The **OBG5000-R101-2EP-IO** is a high-performance retroreflective sensor manufactured by Pepperl+Fuchs. It is part of the R101 series, which integrates standard photoelectric sensing with advanced communication protocols like IO-Link. --- ### 1. Key Electronic Specifications The following table summarizes the primary electrical characteristics of the device: | Feature | Specification | | :--- | :--- | | **Operating Voltage** | 10 ... 30 V DC | | **No-load Supply Current** | < 25 mA at 24 V supply | | **Output Type** | 2 push-pull (4-in-1) outputs, short-circuit protected | | **Switching Voltage** | max. 30 V DC | | **Switching Current** | max. 100 mA, resistive load | | **Switching Frequency** | 1000 Hz | | **Response Time** | 0.5 ms | --- ### 2. Functional Electronic Components #### A. IO-Link Interface (V1.1) The "IO" in the model name indicates IO-Link compatibility. This allows the sensor to: * **Transfer Process Data:** Real-time detection status and signal quality. * **Parameterization:** Remote configuration of sensitivity and output logic (Light-on/Dark-on). * **Diagnostics:** Monitoring of operating hours and stability alarms. #### B. Push-Pull Outputs (2EP) The sensor features "2EP" (2 Push-Pull) outputs. This electronic configuration is highly versatile: * **Universal Compatibility:** It can mimic both NPN and PNP logic. * **Active Switching:** Unlike open-collector outputs, push-pull outputs actively drive the signal to both high (V+) and low (GND) states, reducing noise susceptibility. #### C. Optical/Electronic Emitter * **Light Source:** LED. * **Light Type:** Modulated visible red light (approx. 660 nm). * **Polarization Filter:** Electronics include a polarization filter to ensure the sensor only detects light reflected by the corner-cube reflector, ignoring shiny objects that might otherwise cause false triggers. --- ### 3. Wiring and Pinout The device typically uses an M8 x 1, 4-pin connector. The electronic pin assignment is generally as follows: | Pin | Color | Function | Description | | :--- | :--- | :--- | :--- | | 1 | Brown | L+ | +10...30 V DC | | 2 | White | Q2 | Digital Output 2 | | 3 | Blue | L- | 0 V (Ground) | | 4 | Black | C/Q1 | IO-Link Communication / Digital Output 1 | --- ### 4. Adjustments and Indicators The rear of the sensor contains electronic feedback components for the user: * **Green LED:** Power on / Flashing indicates IO-Link mode. * **Yellow LED:** Switching state indicator. * **Rotary Switch:** Electronic sensitivity adjustment and functional mode selection (Light-on/Dark-on).