Siemens 6FC5372-0AA30-0AA1 SINUMERIK 840D sl NCU 720.3 PN CNC Control
ManufacturerSiemensModel6FC5372-0AA30-0AA1Product TypeSINUMERIK 840D sl NCU 720.3 PN with PLC 317-3PN/DP
01Product Profile
Siemens 6FC5372-0AA30-0AA1 is a SINUMERIK 840D sl NCU 720.3 PN CNC control with integrated PLC 317-3PN/DP. It provides 3 MB of CNC user memory and 512 KB of PLC user memory and uses internal heat dissipation. The control has 1 GB DRAM and 1 MB nonvolatile memory, an IP20 open-type enclosure rating and a 0 to 55 degrees C operating range. Siemens identifies 6FC5372-0AA30-0AB0 as its successor.
Compatibility GateMatch the full article, NCU generation, PLC type, memory, software, field networks, cooling and machine archive before service exchange.
02Technical Data
| Manufacturer | Siemens |
|---|---|
| Article Number | 6FC5372-0AA30-0AA1 |
| Product Family | SINUMERIK 840D sl |
| Product Designation | NCU 720.3 PN |
| Integrated PLC | PLC 317-3PN/DP |
| CNC User Memory | 3 MB |
| PLC User Memory | 512 KB |
| Working Memory | 1 GB DRAM |
| Nonvolatile Memory | 1 MB |
| Maximum Active Power | 374 W |
| Degree of Protection | IP20 / UL open type |
| 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 |
| Lifecycle Status | Cancelled since October 2017; spare part |
| Successor | 6FC5372-0AA30-0AB0 |
03System Role
Control Function
- Executes SINUMERIK 840D sl CNC functions and integrated PLC 317-3PN/DP logic.
- Coordinates the configured drive system, field I/O, operator components and machine communications.
- Provides the PN/DP automation role defined for the NCU 720.3 generation.
- Maintains CNC and PLC memory areas required by the installed machine project.
- Serves as a spare-part control core while the machine remains on the cancelled NCU 720.3 PN platform.
Key Capabilities
- NCU 720.3 PN combines CNC processing and a PLC 317-3PN/DP in the 840D sl architecture.
- Three megabytes of CNC user memory and 512 KB of PLC user memory support the installed automation project.
- One gigabyte of DRAM and one megabyte of nonvolatile memory are specified for the exact article.
- The 50 mm-wide format uses internal heat dissipation and an IP20 open-type installation concept.
- The documented operating range is 0 to 55 degrees C with 5 to 95 percent relative humidity.
- Siemens identifies the NCU 720.3B PN article 6FC5372-0AA30-0AB0 as successor.
04Compatibility
- Match the complete 6FC5372-0AA30-0AA1 article and NCU 720.3 PN designation.
- Confirm CNC software, CompactFlash card, licenses, PLC project, machine archive and drive data.
- Verify PROFINET device names and IP configuration plus PROFIBUS addresses, network settings and termination.
- Maintain the documented internal-cooling arrangement, cabinet airflow and 0 to 55 degrees C operating limit.
- The named successor 6FC5372-0AA30-0AB0 has different memory, power and fan-module data; migration must be engineered.
- After any exchange, follow the machine builder commissioning and safety-validation procedure.
05Applications
- Spare-part replacement in compatible SINUMERIK 840D sl NCU 720.3 PN systems.
- CNC machines using integrated PLC 317-3PN/DP communication.
- Restoration of a cancelled NCU platform when the approved software and machine archive are available.
- PROFINET and PROFIBUS machine architectures configured for the exact article.
- Lifecycle stocking and planned migration to the officially named successor.
- Service work requiring preservation of CNC, PLC, drive, HMI and safety configuration.
06FAQ
What is Siemens 6FC5372-0AA30-0AA1?
It is a SINUMERIK 840D sl NCU 720.3 PN CNC control with an integrated PLC 317-3PN/DP.
How much CNC and PLC user memory is provided?
The article provides 3 MB of CNC user memory and 512 KB of PLC user memory.
What working memory is specified?
Siemens specifies 1 GB DRAM and 1 MB nonvolatile memory.
What is the operating temperature range?
The official technical data specifies 0 to 55 degrees C.
What successor does Siemens identify?
Siemens identifies 6FC5372-0AA30-0AB0, NCU 720.3B PN, as the successor.
Can the successor be fitted without engineering changes?
No automatic drop-in replacement is assumed; memory, power, cooling, software, network and machine-project compatibility must be reviewed and validated.
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