The **KADS-BE-R** refers to a specific series of **Photoelectric Sensors** (often categorized under Beam or Through-beam sensors) commonly used in industrial automation for object detection and safety monitoring. Below is a detailed breakdown of its electronic components, specifications, and wiring structure. --- ## 1. Core Electronic Components A KADS-BE-R system typically consists of two main parts: a **Transmitter (Emitter)** and a **Receiver**. | Component | Function | Key Electronic Parts | | :--- | :--- | :--- | | **Infrared LED** | The light source located in the Emitter. | Gallium Arsenide (GaAs) diode. | | **Phototransistor** | The light-sensitive element in the Receiver. | Silicon-based NPN or PNP phototransistor. | | **Amplifier Circuit** | Boosts the weak signal from the phototransistor. | Operational Amplifiers (Op-Amps). | | **Output Driver** | Switches the external load. | Bipolar transistors or solid-state relays. | | **Status LEDs** | Visual indicators for power and detection. | Red (Output) and Green (Power) LEDs. | --- ## 2. Technical Specifications These parameters define the electronic limitations and operational environment for the KADS-BE-R series. | Parameter | Specification (Typical) | | :--- | :--- | | **Supply Voltage** | 12 - 24V DC (Ripple < 10%) | | **Current Consumption** | Max 30mA - 50mA | | **Output Type** | NPN or PNP (Open Collector) | | **Response Time** | < 1ms to 5ms | | **Sensing Distance** | 0.5m up to 10m (model dependent) | | **Protection Circuit** | Reverse polarity and short-circuit protection | --- ## 3. Wiring and Connectivity Most KADS-BE-R sensors use a standard 3-wire or 4-wire color code system for electronic integration. ### Wiring Diagram Logic ```markdown 1. Brown (BN) --> Positive Power (+V) 2. Blue (BU) --> Negative Power (0V / Ground) 3. Black (BK) --> Control Output (Signal) 4. White (WH) --> Mode Selection (Light-ON / Dark-ON) ``` --- ## 4. Operational Modes The electronic logic of the sensor can be configured in two ways: * **Light-ON (L.ON):** The output is active (High) when the receiver detects the beam from the transmitter. * **Dark-ON (D.ON):** The output is active (High) when an object blocks the beam (the receiver is in the dark). --- ## 5. Circuit Protection Features Modern KADS-BE-R units include internal electronic safeguards: 1. **Reverse Polarity Protection:** Prevents damage if the Brown and Blue wires are accidentally swapped. 2. **Over-current Protection:** Shuts down the output if the load exceeds the rated capacity (e.g., >100mA). 3. **Mutual Interference Prevention:** Electronic modulation allows multiple sensors to be used in close proximity without triggering each other.