The Siemens 6FC5311-0AA00-1AA0 is a Sinumerik 840D sl control unit used in CNC (Computer Numerical Control) systems, primarily for machine tools and automation applications. It is part of Siemens' Sinumerik 840D series, designed for high-performance control of complex machinery. This control unit provides advanced capabilities for precise control, automation, and optimization of machining processes in industries such as automotive, aerospace, metalworking, and electronics manufacturing.
Key Features
✔ High-performance RISC processor for complex machining operations
✔ Integrated PLC (SIMATIC S7-300 functionality)
✔ 5-axis interpolation capability
✔ Advanced surface machining functions
✔ PROFIBUS-DP/MPI communication interfaces
✔ Safe Torque Off (STO) safety function
3. Technical Specifications
3.1 System Performance
Parameter Specification
Processor Speed 400 MHz
Work Memory 4 MB (expandable)
Program Memory 512 KB non-volatile
NC Cycle Time ≤1 ms
PLC Cycle Time ≤2 ms
Maximum Axes 31 (including spindles)
3.2 Motion Control
Interface Type Specification
PROFIBUS-DP 2 ports (12 Mbps)
MPI 1 port (187.5 Kbps)
Digital I/O 1024 max (via expansion)
Analog I/O 64 max (via expansion)
3.4 Power Requirements
Parameter Specification
Input Voltage 24V DC (±15%)
Power Consumption 50W (typical)
Backup Power Supercap (72 hours)
3.5 Physical Specifications
Parameter Specification
Dimensions (W×H×D) 290 × 220 × 50 mm
Weight 2.5 kg
Mounting 19" rack or panel
Cooling Forced air
Protection Class IP20
4. Software Features
SINUMERIK Operate interface