The **F2VS-C4-R/Q** is a high-performance **Digital Fiber Optic Sensor** (specifically a sensing amplifier) typically manufactured by brands like **FOTEK** or similar industrial automation providers. These devices are used to detect small objects or marks at high speeds by transmitting light through fiber optic cables. --- ### ## Technical Specifications Overview | Component/Feature | Specification | | :--- | :--- | | **Model** | F2VS-C4-R/Q | | **Output Type** | NPN / PNP (Depending on specific wiring/model variation) | | **Response Time** | High Speed (approx. 50µs to 250µs) | | **Operating Voltage** | 12 - 24 VDC | | **Current Consumption** | < 40 mA | | **Light Source** | Red LED (Visible) | | **Display** | Dual Digital Display (Threshold and Current Value) | | **Connection** | M8 4-pin Connector (indicated by "Q") or Cable | --- ### ### Key Electronic Components & Functions The internal circuitry of the F2VS-C4-R/Q consists of several critical electronic stages: 1. **Emitter Circuitry (The "R"):** Uses a high-intensity Red LED. The "R" in the model name usually signifies a **Red light source**, which is versatile for standard detection tasks. It includes a pulsing circuit to reduce ambient light interference. 2. **Receiver Stage (Photo-diode):** A high-sensitivity phototransistor or photodiode receives the reflected or transmitted light. The analog signal is then sent to an A/D (Analog-to-Digital) converter. 3. **Microprocessor (The "Brain"):** Processes the digital signal to allow for features like: * **Teach-in Mode:** Automatically setting the switching threshold. * **Timer Functions:** On-delay, Off-delay, or One-shot pulse stretching. 4. **Output Driver:** An open-collector transistor circuit (NPN or PNP). The **"C4"** designation often refers to the output configuration or control functionality (e.g., 4-wire or specific output logic). 5. **Status Indicators:** Integrated 7-segment LED displays and status LEDs (Stability/Output) for real-time monitoring. --- ### ### Wiring and Pin Configuration (Q-Type) The "Q" suffix typically indicates a **Quick-disconnect M8 connector**. The standard 4-pin electronic configuration is usually as follows: | Pin Number | Color | Function | | :--- | :--- | :--- | | **1** | Brown | +V (12-24V DC) | | **2** | White | External Input / Remote Teach | | **3** | Blue | 0V (GND) | | **4** | Black | Control Output (Signal) | --- ### ### Application Use-Cases * **Small Part Detection:** Detecting tiny electronic components on a feeder. * **High-Speed Counting:** Counting items on a conveyor belt moving at high velocity. * **Position Sensing:** Used in robotic arms for precise end-stop detection.