The **LR5-102LEBW-R** is a specific model within the Patlite LR5 series of LED signal towers (stack lights). This device is widely used in industrial automation to provide visual and audible status indications for machinery. --- ### 1. Model Breakdown (Nomenclature) To understand the electronic components, it is essential to decode the model number: | Code | Component | Description | | :--- | :--- | :--- | | **LR5** | Series | 50mm diameter body | | **1** | Tier | 1 LED Module (Red) | | **02** | Voltage | 24V DC operating voltage | | **LE** | Module Type | LED High-brightness module | | **BW** | Base Type | Off-white body with Buzzer and Flashing capability | | **R** | Color | Red LED unit | --- ### 2. Key Electronic Specifications The internal electronics are designed for industrial environments, focusing on low power consumption and high durability. * **Operating Voltage:** 24V DC (Polarity sensitive). * **Current Consumption:** * LED Unit: ~40mA. * Buzzer/Flashing Unit: ~40mA. * Total Maximum: ~80mA - 100mA. * **Signaling Type:** NPN/PNP Open Collector compatible. * **Protection Circuitry:** Built-in surge protection and reverse polarity protection. * **Acoustic Element:** Integrated piezoelectric buzzer (approx. 85dB at 1m). --- ### 3. Internal Components and Functionality #### A. The LED Module (LE) The "LE" module uses high-intensity Surface Mount Device (SMD) LEDs. Unlike traditional bulbs, these are arranged to provide 360-degree light dispersion through a multi-faceted internal lens. #### B. The Flash/Buzzer Circuitry (BW) This model includes an internal PCB that handles: 1. **Flashing Control:** An internal oscillator creates a flashing pattern (approx. 60 flashes per minute) when the flashing input wire is triggered. 2. **Sound Generation:** A piezoelectric transducer provides two distinct alarm sounds (selectable via internal dip switches or wiring). #### C. Wiring and Interface The unit uses a color-coded lead wire system. For the **LR5-102LEBW-R**, the primary electronic connections are: * **Red Wire:** Controls the Red LED (Steady). * **Gray/Black Wires:** Control the Flash and Buzzer functions. * **Yellow/White Wires:** Power supply (24V DC). --- ### 4. Environmental & Physical Limits | Feature | Specification | | :--- | :--- | | **Protection Rating** | IP65 (Dust-tight and Water-resistant) | | **Temperature Range** | -20°C to +50°C | | **Mounting** | Direct mount (Pole or Bracket options available) | ---