The **W2SP-2A2-R2/UL** is a high-performance **Programmable Power Transducer** manufactured by M-System (a division of MG CO., LTD). It is primarily used in industrial automation to convert electrical parameters (like AC voltage, current, and power) into standardized DC signals for PLC or SCADA systems. --- ## 1. Technical Specifications The following table outlines the core electronic characteristics of the device: | Feature | Specification | | :--- | :--- | | **Input Type** | Single-phase, 2-wire AC | | **Input Parameters** | Voltage, Current, Active/Reactive/Apparent Power, Power Factor, Frequency | | **Output Type** | Dual DC Output (2 channels) | | **Response Time** | ≤ 0.5 seconds (0 to 90%) | | **Accuracy** | ±0.5% (for most ranges) | | **Isolation** | 4-way isolation (Input, Output 1, Output 2, Power) | | **Certification** | UL Listed (UL 61010-1), CE Marking | --- ## 2. Key Component Features ### A. Dual Output Configuration The "2A2" in the model name indicates the output configuration: * **Independent Channels:** It provides two separate DC outputs which can be configured for different ranges (e.g., Output 1: 4-20mA, Output 2: 1-5V). * **Programmable:** Using a PC or a handheld programmer, the user can scale the output signal relative to the measured AC input. ### B. Signal Conditioning & Isolation The device utilizes high-grade internal transformers and opto-isolators to ensure: * **Safety:** 2000V AC isolation between all ports. * **Noise Rejection:** Protects the PLC/DCS from high-voltage surges or electrical noise originating from the motor or power line being monitored. ### C. Digital Processing Internally, the unit performs **True RMS** conversion. This means it accurately measures power even if the input waveform is distorted by non-linear loads (such as Variable Frequency Drives). --- ## 3. Wiring and Installation The device typically uses a **socket-mounted design** (W2 series) for easy DIN-rail installation and maintenance. ```text Terminal Connections (General Reference): [1] Power Input (+) [5] Input Current (L) [2] Power Input (-) [6] Input Current (N) [3] Output 1 (+) [7] Input Voltage (L) [4] Output 1 (-) [8] Input Voltage (N) ``` ---