The **QS5.DNET** is a specific electronic component produced by **PULS Power**, categorized as a **DeviceNet power supply unit**. It is designed to interface with DeviceNet industrial networks, providing stabilized 24V DC power to the bus line. --- ### 1. Key Technical Specifications The QS5.DNET is part of the **DIMENSION Q-Series**, known for high efficiency and compact design. | Parameter | Specification | | :--- | :--- | | **Input Voltage** | AC 100-240V (Wide range) | | **Output Voltage** | DC 24V (Adjustable) | | **Output Current** | 3.8A (Continuous), 6A (Short-term reserve) | | **Power Rating** | 92W | | **Efficiency** | 92.7% | | **MTBF** | ~800,000 hours | --- ### 2. Core Electronic Components & Features The internal circuitry of the QS5.DNET is engineered for industrial-grade reliability: * **PFC (Power Factor Correction):** Active PFC circuitry ensures low harmonic distortion and high power factor, meeting international standards for energy efficiency. * **BonusPower® Technology:** The unit can deliver **150% peak power** for up to 4 seconds. This is critical for starting inductive loads or handling sudden surges in the network. * **Isolation & Protection:** * **Galvanic Isolation:** High isolation between input and output to protect sensitive logic devices. * **Overload Protection:** Features electronic current limiting and thermal shutdown. * **Output Monitoring:** Includes a "DC-OK" relay contact and an LED status indicator for real-time monitoring of the output health. --- ### 3. Role in DeviceNet Systems DeviceNet is a protocol used in automation. The QS5.DNET serves as the **Bus Power Supply**, which is unique because: 1. **Strict Regulation:** It maintains tight voltage regulation to ensure data integrity across the communication wires. 2. **Safety Compliance:** It is often **NEC Class 2** compliant, meaning the power output is limited to prevent fire hazards, which is a requirement for certain industrial installations. 3. **Low Ripple/Noise:** High-frequency filtering components ensure that electrical noise does not interfere with the digital signals on the bus. --- ### 4. Physical Interface * **Input Terminals:** Spring-clamp terminals for L, N, and PE (Ground). * **Output Terminals:** Dual terminals for + and - to simplify wiring of the DeviceNet trunk line. * **Mounting:** Standard DIN-rail mount (35mm).