Brand: Yokogawa
Model: AFV30D-A41252
Internal / Assembly Reference: C402214W01
Type: Duplexed Field Control Unit (FCU)
Series: CENTUM VP / AFV30D
Core Function: Redundant Field Control and FIO Communication
Country of Origin: Japan
Condition: New / Used / Refurbished
Availability: In Stock / Industrial Spare Parts
Warranty: 12 Months
Yokogawa AFV30D-A41252 Duplexed Field Control Unit
The Yokogawa AFV30D-A41252 is a Duplexed Field Control Unit (FCU) designed for Yokogawa’s CENTUM VP distributed control system. It provides the control-system interface between the Vnet/IP control network and Fieldnetwork I/O (FIO), supporting reliable field control and I/O communication in process automation applications.
The AFV30D series is designed as a 19-inch rack-mountable field control platform. The AFV30D-A41252 configuration provides dual-redundant Vnet/IP communication and dual-redundant power supply, making it suitable for control applications where system availability and communication reliability are important.
The model is specified as a standard type for CP471 and uses a 220–240 VAC power-supply configuration. Available product documentation identifies the “5” configuration as the basic type without explosion protection and the final “2” as the applicable revision/configuration code for R6.01 or later.
Main Functions
- Duplexed field control
The AFV30D provides redundant field-control hardware for applications where continuous operation and high availability are required. - Vnet/IP communication
The unit supports dual-redundant Vnet/IP communication paths, helping maintain connectivity between the field-control layer and the CENTUM VP control system. - FIO system interface
The FCU interfaces with Yokogawa Fieldnetwork I/O through the associated ESB/optical ESB architecture and field I/O nodes. - Redundant power architecture
The AFV30D-A41252 uses a dual-redundant power-supply configuration with 220–240 VAC input. - 19-inch rack installation
The unit is designed for installation in a standard 19-inch rack, making it suitable for centralized DCS control cabinets.
Model Configuration
| Code | Configuration |
|---|---|
| AFV30D | Duplexed Field Control Unit for Vnet/IP and FIO |
| A | Standard type for CP471 |
| 4 | Dual-redundant Vnet/IP and dual-redundant power supply |
| 1 | Fixed configuration |
| 2 | 220–240 VAC power supply |
| 5 | Basic type, without explosion protection |
| 2 | Applicable configuration/revision for R6.01 or later |
The complete order number should be quoted as AFV30D-A41252 when identifying the FCU. C402214W01 may appear as an additional internal or assembly reference on the equipment and should be retained when matching the physical unit, but it should not automatically be treated as a separate replacement part.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Yokogawa |
| Model | AFV30D-A41252 |
| Internal Reference | C402214W01 |
| Product Type | Duplexed Field Control Unit |
| System | CENTUM VP |
| Communication | Vnet/IP |
| Network Configuration | Dual-redundant |
| I/O System | FIO |
| Controller Compatibility | CP471 |
| Power Supply | Dual-redundant |
| Input Power | 220–240 VAC |
| Mounting | 19-inch rack mountable |
| Protection Type | Basic type, no explosion protection |
| Applicable Revision | R6.01 or later |
| Shipping Weight | Approx. 9 kg |
Published supplier specifications consistently identify the unit as a 19-inch rack-mountable duplexed FCU with dual-redundant Vnet/IP and power supply. Shipping weight is commonly listed at approximately 9 kg.
CENTUM VP and FIO System Integration
The AFV30D is an important component in Yokogawa’s FIO architecture. In a typical configuration, the Field Control Unit communicates with FIO node equipment through an ESB, optical ESB, or related bus architecture. The node can contain power-supply, bus-interface, and I/O modules.
This architecture allows field I/O to be distributed while keeping the control functions integrated with the CENTUM VP DCS. The AFV30D’s duplex architecture provides an additional layer of availability for critical process-control applications.
Typical Applications
The Yokogawa AFV30D-A41252 can be used in process automation environments such as:
- Oil and gas processing
- Petrochemical plants
- Chemical processing
- Power generation
- Refining
- Pulp and paper
- Pharmaceutical manufacturing
- Large-scale process plants
- CENTUM VP modernization projects
- DCS maintenance and spare-parts replacement
Its redundant communication and power architecture makes the unit particularly suitable for applications where an FCU failure could result in significant process disruption.
Replacement and Procurement Considerations
When sourcing an AFV30D-A41252, the complete model number should be checked carefully. The suffix configuration determines important characteristics such as processor compatibility, Vnet/IP redundancy, power-supply configuration, and protection type.
Before purchasing a replacement unit, verify:
- Exact model: AFV30D-A41252
- Any additional equipment or assembly reference, such as C402214W01
- CENTUM VP revision
- CP471 compatibility
- Vnet/IP network configuration
- Power-supply configuration
- Existing FIO architecture
- Physical rack and connector arrangement
- Condition of the replacement unit
For an existing plant, matching the complete Yokogawa order number is preferable to selecting a visually similar AFV30D unit.
Verification & Quality Control
For industrial spare-parts procurement, each AFV30D-A41252 should be checked for:
- Yokogawa nameplate and complete model number
- C402214W01 or other identification markings
- Housing and rack-mount condition
- Connector condition
- Power-supply interface
- Vnet/IP interface condition
- Internal signs of corrosion or overheating
- PCB condition where inspection is possible
- Power-up and communication testing where applicable
- Compatibility with the customer’s installed CENTUM VP configuration
For used or surplus inventory, photographs of the actual nameplate and connectors are particularly useful because Yokogawa FCUs can have similar external appearances across different configurations.
Related Yokogawa Models
Yokogawa AFV30D – Duplexed Field Control Unit
Yokogawa AFV30D-A41252 – 220–240 VAC duplexed FCU
Yokogawa AFV40D – Duplexed Field Control Unit family
Yokogawa AFV10D – Duplexed Field Control Unit family
Yokogawa CP471 – CENTUM VP control processor
Yokogawa ANB10D – ESB Bus Node Unit
Yokogawa ANB11D – Optical ESB Bus Node Unit
Yokogawa FIO – Fieldnetwork I/O system
Related Tags
Yokogawa AFV30D-A41252
Yokogawa C402214W01
AFV30D Field Control Unit
Yokogawa Duplexed FCU
CENTUM VP
Vnet/IP
Fieldnetwork I/O
FIO System
CP471
Redundant Field Control Unit
Yokogawa DCS
Process Control System
Industrial Automation Spare Parts


