The **FSP-23-R** (commonly referred to as the FSP-2 series) is a high-performance, passive infrared (PIR) occupancy sensor typically used in high-bay lighting applications. It is designed to provide multi-level control based on motion and daylight contribution. --- ### Core Electronic Components and Specifications The device integrates several electronic sub-systems to manage power and environmental sensing. | Component | Description | Specification/Function | | :--- | :--- | :--- | | **PIR Sensor** | Fresnel lens coupled with a pyroelectric detector | Detects infrared energy changes (motion). | | **Photosensor** | Integrated light-level sensor | Measures ambient light for "daylight harvesting." | | **Microcontroller** | Internal Logic Unit | Processes timing, sensitivity, and dimming curves. | | **Dimming Interface** | 0-10V DC Control lines | Connects to LED drivers or electronic ballasts. | | **Relay** | Internal Electromechanical Switch | Switches the primary AC load ON/OFF. | --- ### Functional Electronic Features #### 1. Power Supply and Voltage Handling The FSP-23-R is designed to operate across a wide range of industrial voltages. * **Operating Voltage:** 100–347VAC (single phase). * **Frequency:** 50/60Hz. * **Load Ratings:** * @ 120V: 0-800W Tungsten/Ballast/LED. * @ 277V: 0-1200W Ballast/LED. * @ 347V: 0-1500W Ballast/LED. #### 2. Dimming Control (0-10V) The sensor acts as a current sink for the 0-10V dimming signal provided by the LED driver. * **Low Mode:** 0V to 9.8V (customizable). * **High Mode:** 10V (full brightness). * **Fade Times:** Electronically controlled ramp-up and ramp-down to prevent sudden light flashes. #### 3. Communication Interface Unlike traditional sensors with physical dials, the FSP-23-R uses an **Infrared (IR) Transceiver**. * **Programming:** Settings are adjusted via the **FSIR-100** wireless handheld tool. * **Storage:** Parameters are stored in non-volatile memory (EEPROM), meaning settings are retained during a power outage. --- ### Wiring Color Codes To integrate the FSP-23-R into a circuit, the following lead wires are used: ```yaml Power_Wires: Line: Black Load: Red Neutral: White Control_Wires: Dim_Positive: Violet (+10VDC) Dim_Negative: Gray/Pink (Common) ``` --- ### Detection Performance The electronic sensitivity is categorized by the lens installed: * **FSP-L2:** 360° coverage at 8ft height (approx. 48ft diameter). * **FSP-L3:** 360° coverage at 20ft height (approx. 40ft diameter). * **FSP-L7:** 360° coverage at 40ft height (approx. 100ft diameter).