Description
The HIMA F7126 is a high-reliability power supply module engineered specifically for safety-related automation systems, such as the HIMA H51q / HIQuad safety instrumented systems. Acting as a robust DC/DC converter, it transforms a primary 24V DC input into a stable 5V DC output with safe galvanic isolation between the input and output circuits. It features integrated overvoltage protection and current limiting to protect critical safety logic controllers.
📊 Product Parameters
- 📏 Form Factor / Space Requirement: 8 TE (Standard Eurocard modular width)
- ⚖️ Weight: Approx. 0.2 kg – 0.45 kg (depending on packaging/hardware variant)
- 🌍 Country of Origin: Germany
- ⚡ Nominal Power Output: 50 W (5V DC at 10 A)
- 🔌 Input Voltage Range: 24V DC (-15% to +20%), ripple < 15%
- 🔋 Output Voltage: 5V DC (steplessly adjustable between ±0.5V; factory set to 5.4V DC)
- 🔄 Current Limitation: Approx. 13 A
- 🛡️ Overvoltage Protection: Set to 6.5V (±0.5V)
- ⚡ Primary Fuse: 6.3 A slow-blow (träge)
- 📈 Efficiency Rate: Greater than or equal to 77%
🛠️ Product Instructions
- ⚡ Safety Disconnection: Always ensure the main system rack power is turned off before inserting or extracting the F7126 module to prevent arcing or component stress.
- 🔧 Redundant Configuration Tuning: When operating multiple F7126 modules in a redundant setup to prevent load imbalances, ensure the voltage difference between module outputs is measured precisely and does not exceed 0.025V.
- 🔌 Fine Adjustment Protocol: Use the front-plate potentiometer alongside a high-accuracy digital multimeter via the integrated test socket only when precise calibration of the output voltage is necessary.
- ✅ Rack Seating: Slide the module evenly along the guide rails of the HIMA system rack and tighten the top and bottom securing screws to guarantee proper backplane connection and grounding.
❓ FAQ & Q&A
- 💬 Q1: Why are there a test socket and potentiometer on the front plate?
- 👉 A1: They allow technicians to monitor and fine-tune the 5V DC output voltage locally using an accurate external multimeter. This is especially important during redundant setup balancing.
- 💬 Q2: Can the F7126 handle output short circuits safely?
- 👉 A2: Yes, the module includes built-in short-circuit proofing, current limitation (~13 A), and overvoltage protection to safeguard the connected safety system against power anomalies.
