Siemens 6FC5357-0BB23-0AE0 SINUMERIK 840D/DE NCU 572.3E CNC Unit
Manufacturer: Siemens
-
Part Number: 6FC5357-0BB23-0AE0
Condition：New with Original Package
Product Type: SINUMERIK 840D/DE Control Unit
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Description
The Siemens 6FC5357-0BB23-0AE0 is a compact Numerical Control Unit (NCU 572.3E) engineered for the SINUMERIK 840D/DE CNC platform. This control unit integrates motion control, PLC functionality, and industrial communication interfaces into a single module, delivering precise, deterministic performance for multi-axis machining applications.
Powered by an Intel Celeron M 600 MHz processor, the unit offers high-speed execution of control commands and smooth coordination of complex motion sequences. It features 3 MB NC memory for motion programs, 128 MB DRAM, and 8 MB SRAM, ensuring reliable system operation. The embedded S7-300 PLC (317-2 DP) with 128 KB memory provides automation logic for integrated machine control. PROFIBUS DP preparation allows seamless connectivity to industrial networks, and the unit meets IEC 61508 functional safety standards for secure and dependable operation.
Although discontinued by Siemens in 2015, the 6FC5357-0BB23-0AE0 remains suitable for maintaining legacy CNC systems. For new installations, Siemens recommends upgrading to NCU 573.5B or NCU 720.3B PN units, while spare parts and repair services are still available for older machines.
Technical Specifications
| Parameter | Details |
|---|---|
| Model Number | 6FC5357-0BB23-0AE0 |
| Product Name | SINUMERIK 840D/DE NCU 572.3E |
| Processor | Intel Celeron M, 600 MHz |
| NC Memory | 3 MB |
| DRAM | 128 MB |
| SRAM | 8 MB |
| Integrated PLC | S7-300 PLC 317-2 DP, 128 KB |
| Communication Interfaces | PROFIBUS DP (prepared) |
| Compliance | IEC 61508 functional safety |
| Lifecycle | Discontinued 2015 |
| Application | CNC machine tools, multi-axis automation, robotics |
| Weight | 1.55 lbs |
Key Features
-
Deterministic CNC control for multi-axis SINUMERIK 840D/DE operations.
-
Integrated S7-300 PLC 317-2 DP for seamless automation logic.
-
Dedicated 3 MB NC memory for precise motion program execution.
-
PROFIBUS DP preparation for networked machine control.
-
Compact module design for easy integration into existing CNC systems.
-
Complies with IEC 61508 safety standards for reliable operation.
-
Legacy unit suitable for maintenance or upgrade of older CNC systems.
Considerations
-
Lifecycle: Discontinued in 2015; newer NCUs such as 573.5B or 720.3B PN are recommended for modern projects.
-
Compatibility: Designed specifically for the SINUMERIK 840D/DE platform; not compatible with other CNC systems.
-
Maintenance: Spare parts and servicing available, but modernization advised for long-term reliability.