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该直流输入的功耗。对于交流输入模块,将输入电压乘以电流值乘以估计的接通时间百分比乘以0.10(功率因数常数),得出该交流输入的平均功耗。对模块上的所有输入重复上述步骤。为了节省时间,您可以确定多个输入在电流消耗和接通时间上是否相似,这样您只需进行一次计算。对机架中的所有离散输入模块重复这些计算。离散交流输入模块示例:(注意在计算该交流输入模块时使用功率因数常数。功率因数常数仅用于交流输入模块计算。)第6章中IC693MDL240 16点离散120 VAC输入模块的“规格”表提供了以下信息:输入电流:额定电压下的12 mA(典型值)将该值用于该模块的所有输入计算。在本例中,输入模块的八个点用于开关,对于正常操作,开关在100%时间内保持打开(关闭)。这些开关包括紧急停机、超温、润滑压力正常和类似开关。使用公式平均功耗=输入电压x输入电流(单位:安培)x接通时间的百分比(以十进制表示)x 0.10功率因数常数:120 x.012 x 1.0 x 0.10=0.144瓦特/输入然后将此结果乘以8:0.144瓦特x 8输入=8输入的总功率1.152瓦特。在本示例中,此16点模块上的两个输入点用于控制开启和泵启动按钮。在正常情况下,这些按钮每天只按一次,持续约一秒钟,时间刚好足以启动控制器和泵。因此,它们对我们的功率计算的影响可以忽略不计,我们将假设功耗为
power dissipation for that DC input.For AC input modules, multiply the input voltage times the current value times the estimated percent of on–time times 0.10 (power factor constant) to arrive at average power dissipation for that AC input.Repeat for all inputs on the module. To save time, you could determine if several inputs were similar in current draw and on–time so that you would only have to make their calculation once.Repeat these calculations for all Discrete Input modules in the rack. Discrete AC Input Module Example: (Note the use of the power factor constant in the calculation for this AC input module. The power factor constant is only used for AC input module calculations.) The “Specifications” table for the IC693MDL240 16–Point Discrete 120 VAC Input Module in Chapter 6 gives the following information: Input Current: 12 mA (typical) at rated voltage Use this value for all of the input calculations for this module. In this example, eight of the Input Module’s points are used for switches that, for normal operation, stay on (closed) 100% of the time. These include the Emergency Stop, Over Temperature, Lube Pressure OK, and similar switches. Use the formula Average Power Dissipation = Input Voltage x Input Current (in Amps) x Percent (expressed as a decimal) of on–time x 0.10 power factor constant: 120 x .012 x 1.0 x 0.10 = 0.144 Watts per input Then multiply this result by 8: 0.144 Watts x 8 inputs = 1.152 Watts total for the 8 inputs Also in this example, two input points on this 16–point module are for the Control On and Pump Start pushbuttons. Under normal conditions, these pushbuttons are only pressed once per day for about one second – just long enough to start up the control and pump. Therefore, their effect on our power calculation is negligible and we will assume a power dissipation of
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●使用前:
在操作和维护,安装设备之前,请阅读并严格遵守安全相关的信息。
Read and strictly follow safety-related information before operatingmaintainingand installing equipment.
●使用者要求:
必须从事安装,组装或维护设备等相关工控电气机械以及其他相关技术的人员。
Must be engaged in the installation,assembly or maintenance of equipment and other related industriacontroeectrica machinery and other related technica personne.应用范围:
应用于品牌本系列工业以及生产生活自动化设备产品。
Used in the brand of this series of industriaand production automation eauipment products
适用于场景:系统集成,非标定制,产线升级改造,原设备电气替换等等。
Suitable for scenarios:system integration,non-standard customizationproduction line upgrading and transformation,electrical replacement of original equipment,etc.
●操作人员:
应该由本品牌专业培训操作员来安装、操作和维修设备。专业人员具有技术能力强,熟悉安全信息和安全实施:
熟悉设备的安装加工、操作和维护:熟悉处理所有的潜在危险情况。
Equipment should be installed,operated and maintained by trained operators from the brand
●危险情况
警告
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●除了产品特性以及功能,还需了解产品的使用寿命环境。
●充分学习产品使用手册,否则非专业人员可能会造成人身危险。
Study the product instruction manual thoroughlyotherwise it may cause personal danger to non-professionals.
●服务行业
适用水泥,木业,石业,橡胶,石油,化工,发电,环保,水处理,制冷,交通,钢铁,食品,饮料,船舶,制冷等行业
Applicable to cementwood,stone,rubber,petroleumchemical, power generation,
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