IC200MDL940F 通过控制物理继电器的接点来实现电路控制的设备

Description

IC200MDL940F 通过控制物理继电器的接点来实现电路控制的设备

继电器输出模块是一种具有实际物理继电器的输出模块，IC200MDL940F 的输出信号是接点信号（NO或NC）。与晶体管输出模块不同，继电器输出模块需要在外接电源的情况下，才能使继电器接点输出相应的电源。

继电器输出模块的原理图显示，当继电器处于正常工作时，其公共端（COM）和常闭端（NC）接通。如果检测到某种故障（例如闸瓦间隙超限），系统会将继电器引脚置为高电平，使三极管导通，此时继电器动作，其公共端（COM）和常闭端（NC）断开，而与常开端（NO）接通，从而实现对设备的控制。

此外，继电器输出模块的反应速度通常比晶体管输出模块慢，因此在需要高频控制的场合，继电器输出模块可能无法满足要求。然而，继电器在电路中具有安全保护、自动调节、转换电路等多种作用，特别是在自动化的控制电路中，继电器实际上是用小电流去控制大电流运作的一种“自动开关”。

总的来说，IC200MDL940F 继电器输出模块是一种通过控制物理继电器的接点来实现电路控制的设备，具有稳定、可靠、安全等优点，但反应速度较慢，适用于低频控制的场合。

IC200MDL940F 通过控制物理继电器的接点来实现电路控制的设备

The relay output module is an output module with an actual physical relay, and the output signal of the IC200MDL940F is a contact signal (NO or NC). Different from the transistor output module, the relay output module needs an external power supply in order to make the relay contact output the corresponding power supply.

The schematic of the relay output module shows that when the relay is in normal operation, its common end (COM) and normally closed end (NC) are switched on. If a fault is detected (for example, the brake shoe gap exceeds the limit), the system will set the relay pin to a high level, so that the transistor is on, at this time the relay operates, its common end (COM) and normally closed end (NC) are disconnected, and the normal start (NO) is connected, so as to achieve the control of the device.

In addition, the response speed of the relay output module is usually slower than that of the transistor output module, so in the case of the need for high-frequency control, the relay output module may not meet the requirements. However, the relay has a variety of functions in the circuit such as safety protection, automatic regulation, conversion circuit, especially in the automatic control circuit, the relay is actually an “automatic switch” that uses a small current to control the operation of a large current.

In general, the IC200MDL940F relay output module is a device that realizes circuit control by controlling the contact of the physical relay. It has the advantages of stability, reliability, safety, etc., but the reaction speed is slow, and it is suitable for low-frequency control occasions.