Description
Key Technical Specifications
| Parameter | Identification |
|---|---|
| Manufacturer | OKUMA |
| Model | FCP-DN |
| Part number | A911-2834 |
| PCB assembly number | E4809-770-140-C, reported in secondary listings |
| Additional number | 1911-2834, reported in parts listings |
| Product category | CNC control PCB |
| Control platform | Exact OPUS / CNC generation not confirmed |
| Processor | Not confirmed |
| Supply voltage | Not confirmed |
| Communication interfaces | Not confirmed |
| Input/output channels | Not confirmed |
| Firmware revision | Not confirmed |
| Operating temperature | Not confirmed |
| Mounting method | Machine-specific installation; exact details not confirmed |
The E4809-770-140-C and 1911-2834 associations are supported by parts listings, not an available OEM technical drawing.
Product Introduction
The OKUMA FCP-DN A911-2834 is an electronic control board intended for use in an OKUMA CNC machine-control assembly. Its identification is supported by multiple component listings that associate the FCP-DN designation with the A911-2834 part number. The additional assembly reference E4809-770-140-C and board number 1911-2834 provide useful identification points when checking replacement stock.
This board should be evaluated as a machine-specific CNC electronic assembly rather than a generic PLC communication module. Its exact signal-processing role, connector assignments, firmware requirements, and supported CNC models have not been established from an OEM manual. Procurement should therefore rely on the complete board markings and the original machine’s parts documentation, rather than a seller’s broad description of its function.
FCP-DN A911-2834
Application Scenarios and Field Pitfalls
Potential application areas
- OKUMA CNC machine control assemblies.
- Maintenance and restoration of legacy CNC electronics.
- Replacement of an existing FCP-DN board with a verified matching assembly.
- CNC control-board repair and fault isolation.
Important engineering checks
- Verify all identification numbers. Compare A911-2834, E4809-770-140-C, and 1911-2834 against the installed board. Do not rely on only one marking.
- Check PCB revision. Compare revision letters, component layout, connector positions, and firmware labels.
- Confirm machine compatibility. Obtain the CNC machine model, control generation, and original board location before approving installation.
- Inspect connector condition. Check for oxidized contacts, damaged pins, cracked solder joints, and previous repair work.
- Require functional test evidence. A visual inspection alone cannot establish correct CNC operation.
Related Products and Identification Differences
| Model / Number | Relationship |
|---|---|
| A911-2833 | Related FCP-DN board reference; compatibility not established |
| A911-2836 | Related FCP-DN board reference; compatibility not established |
| E4809-770-140-C | Assembly number reported in listings associated with the FCP-DN family |
| 1911-2834 | Additional board identification number reported for this assembly |
The A911-2833 and A911-2836 references appear in listings for the same general FCP-DN board family. That is not sufficient evidence that they are drop-in replacements for A911-2834.
Procurement and Quality Control
Before ordering the OKUMA FCP-DN A911-2834, request:
- Front and rear PCB photographs.
- Close-up photographs of every barcode and identification label.
- Confirmation of the E4809-770-140-C and 1911-2834 markings, if present.
- PCB revision and firmware identification.
- Confirmation of new, unused, repaired, or refurbished condition.
- Test report showing the board was powered and tested in a compatible CNC system.
Replacement recommendation: Do not approve A911-2833 or A911-2836 as substitutes based solely on the shared FCP-DN designation. The safest procurement reference is the complete marking together with matching PCB assembly and revision details.
