The **PPD-C1P1N-R** is a specific part number belonging to a series of **Photoelectric Sensors**, typically manufactured by brands like Panasonic (formerly Sunx) or similar industrial automation providers. Below is a detailed breakdown of its electronic characteristics and specifications. --- ## 1. Core Specifications These sensors are designed for high-precision detection in industrial environments. | Feature | Specification | | :--- | :--- | | **Sensing Method** | Retroreflective (uses a mirror/reflector) | | **Output Type** | PNP Open Collector | | **Operation Mode** | Light-ON / Dark-ON (Selectable) | | **Supply Voltage** | 12 to 24V DC (±10% ripple) | | **Sensing Distance** | Typically 0.1 to 3 meters (reflector dependent) | | **Response Time** | Approx. 1ms or less | --- ## 2. Electronic Components & Wiring The device integrates several electronic sub-systems to ensure reliable switching. ### Internal Circuitry * **Emitter:** An Infrared (IR) or Visible Red LED that pulses light at a specific frequency to avoid interference from ambient light. * **Receiver:** A phototransistor or photodiode tuned to the emitter's frequency. * **Control Logic:** An ASIC (Application Specific Integrated Circuit) that processes the light signal and manages the output transistor. * **Protection:** Includes reverse polarity protection and short-circuit protection. ### Wiring Configuration The PPD series typically uses a 3-wire or 4-wire standard: | Wire Color | Function | Description | | :--- | :--- | :--- | | **Brown** | +V | Positive Power Supply (12-24V DC) | | **Blue** | 0V | Ground / Negative Supply | | **Black** | Output | PNP Output signal to PLC or Relay | | **White/Pink** | Control | Mode selection (Light-ON / Dark-ON) | --- ## 3. Key Electronic Characteristics * **PNP Switching:** When the sensor is triggered, it connects the output wire to the positive supply voltage (+V). This is standard for European-style PLC inputs. * **Current Consumption:** Low power draw, typically under 30mA, making it efficient for multi-sensor arrays. * **Stability Indicators:** Usually equipped with a Green LED (Stability) and an Orange/Red LED (Operation) to indicate the health of the electronic signal. --- ## 4. Part Number Breakdown (Nomenclature) * **PPD:** Series designation (High-performance Photoelectric). * **C:** Detection type (Retroreflective). * **1:** Sensing range code. * **P:** PNP Output type. * **N:** Connection type (usually indicates NPT threading or a specific cable type). * **R:** Reflector included or specialized Red light source.