The **FVS-KA-R/K** is a specialized electronic sensor component typically used in automated industrial systems, specifically within the **Festo** product ecosystem or similar vacuum-based handling systems. It functions primarily as a **Vacuum/Pressure Switch** or a flow sensor interface. --- ### 1. Key Electronic Specifications The "R/K" designation often refers to the specific output configuration and connection type (typically a round plug or cable transition). | Feature | Specification | | :--- | :--- | | **Operating Voltage** | 10 – 30 V DC | | **Switching Output** | PNP or NPN (Configurable/Model dependent) | | **Switching Function** | Normally Open (NO) / Normally Closed (NC) | | **Current Consumption** | < 30 mA | | **Max. Output Current** | 100 mA | | **Connection Type** | M8 Plug (3-pin) or Open Cable Ends | --- ### 2. Core Electronic Components The internal circuitry of the FVS-KA series is designed for high-speed signal processing: * **Piezoresistive Transducer:** The heart of the unit. It converts mechanical vacuum pressure into a micro-voltage signal. * **Signal Conditioner:** An integrated operational amplifier (Op-Amp) that scales the transducer's weak signal into a standardized voltage. * **Comparator/Microcontroller:** Compares the current pressure against a set threshold. When the threshold is reached, it triggers the digital output. * **LED Indicators:** Most versions include a yellow or green LED for local visual feedback of the switching status. * **Protection Circuitry:** Includes reverse polarity protection and short-circuit protection to prevent damage during installation. --- ### 3. Connection Pinout (Typical M8) If the unit uses a standard M8 3-pin connector, the electronic mapping is as follows: | Pin Number | Wire Color | Function | | :--- | :--- | :--- | | 1 | Brown | +24V DC (Supply) | | 3 | Blue | 0V (GND) | | 4 | Black | Switching Output (Signal) | --- ### 4. Application Logic The electronics are designed to integrate with **PLCs (Programmable Logic Controllers)**. When the vacuum level reaches the "Part Picked" threshold, the electronic switch closes, sending a 24V signal to the PLC input. This tells the machine that it is safe to move the robotic arm without dropping the component. ---