Siemens 6FC5373-0AA30-0AA1 SINUMERIK 840D sl NCU 730.3 PN
ManufacturerSiemensModel6FC5373-0AA30-0AA1Product TypeSINUMERIK 840D sl NCU 730.3 PN numerical control unit
01Key Information
Siemens 6FC5373-0AA30-0AA1 is a SINUMERIK 840D sl NCU 730.3 PN that combines CNC, PLC and communications functions in one control unit. The official configuration identifies a PLC 317-3 PN/DP, 3 MB of CNC user memory and 512 KB of PLC user memory. Because the unit belongs to a defined SINUMERIK hardware and software generation, replacement work must preserve the complete machine archive, option set, memory media and network configuration.
Selection ControlVerify the complete article number, hardware revision, software, interfaces, installed options and system architecture before ordering.
02Functions
Core Functions
- Executes SINUMERIK 840D sl CNC functions and coordinates the machine control sequence.
- Integrates a PLC 317-3 PN/DP for machine logic and distributed automation tasks.
- Provides 3 MB of CNC user memory and 512 KB of PLC user memory.
- Uses 1 GB of DRAM and 1 MB of nonvolatile memory for the documented hardware generation.
- Supports the engineered PROFINET and PROFIBUS architecture of the installed machine.
- Uses internal heat dissipation and requires the specified control-cabinet environment.
Product Identity
- Manufacturer: Siemens
- Model: 6FC5373-0AA30-0AA1
- Product Type: SINUMERIK 840D sl NCU 730.3 PN numerical control unit
- Status: Cancelled since October 1, 2017; spare-part planning required
03Specifications
| Manufacturer | Siemens |
|---|---|
| Article Number | 6FC5373-0AA30-0AA1 |
| Product Designation | SINUMERIK 840D sl NCU 730.3 PN |
| Integrated PLC | PLC 317-3 PN/DP |
| CNC User Memory | 3 MB |
| PLC User Memory | 512 KB |
| DRAM | 1 GB |
| Nonvolatile Memory | 1 MB |
| Maximum Active Power | 374 W |
| Cooling Method | Internal heat dissipation |
| Degree of Protection | IP20 / UL open type; IPXXB with option-slot cover |
| Operating Temperature | 0 to 55 degrees C |
| Transport Temperature | -40 to 70 degrees C |
| Storage Temperature | -25 to 55 degrees C |
| Relative Humidity | 5 to 95 percent |
04Installation
- Confirm the complete article number, hardware revision and SINUMERIK software release before removal.
- Create and verify a complete CNC, PLC, drive and machine-data archive before the outage.
- Record PROFINET names, IP settings, PROFIBUS addresses, topology, licenses and option assignments.
- Inspect the cabinet cooling path and preserve the documented internal heat-dissipation clearances.
- Transfer memory media or licensed options only under the documented SINUMERIK service procedure.
- After installation, validate CNC axes, PLC I/O, safety functions, drives, networks, operator components and the complete machine cycle.
05Lifecycle
- The exact article was cancelled on October 1, 2017 and should be handled through controlled spare-part or migration planning.
- Siemens identifies 6FC5373-0AA30-0AB0 as the successor article for this NCU generation.
- The successor is not an unconditional drop-in replacement; the CNC software baseline, PLC project, licenses, options and machine archive must be checked.
- Retain the original commissioning archive and hardware identification for any repair or replacement.
- Plan the lifecycle decision around the complete SINUMERIK system rather than the NCU article alone.
