通信电缆结合。•扣在屏蔽电缆上的铁氧体磁芯可以消除轻微干扰。将大型铁氧体片卡在非屏蔽电缆上，并且导线绕线芯移动2-4倍，效率约为5-25倍。环境温度操作员面板的最高环境温度在规范中提供。环境温度是指设备机柜中冷却面板电子设备的温度。5354顶部50°内部中间45°内部底部40°内部操作面板30°C外部电源功率气流轴流风扇120x120 mm第7节其他安装提示环境温度3BSE043449R501 49在大多数情况下，操作面板的环境温度明显高于设备机柜的环境温度。如果机柜很高，并且有许多发热装置，机柜顶部的温度将大大高于预期的理论温度升高。所有电子器件都对热敏感。随着温度升高8-10°C，电解电容器的寿命缩短一半。15-20°C的温度升高会导致四分之一的寿命等。Rittal有一个很好的程序来估计机柜内的预期平均温度，以及一个大型程序来控制设备机柜内的温度。搪瓷涂层钢制机柜的辐射热值为5.5 W/m2和°C。
在机柜内安装风扇将使温度均匀，而移动空气比静止空气提供更好的冷却效果。合适的风扇为120 x 120 mm轴流风扇，可提供24 V DC、115和230 V AC。安装风扇时，使其位于冷却器区域，并将冷空气吹向操作面板。如果风扇安装在顶部并向上吸入空气，风扇的环境温度将更高=使用寿命更短。带滚珠轴承安装的好风扇在40°C下的预期寿命至少为40000小时（非保证寿命）。这相当于至少连续使用4年。如果安装了恒温器，风扇只需要在需要时启动。背景照明关闭时，大型图形终端仅消耗五分之一的电流。损耗效应从例如25 W降至仅5 W。操作员面板的损耗效应=电源电压x电流。实际上，外部用户没有电源，输入也不会造成损失。
Large program to control equipment
Use EMC cable gland or ordinary plastic cable gland to remove the outer sheath, and use 360 ° metal cable clamp to connect the shield to the mounting plate. 5352 Shielded cable grounding plane 1 Grounding plane 2 Grounding plate 0.1 uF/250 V different potential in another building 5353 Metal cabinet Metal cabinet terminal or connector terminal or connector EMC cable gland Plastic cable gland Shielded cable Steel short distance ambient temperature part 7 Other installation tips 48 3BSE043449R501 • Connect 24V DC and communication cable in one cable trunk/cable duct and 230/380V AC in the other cable duct. If cables need to be crossed, only cross at 90 °. Avoid combining stronger 24 V DC output cables with communication cables. • The ferrite core fastened on the shielded cable can eliminate slight interference. The large ferrite sheet is clamped on the unshielded cable, and the conductor moves 2-4 times around the core, and the efficiency is about 5-25 times. Ambient Temperature The maximum ambient temperature of the operator panel is provided in the specification. The ambient temperature refers to the temperature of the electronic equipment cooling the panel in the equipment cabinet. 5354 top 50 ° internal middle 45 ° internal bottom 40 ° internal operation panel 30 ° C external power supply air flow axial fan 120x120 mm Section 7 Other installation tips Ambient temperature 3BSE043449R501 49 In most cases, the ambient temperature of the operation panel is significantly higher than the ambient temperature of the equipment cabinet. If the cabinet is very high and there are many heating devices, the temperature at the top of the cabinet will be much higher than the expected theoretical temperature rise. All electronic devices are sensitive to heat. As the temperature rises by 8-10 ° C, the life of the electrolytic capacitor is shortened by half. A temperature rise of 15-20 ° C will result in a quarter of the life, etc. Rittal has a good program to estimate the expected average temperature in the cabinet, and a large program to control the temperature in the equipment cabinet. The radiant heat value of enamel coated steel cabinet is 5.5 W/m2 and ° C.
Installing a fan in the cabinet will equalize the temperature, and moving air provides better cooling than static air. Suitable fans are 120 x 120 mm axial fans, which can provide 24 V DC, 115 and 230 V AC. When installing the fan, place it in the cooler area and blow cold air to the operation panel. If the fan is mounted on the top and draws air up, the ambient temperature of the fan will be higher=the service life will be shorter. The expected life of a good fan installed with ball bearings at 40 ° C is at least 40000 hours (non guaranteed life). This is equivalent to at least 4 years of continuous use. If a thermostat is installed, the fan only needs to be started when required. When the backlight is off, large graphics terminals consume only one fifth of the current. The loss effect is reduced from e.g. 25 W to only 5 W. Loss effect of operator panel=supply voltage x current. In fact, the external user has no power supply, and the input will not cause loss.
