## F2VS-D5W-R Electronic Components & Specifications The **F2VS-D5W-R** is a specialized sensor belonging to the **SMC F2VS series**. It is primarily a flow sensor (flow switch) designed for monitoring coolant or fluids in industrial machinery. --- ### 1. Technical Specifications The following table outlines the core electronic and operational characteristics of the device: | Feature | Specification | | :--- | :--- | | **Input Voltage** | 12 to 24 VDC (±10% ripple) | | **Current Consumption** | 40 mA or less | | **Output Type** | PNP Open Collector (Dual Output) | | **Max. Load Current** | 80 mA | | **Response Time** | 1.0 s or less (Adjustable) | | **Display Type** | 3-digit, 7-segment LED | | **Indicator Light** | Green/Red LED (Switch status) | | **Protection Circuit** | Short-circuit protection & Reverse polarity protection | --- ### 2. Electronic Component Breakdown The internal circuitry of the F2VS-D5W-R consists of several critical subsystems: #### A. Sensing Element (Karman Vortex) Unlike thermal sensors, this device typically utilizes the **Karman Vortex** principle. * **Vortex Generator:** A pillar inside the pipe creates pressure fluctuations. * **Piezoelectric Element:** A vibrating sensor detects these fluctuations and converts them into an electrical frequency proportional to the flow rate. #### B. Signal Processing Unit * **A/D Converter:** Translates the analog frequency from the piezoelectric element into digital data. * **Microprocessor:** Manages the logic for hysteresis, window comparator modes, and the digital display output. #### C. Output Stage (PNP Logic) The "R" suffix in the model name indicates a specific wiring configuration. * **PNP Open Collector:** When the flow reaches the setpoint, the switch connects the output wire to the positive terminal (+V). This is standard for most European and high-safety industrial PLCs. --- ### 3. Wiring Diagram To ensure proper electronic integration, the following wiring colors are standard for this SMC series: ```text Brown (+) : 12 to 24 VDC Blue (-) : 0V (GND) Black (OUT1): PNP Output 1 White (OUT2): PNP Output 2 (or Analog output depending on sub-model) ``` --- ### 4. Key Electronic Features * **Auto-Shift Function:** Compensates for changes in primary pressure to maintain accuracy. * **Switching Modes:** Supports Hysteresis mode and Window Comparator mode for precise control of fluid flow limits. * **Diagnostic LEDs:** Provides immediate visual feedback on the state of the internal transistors.