The **M2VF2-4W4-R2/Q** is a high-performance, compact **Signal Conditioner/Isolator** manufactured by **M-System** (now part of MG CO., LTD.). It belongs to the M2 series of plug-in signal conditioners, designed to convert and isolate analog DC signals for industrial automation and process control. --- ### ## Technical Specifications Breakdown The part number indicates specific configuration options for inputs, outputs, and power supply. | Feature | Specification Details | | :--- | :--- | | **Component Type** | Variable Output Signal Conditioner (Isolator) | | **Input Signal** | 4 to 20 mA DC | | **Output 1** | 4 to 20 mA DC | | **Output 2** | 1 to 5 V DC | | **Power Supply** | 24V DC | | **Accuracy** | ±0.1% of span | | **Response Time** | ≤ 0.5 seconds (0 – 90%) | | **Isolation** | 3-way (Input to Output to Power) | | **Mounting** | DIN rail (via plug-in socket) | --- ### ### Key Electronic Functions 1. **3-Way Isolation:** The device provides electrical isolation between the input, the output, and the power supply (usually up to 2000V AC). This prevents ground loops and protects sensitive PLC/DCS cards from electrical surges. 2. **Dual Output (Splitter Function):** The "W" in the part number often signifies a dual-output configuration. This allows one 4-20mA input loop to drive two separate devices (e.g., a local display and a remote PLC) simultaneously without signal degradation. 3. **Active/Passive Signal Conversion:** It can take a current loop signal and convert it into a voltage signal (1-5V), which is common for legacy analog controllers or specific data loggers. --- ### ### Terminal Configuration (Standard) Typical wiring for the M2 series follows a specific block diagram: ```text [ Input ] (Pins 5 & 6) <--- 4-20mA Source [ Out 1 ] (Pins 1 & 2) ---> 4-20mA Load [ Out 2 ] (Pins 3 & 4) ---> 1-5V Load [ Power ] (Pins 7 & 8) <--- 24V DC ``` --- ### ### Applications * **Ground Loop Elimination:** Resolving potential differences between field instruments and the control room. * **Signal Splitting:** Sending one sensor signal to two different control systems. * **Noise Reduction:** Filtering high-frequency interference from long-distance signal cables.