The **M5MS-Z-R/K** refers to a specific series of high-performance magnetic sensors, typically categorized as **Magnetoresistive (MR) Sensors** or **Magnetic Switch Sensors**. These are commonly used in industrial automation for cylinder position sensing (pneumatic/hydraulic). --- ## 1. Component Overview These parts are designed to detect the proximity of a magnet (usually embedded in a piston) through a non-magnetic housing. The "Z" and "R/K" suffixes usually denote specific wiring configurations or output types. ### Key Specifications | Feature | Typical Value / Description | | :--- | :--- | | **Sensor Type** | Magnetic Reed Switch or Solid State (GMR) | | **Operating Voltage** | 5V to 240V AC/DC (Reed) / 10V to 30V DC (Solid State) | | **Switching Current** | 5mA to 100mA | | **Response Time** | < 1ms | | **Indicator** | LED (usually Red or Green) | | **Enclosure Rating** | IP67 (Water/Dust resistant) | --- ## 2. Part Number Breakdown While manufacturer codes vary slightly, the R/K suffixes generally follow this convention: * **-R (Reed Switch):** Uses physical contacts that close in a magnetic field. Compatible with both AC and DC. * **-K (Solid State/Electronic):** Uses a transistor (NPN or PNP). These have no moving parts, offering a much longer lifespan and faster response times. * **-Z:** Often indicates a specific mounting style (e.g., tie-rod mount or integrated LED circuitry). --- ## 3. Electrical Connection Diagram The wiring depends on whether it is a 2-wire or 3-wire sensor. ### 2-Wire (Common for -R models) ```text [ Power + ] ----( Load )---- [ Brown Wire ] | [ Sensor Unit ] | [ Power - ] ----------------- [ Blue Wire ] ``` ### 3-Wire (Common for -K models - NPN) ```text [ Brown ] ---> +VCC (10-30V) [ Black ] ---> Output (Signal to PLC) [ Blue ] ---> 0V (Ground) ``` --- ## 4. Application Use Cases 1. **Pneumatic Cylinders:** Monitoring the end-stroke or mid-stroke position of a piston. 2. **Limit Switching:** Acting as a non-contact limit switch for moving machinery. 3. **Speed Sensing:** Counting rotations by detecting a magnet on a spinning shaft. ---