控制模块
SCYC51040输入输出模块也称为控制模块,在有控制要求时可以输出信号,或者提供一个开关量信号,使被控设备动作,同时可以接收设备的反馈信号,以向主机报告,是火灾报警联动系统中重要的组成部分,市场上的输入输出模块都可以提供一对无源常开/常闭触点,v用以控制被控设备,部分厂家的模块可以通过参数设定,设置成有源输出(如海湾GST-LD-8301),相对应的还有双输入输出模块、多输入输出模块等等。
因开关电源工作效率高,一般可达到80%以上,故在其输出电流的选择上,应准确测量或计算用电设备的最大吸收电流,以使被选用的开关电源具有高的性能价格比,通常输出计算公式为:
Is=KIf
式中:Is—开关电源的额定输出电流;
If—用电设备的最大吸收电流;
K—裕量系数,一般取1.5~1.8;
Control module
SCYC51040Input/output module is also known as the control module, when there are control requirements can output signals, or provide a switching signal, so that the controlled device action, at the same time can receive the feedback signal of the device, to report to the host, is an important part of the fire alarm linkage system, the input/output module on the market can provide a pair of passive normally open/normally closed contacts. In order to control the controlled equipment, some manufacturers' modules can be set to active output (such as Gulf GST-LD-8301) through parameter setting, corresponding to double input output module, multi-input output module and so on.
Because the switching power supply work efficiency is high, generally can reach more than 80%, so in the selection of its output current, should accurately measure or calculate the maximum absorption current of the electrical equipment, so that the selected switching power supply has a high performance-to-price ratio, usually the output calculation formula is:
Is=KIf
Where: Is - rated output current of switching power supply;
If - the maximum absorbed current of the electrical equipment;
K - margin coefficient, generally 1.5 ~ 1.8;
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