The **W2VS-1BA-R2/N** is a high-precision, space-saving signal conditioner (transducer) manufactured by **M-System** (now part of MG CO., LTD.). It belongs to the W2 series, which features a dual-output design in a compact plug-in form factor. --- ### 1. Key Technical Specifications The model code `W2VS-1BA-R2/N` can be broken down into its functional components: | Feature | Specification | Description | |:---|:---|:---| | **Primary Function** | Isolator | Provides galvanic isolation between input and output. | | **Input Signal (1)** | 0 – 10V DC | Standard voltage input range. | | **Output 1 (B)** | 2 – 10V DC | First isolated output signal. | | **Output 2 (A)** | 4 – 20mA DC | Second isolated output signal. | | **Power Input (R2)** | 11 – 27V DC | Standard 24V DC control power. | | **Option (/N)** | No Option | Standard configuration without special coatings. | --- ### 2. Internal Electronic Architecture The device utilizes a sophisticated circuit design to ensure signal integrity and protection: * **Galvanic Isolation:** It provides 3-way isolation (Input to Output 1 to Output 2 to Power). This prevents ground loops from damaging sensitive PLCs or DCS systems. * **A/D and D/A Conversion:** Modern versions typically use a high-resolution microcontroller to digitize the input signal, apply linearization or filtering, and then convert it back to precise analog outputs. * **Zero/Span Adjustment:** The front panel contains multi-turn potentiometers. * **Zero:** Adjusts the offset (bottom of the range). * **Span:** Adjusts the gain (top of the range). * **Status Indicator:** Equipped with a front-facing LED to indicate power status and operational health. --- ### 3. Connection Diagram (General) The unit uses a base socket for wiring. Below is the typical pin-out logic for this series: ```text [ Power Supply ] Terminal 7: + (24V DC) Terminal 8: - (GND) [ Input ] Terminal 5: + (0-10V) Terminal 6: - [ Output 1 ] Terminal 1: + (2-10V) Terminal 2: - [ Output 2 ] Terminal 3: + (4-20mA) Terminal 4: - ``` --- ### 4. Applications * **Signal Splitting:** Taking one 0-10V sensor signal and providing two different outputs (e.g., one for a local display and one for a remote PLC). * **Impedance Matching:** Converting a high-impedance voltage signal into a robust 4-20mA current loop for long-distance transmission. * **Noise Reduction:** Eliminating electrical noise and common-mode voltages in industrial environments. ---