FBM219 RH916RH FOXBORO 电压监控器组隔离

FBM219 RH916RH FOXBORO 电压监控器组隔离

输入接线：输入接线yi般不要太长。但如果环境干扰较小，电压降不大时，输入接线可适当长些；输入／输出线不能用同yi根电缆，输入／输出线要分开；尽可能采用常开触点形式连接到输入端，使编制的梯形图与继电器原理图yi致，便于阅读。

输出连接：输出端接线分为独立输出和公共输出。在不同组中，可采用不同类型和电压等ji的输出电压，但在同yi组中的输出只能用同yi类型、同yi电压等ji的电源。由于PLC的输出元件被封装在印制电路板上，并且连接至端子，若将连接输出元件的负载短路，将烧毁印制电路板。采用继电器输出时，所承受的电感性负载的大小，会影响到继电器的使用寿命，因此，使用电感性负载时应合理选择，或加隔离继电器。PLC的输出负载可能产生干扰，因此要采取措施加以控制，如直流输出的续流管保护，交流输出的阻容吸收电路。

端子通常指由铜材等冲制而成的连接器接触件。端子是连接电气线路的常用元件，主要在器件与组件、组件与机柜、系统与子系统之间起电连接和信号传递的作用，并且尽量保持系统与系统之间不发生信号失真和能量损失的变化.

Input cable: The input cable should not be too long. However, if the environmental interference is small and the voltage drop is not large, the input wire can be appropriately long; Input/output line can not be used with yi cable, input/output line should be separated; As far as possible, the normally open contact form is connected to the input end, so that the ladder diagram and the relay schematic diagram are identical, easy to read.

Output connection: The output terminal is divided into independent output and public output. In different groups, different types and voltages of ji output voltages can be used, but the output in the same yi group can only use ji power supplies of the same type and voltage. Since the output component of the PLC is packaged on the printed circuit board and connected to the terminal, if the load connected to the output component is short-circuited, the printed circuit board will be burned. When the relay output is used, the size of the inductive load to be borne will affect the service life of the relay, therefore, the use of inductive load should be a reasonable choice, or add an isolated relay. The output load of PLC may cause interference, so measures should be taken to control it, such as the continuous current tube protection of the DC output and the resistance and capacitance absorption circuit of the AC output.

Terminals usually refer to connector contacts made of copper, etc. Terminals are commonly used to connect electrical lines, mainly in the device and component, component and cabinet, system and subsystem between the electrical connection and signal transmission, and try to keep the signal distortion and energy loss between the system and the system change.