The **M2UDS-5W0-R** is a specific model within the M2 series of **Plug-in Signal Conditioners** manufactured by **M-System (MG CO., LTD)**. This device is an ultra-slim, signal-powered isolator designed to electrically isolate a DC output signal from its input. --- ### ## Technical Specifications Below are the primary electronic characteristics and ratings for the M2UDS-5W0-R: | Parameter | Specification | | :--- | :--- | | **Model Function** | Signal Powered Isolator (2-wire) | | **Input Signal** | 4 – 20 mA DC | | **Output Signal** | 4 – 20 mA DC | | **Power Input** | Not required (Loop-powered) | | **Response Time** | ≤ 25 ms (0 – 90%) | | **Accuracy** | ±0.1% of span | | **Isolation Resistance** | 100 MΩ minimum (500V DC) | | **Dielectric Strength** | 2000V AC @ 1 minute | --- ### ## Electronic Design Features ### 1. Circuitry Design The "UDS" designation indicates a **Unit-type DC Signal Isolator**. * **Loop-Powered:** The device operates by consuming a small portion of the voltage from the input loop (Voltage drop is typically around 3.7V). It does not require a separate 24V DC or 110/220V AC power supply. * **Optical/Magnetic Isolation:** It uses internal coupling components to ensure that the input side is galvanically isolated from the output side, preventing ground loops and protecting sensitive PLC/DCS inputs. ### 2. Mounting and Housing * **DIN Rail Plug-in:** The electronic module is mounted on a base socket (M2 series standard), allowing for "hot-swapping" or replacement without disconnecting the wiring. * **Compact Form Factor:** The "Ultra-slim" design allows for high-density installation in control panels. ### 3. Safety and Reliability * **Surge Protection:** Built-in protection against line noise and electrical surges. * **Temperature Coefficient:** Typically rated for ±0.015% / °C, ensuring stability in fluctuating industrial environments. --- ### ## Wiring Logic Since this is a loop-powered isolator, the wiring follows a specific serial path: ```text [Input Source (4-20mA)] ----> [Terminals 5(+) & 6(-)] ----> [Internal Isolator] | v [Receiving Device] <--------- [Terminals 1(+) & 2(-)] <---- [Output Circuit] ``` ---