The 6FC5370-5AA40-0AA0 is a high-performance power supply unit (PSU) designed for Siemens SINUMERIK 840D/810D CNC systems. It provides stable and reliable DC power to the CNC control unit, drives, and peripherals, ensuring uninterrupted operation in precision machining applications such as milling, turning, and grinding.
Key Features
✔ High Efficiency (>90%) – Reduces energy consumption
✔ Wide Input Voltage Range – Supports global power grids
✔ Redundant Cooling System – Fan + convection cooling
✔ Overvoltage/Overcurrent Protection – Safeguards connected components
✔ Hot-Swappable (Optional) – For mission-critical applications
3. Technical Specifications
3.1 Electrical Parameters
Parameter Specification
Input Voltage 3-phase AC 380–480V (±10%), 50/60 Hz
Output Voltage 24V DC (±1%) regulated
Output Current 40A continuous (50A peak)
Power Rating 1000W (max)
Ripple Noise <100mV p-p
3.2 Protection & Monitoring
Short-Circuit Protection – Auto-recovery
Over-Temperature Shutdown – With status relay
LED Indicators – Power OK, fault, load sharing
PROFIBUS Feedback – Optional (for system integration)