Title: Siemens Sinumerik 840D sl NCU 720.3B PN Numerical Control Unit (6FC5247-0AF12-1AA0)

Product Overview:
The Siemens Sinumerik 840D sl NCU 720.3B PN (Numerical Control Unit) with part number 6FC5247-0AF12-1AA0 is a high-performance, integrated control component designed for advanced machine tool automation. As a central processing unit for the Sinumerik 840D sl system, it seamlessly combines Numerical Control (NC), Programmable Logic Controller (PLC) based on SIMATIC S7-300, and communication functions into a single, compact module. This powerful NCU is engineered to deliver unparalleled precision, speed, and reliability for complex machining tasks across a wide range of industries. Its integrated PROFINET interface ensures efficient and real-time data exchange, making it an ideal solution for modern, interconnected production environments requiring robust motion control and sophisticated automation capabilities. The 6FC5247-0AF12-1AA0 is a cornerstone for achieving high productivity and consistent quality in demanding manufacturing applications.

Key Features & Benefits:

High-performance Numerical Control Unit (NCU) for the Siemens Sinumerik 840D sl system, ensuring superior machine tool control.
Integrated PLC functionality based on SIMATIC S7-300 CPU 317-3 PN/DP, simplifying system architecture and programming.
Advanced motion control capabilities supporting up to 31 axes/spindles, enabling complex multi-axis machining operations.
Built-in PROFINET interface for high-speed, real-time communication with drives, I/O, and other automation components.
Robust industrial design engineered for reliable operation in harsh manufacturing environments, ensuring long-term durability.
Enhanced diagnostic functions and maintenance features to minimize downtime and streamline troubleshooting.
Scalable and flexible architecture allows for easy integration and adaptation to various machine configurations and requirements.
Optimized for high-precision machining, contributing to superior surface quality and dimensional accuracy of workpieces.
Reduces wiring complexity and installation time due to its integrated design, leading to cost savings.
Future-proof technology with continuous software updates and compatibility within the Siemens automation ecosystem.

Applications:

The Siemens Sinumerik 840D sl NCU 720.3B PN is widely utilized in high-end machine tool applications requiring precision, speed, and complex motion control.
CNC Milling Machines (3-axis, 5-axis, and multi-axis)
CNC Turning Machines (lathes, turn-mill centers)
Grinding Machines (cylindrical, surface, tool grinding)
Laser Cutting and Welding Systems
Additive Manufacturing (3D printing) machines
Automated Production Lines and Transfer Machines
Robotics Integration in Machining Cells
High-precision manufacturing in industries such as Automotive, Aerospace, Medical Devices, Tool & Die, and General Machining.

Technical Specifications:

Part Number: 6FC5247-0AF12-1AA0
Part Number (no special characters): 6FC52470AF121AA0
Product Type: Numerical Control Unit (NCU)
Series: Sinumerik 840D sl
Model: NCU 720.3B PN
Integrated PLC: Yes (SIMATIC S7-300 CPU 317-3 PN/DP equivalent)
Communication Interface: PROFINET (RT/IRT capable)
Supported Axes/Spindles: Up to 31 (depending on configuration)
Memory: Integrated system memory for NC, PLC, and HMI data
Processor: High-performance multi-core processor for demanding control tasks
Operating Voltage: 24 V DC (typical)
Protection Class: IP20
Operating Temperature: 0 to 55 °C (32 to 131 °F)
Storage Temperature: -20 to 70 °C (-4 to 158 °F)
Dimensions (H x W x D): Approximately 245 mm x 120 mm x 190 mm (9.65 in x 4.72 in x 7.48 in)
Weight: Approximately 2.5 kg (5.5 lbs)
Mounting: Booksize format for cabinet installation
Certification: CE, UL, cULus (where applicable)