AFS10D-H4121 CENTUM VP Duplexed Field Control Unit | Yokogawa

Product Overview

The Yokogawa AFS10D-H4121 functions as the high-availability core of the CENTUM VP control system. This Duplexed Field Control Unit (FCU) manages real-time process control logic while maintaining seamless synchronization between redundant processor modules. Designed for 19-inch rack mounting, the AFS10D-H4121 provides the necessary computational power and expanded I/O capabilities for V net and RIO communication architectures. We offer this unit as 100% Brand New and Original to ensure maximum plant uptime and safety compliance.

Part Number Breakdown

The AFS10D-H4121 follows Yokogawa's modular configuration logic. The specific suffix codes represent the hardware internal specifications and power ratings:

Technical Specifications

The AFS10D-H4121 utilizes robust components to handle high-demand industrial processing.

• Configuration: Duplexed (Redundant) Field Control Unit.

• Mounting Type: Standard 19-inch rack-mountable chassis.

• Input Voltage Options: Supports 100-120 V AC, 220-240 V AC, or 24 V DC.

• Max Power Consumption: 410 VA (at 220-240 V AC range).

• Built-in Breaker: Integrated 8A/250V fuse for overcurrent protection.

• Network Interface: Supports V net/IP and Remote I/O (RIO) functional expansion.

• Condition: Guaranteed 100% Brand New, original factory seal.

Engineering Advantages

The AFS10D-H4121 addresses critical reliability challenges in modern process plants:

• Fault-Tolerant Operation: The duplexed architecture prevents system-wide shutdowns. If one processor module fails, the secondary module assumes control in microseconds without bumping the process, ensuring zero downtime for critical loops.

• High-Density Integration: The 19-inch rack-mount design allows engineers to maximize cabinet space. It integrates seamlessly into existing CENTUM infrastructures, facilitating easier retrofits and system expansions.

• Versatile Power Management: The wide input voltage range (100V AC to 24V DC) allows the unit to operate across diverse global electrical standards and battery-backed DC systems, simplifying inventory for international projects.

• Enhanced RIO Performance: As a "function expanded type," this module optimizes data throughput between the field control station and remote I/O nodes, reducing signal latency in distributed architectures.

FAQs

• Is this unit compatible with older CENTUM CS 3000 systems?

  The AFS10D-H4121 primarily targets CENTUM VP environments. While it shares architectural similarities with older series, you must verify your specific V net/IP firmware compatibility to ensure seamless bus integration.

• What protection does the built-in breaker provide?

  The unit includes a factory-installed 8A/250V fuse. This protects the internal logic boards from external surges and short circuits, preventing costly damage to the CPU modules during electrical faults.

• How does the duplexing mechanism handle data synchronization?

  The AFS10D-H4121 utilizes a dedicated high-speed bus to mirror data between the two processor modules. This ensures that both units possess identical process data, allowing for a "bumpless" transfer if the active unit requires maintenance.

• Does this product ship in its original Yokogawa packaging?

  Yes. We supply only 100% brand new units in original factory boxes, complete with all original documentation and serial numbers for verification.