VE4001S2T2B5 I/O控制模塊是艾默生公司生產(chǎn)的一款高性能、高可靠性的I/O控制模塊。它具有多種功能和特點(diǎn)，如高精度測量、高速通訊、穩(wěn)定性好和易于集成等。
在I/O模塊中，采用光耦、光電晶閘管、小繼電器等器件隔離PLC內(nèi)部電路和外部I/O電路。I/O模塊除了傳常規(guī)的開關(guān)量信號外，還傳輸一些特殊的開關(guān)量信號，如安全觸點(diǎn)型開關(guān)量信號。這種開關(guān)量信號由兩對觸點(diǎn)組成，一對常閉觸點(diǎn)接在控制模塊的輸入端，另一對常開觸點(diǎn)接在輸出端，只有當(dāng)兩對觸點(diǎn)都處于接通狀態(tài)時(shí)，控制模塊的輸出端才能有輸出信號。
此外，該模塊還具有高可靠性的繼電器輸出功能，其觸點(diǎn)容量為AC250V/DC30V以下時(shí)為16A，DC24V時(shí)為8A。

VE4001S2T2B5

The VE4001S2T2B5 I/O control module is a high-performance, highly reliable I/O control module from Emerson Corporation. It has many functions and features, such as high precision measurement, high speed communication, good stability and easy integration.
In the I/O module, devices such as optocoupler, photothyristor and small relay are used to isolate the internal circuit and external I/O circuit of PLC. In addition to conventional switching signals, I/O modules also transmit some special switching signals, such as safety contact type switching signals. The switching signal is composed of two pairs of contacts, a pair of normally closed contacts are connected to the input end of the control module, and another pair of normally open contacts are connected to the output end. Only when the two pairs of contacts are on, the output end of the control module can have an output signal.
In addition, the module has a highly reliable relay output function with a contact capacity of 16A for AC250V/DC30V and 8A for DC24V.

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