### Overview of the FSP-2E-R The **FSP-2E-R** is a specific model of an **Enhanced Passive Infrared (PIR) Occupancy Sensor**, typically manufactured by Wattstopper (Legrand). It is designed for mounting inside lighting fixtures (such as LED High Bays) to provide automated dimming and switching based on motion and ambient light levels. --- ### Key Electronic Components & Specifications The device operates using several integrated electronic systems to manage power, sensing, and communication. | Component | Description | Specifications | | :--- | :--- | :--- | | **PIR Sensor** | A dual-element pyroelectric sensor that detects heat signatures. | Detects motion via infrared wavelength changes. | | **Photocell** | An integrated light-level sensor for daylight harvesting. | Range: 1 to 250 footcandles (fc). | | **Microcontroller** | An onboard digital processor for logic control. | Handles delays, dimming curves, and IR commands. | | **Output Control** | 0-10VDC dimming ballast/driver control. | Sinks up to 100mA. | | **IR Transceiver** | Infrared communication port. | Allows wireless configuration via remote (FSIR-100). | --- ### Detailed Technical Breakdown #### 1. Power Supply and Voltage The "2E" in the model name indicates the voltage rating for the European/International or specific North American industrial markets. * **Operating Voltage:** 100–340VAC (Single Phase) or 230–480VAC (Phase-to-Phase). * **Frequency:** 50/60Hz. #### 2. Dimming Interface (0-10V) The FSP-2E-R does not just turn lights "On" or "Off"; it uses a **0-10V analog signal** to communicate with LED drivers. * **High Mode:** When motion is detected, it sends a signal (typically 10V) for full brightness. * **Low Mode:** When no motion is detected, it drops to a user-defined level (e.g., 1V or 10%). * **Off Mode:** It can completely cut power via an internal electromechanical relay. #### 3. Environmental Resistance The **-R** suffix often denotes a design intended for **Cold Storage** or rugged environments. * **Operating Temp:** -40°F to +167°F (-40°C to +75°C). * **IP Rating:** Typically IP66 rated when installed correctly, protecting electronic circuits from dust and water jets. --- ### Wiring Configuration The unit typically uses a multi-conductor wiring harness to interface with the luminaire: ```text Wire Color | Function ------------|------------------------------------ Black | Line Input (Hot) White | Neutral / Common Red | Load Output (to Driver) Violet (+) | 0-10V Dimming Control (+) Gray/Pink(-)| 0-10V Dimming Control (-) ``` --- ### Electronic Features via Programming The electronics are programmable using the **FSIR-100 Wireless IR Handheld Tool**, allowing users to modify: * **High/Low Mode:** 0V to 10V. * **Time Delay:** 30 seconds to 30 minutes. * **Cut Off:** Disabling power entirely after a period of inactivity. * **Sensitivity:** Adjusting the PIR detection threshold to avoid false triggers.