Based on the technical nomenclature commonly used in industrial automation (specifically by brands like **Pizzato Elettrica**), the **L58D-R2-T** refers to a high-performance **RFID Coded Safety Sensor** or a related limit switch assembly. Below is a breakdown of the electronic parts and functional characteristics of this device. --- ### 1. Functional Specifications The L58D series typically integrates RFID technology to ensure high-level tampering protection. Unlike magnetic switches, these require a specific coded actuator to trigger. | Feature | Specification | | :--- | :--- | | **Technology** | RFID (Radio Frequency Identification) | | **Coding Level** | High (Unique or Individual coding) | | **Safety Outputs** | 2 PNP OSSD (Output Signal Switching Device) | | **Supply Voltage** | 24 VDC ± 15% | | **Housing Material** | Technopolymer (Fiberglass reinforced) | | **Protection Degree** | IP67 / IP69K | --- ### 2. Electronic Components & Internal Logic #### A. RFID Transceiver The core of the unit is an internal antenna and an RFID reader chip. * **Active Sensing:** The sensor emits a low-power radio frequency field. * **Data Validation:** It reads the unique ID of the actuator. If the ID does not match the "learned" code, the safety outputs remain off. #### B. OSSD Outputs (Output Signal Switching Device) The device uses two solid-state PNP outputs. * **Self-Monitoring:** The electronic circuit performs continuous internal tests for short-circuits between outputs or to the power supply. * **Redundancy:** Dual outputs ensure that if one transistor fails, the other can still initiate a safety stop. #### C. LED Diagnostic Indicators The L58D typically includes integrated LEDs to provide visual feedback on the electronic state: * **Green:** Power supply is OK; safety inputs are closed. * **Yellow:** Actuator detected (Gate closed). * **Red:** Fault detected (Short circuit, misalignment, or internal error). --- ### 3. Connection Pinout (Typical M12 Connector) Most "R2" variants utilize an M12 8-pole or 5-pole connector. Below is the standard electronic interface: ```yaml Pin 1: A1 (+) 24VDC Power Pin 2: IS1 Safety Input 1 Pin 3: A2 (-) 0V Ground Pin 4: OS1 Safety Output 1 (OSSD) Pin 5: O3 Auxiliary Output (Non-Safety) Pin 6: IS2 Safety Input 2 Pin 7: OS2 Safety Output 2 (OSSD) Pin 8: Reset/Programming Input ``` --- ### 4. Key Electronic Advantages 1. **Series Connection:** The electronics support "daisy-chaining" multiple sensors (up to 32 units) while maintaining **PL e / SIL 3** safety ratings. 2. **Actuator Programming:** The "-T" suffix often indicates a specific teach-in or timing function, allowing the sensor to be paired with a new actuator via a specific electronic sequence. 3. **Hysteresis Management:** The internal logic prevents "chatter" (rapid switching) if the safety gate is vibrating, ensuring stable electronic signals. ---