The **M8YV-Z55-R/BL** is a specific technical configuration for an industrial-grade **LED signal light (tower light)**, typically manufactured by companies like **Menics**. These components are modular signaling devices used on machinery to indicate operational status. --- ### 1. Part Number Breakdown Based on standard industrial nomenclature for this series, the model breaks down as follows: | Code Segment | Description | Specific Detail | | :--- | :--- | :--- | | **M8YV** | Base Model Series | 80mm Diameter, Pole or Surface Mount, Lead-wire connection. | | **Z** | Function Type | Usually denotes a **Buzzer** or Flashing function included. | | **5** | Number of Tiers | Indicates this is a **5-stack** LED tower. | | **5** | Voltage Code | Typically **24V AC/DC** (Standard for PLCs). | | **R/BL** | Color Sequence | Red (Top), Amber, Green, Blue, White (Bottom order variant). | --- ### 2. Key Electronic Specifications These parts are designed to interface directly with industrial controllers (PLCs). * **Operating Voltage:** 24V AC/DC (Standard). * **Current Consumption:** * LED Unit: ~30mA per color. * Buzzer: ~50mA. * **Light Source:** High-intensity SMD LEDs for vibration resistance and longevity (up to 50,000 hours). * **Internal Circuitry:** Includes bridge rectifiers (allowing for non-polar AC/DC input) and current-limiting resistors for each LED bank. * **Wiring Type:** UL1007 AWG22 wires (Color-coded to match the lens tiers). --- ### 3. Functional Components #### A. The LED Modules The stack uses a modular PCB design inside each colored lens. The LEDs are arranged in a circular pattern to ensure 360-degree visibility. #### B. The Buzzer (Z Unit) Located in the base or top cap, the "Z" designation indicates a piezo-electric transducer. * **Sound Level:** Usually 80-90dB at 1 meter. * **Circuitry:** Often includes a transistor-driven oscillator to produce either a continuous or intermittent beep. #### C. Control Interface The unit uses a **Common Anode or Common Cathode** wiring scheme: * **External Trigger:** NPN or PNP open collector transistors from a PLC can trigger individual colors or the buzzer by completing the circuit to ground or V+. --- ### 4. Wiring Diagram Logic Each wire color typically corresponds to the lens color it controls: | Wire Color | Function | | :--- | :--- | | **Red** | Red LED Tier | | **Yellow/Amber** | Amber LED Tier | | **Green** | Green LED Tier | | **Blue** | Blue LED Tier | | **White** | White LED Tier | | **Gray/Black** | Buzzer (If applicable) | | **Yellow/White** | Common Line | ---