The **W2VS-2AY-R2** is a high-performance **Signal Isolator (Transmitter)** from the W2VS series, typically manufactured by companies like **M-System**. It is designed to receive a DC input signal and provide two isolated DC outputs. Below is a breakdown of its electronic specifications and characteristics. ### 1. Model Code Breakdown | Segment | Value | Description | | :--- | :--- | :--- | | **Model** | W2VS | Dual-output Signal Isolator (Thin-line series) | | **Input** | 2 | 0 – 10V DC | | **Output 1** | A | 4 – 20mA DC | | **Output 2** | Y | 0 – 5V DC (User specified) | | **Power** | R2 | 11 – 27V DC | --- ### 2. Key Electronic Specifications The W2VS-2AY-R2 utilizes high-frequency isolation technology to ensure signal integrity and safety in industrial environments. * **Isolation Structure:** 3-way isolation (Input to Output 1 to Output 2 to Power). * **Dielectric Strength:** 2000V AC @ 1 minute (Input to output to power to ground). * **Response Time:** $\leq$ 0.5 seconds (0 – 90%). * **Accuracy:** $\pm$ 0.1% of span. * **Temperature Coefficient:** $\pm$ 0.015% per °C. --- ### 3. Connection Diagram (Standard Pinout) The unit typically uses a tension-clamp or screw terminal block. | Terminal | Function | Description | | :--- | :--- | :--- | | **1 / 2** | Output 1 (+/-) | 4 – 20mA Loop | | **3 / 4** | Output 2 (+/-) | 0 – 5V DC | | **5 / 6** | Input (+/-) | 0 – 10V DC Signal | | **7 / 8** | Power (+/-) | 24V DC Supply | --- ### 4. Circuit Protection Features The device incorporates several internal electronic protections to ensure longevity: 1. **Surge Protection:** Built-in surge absorbers to protect against line noise and lightning induced spikes. 2. **Overcurrent Protection:** The current output (Output 1) is limited to prevent damage to downstream PLC/DCS cards. 3. **Polarity Protection:** Protection against accidental reversal of the DC power supply leads. ### 5. Application Use Case This part is commonly used when a single sensor (e.g., a pressure transducer outputting 0-10V) needs to send data to two separate devices simultaneously—such as a **Local Display** (using the 0-5V signal) and a **Remote PLC** (using the 4-20mA signal)—without the two circuits interfering with each other. ---