• Yokogawa AFV30D-S41251 Duplexed Field Control Unit
  • Yokogawa AFV30D-S41251 Duplexed Field Control Unit
  • Yokogawa AFV30D-S41251 Duplexed Field Control Unit
  • Yokogawa AFV30D-S41251 Duplexed Field Control Unit
Yokogawa AFV30D-S41251 Duplexed Field Control Unit Product Introduction The AFV30D-S41251 is a duplexed Field Control Unit (FCU) optimized for Yokogawa’s CENTUM® VP distributed control system. It integr……
Yokogawa AFV30D-S41251 Duplexed Field Control Unit
  • Yokogawa
  • AFV30D-S41251
  • Duplexed Field Control Unit
  • Japan
  • 207 × 265.9 x 482.6 mm
  • 8kg
  • Xiamen, China
  • New & In Stock
  • T/T, PayPal, Western Union
  • 1 Year
  • 1-3 Working Days
  • DHL, UPS, TNT, FedEx and EMS.
  • 24-Hour Service
  • COO
  • 27

Our advantage

Yokogawa AFV30D-S41251 Duplexed Field Control Unit

Global Logistics

We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.

Yokogawa AFV30D-S41251 Duplexed Field Control Unit

Brand new and original

Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.

Yokogawa AFV30D-S41251 Duplexed Field Control Unit

24-hour service

We provide 7*24 hours service to our customers. We will be there whenever you need us.

Yokogawa AFV30D-S41251 Duplexed Field Control Unit

Price advantage

All our products are priced very favorably because we have our own warehouse and supply.


Company Information
E-mail sales@xm-automation.com
Mobile +8613620394314
Whatsapp +8613620394314
WeChat 13620394314

Yokogawa AFV30D-S41251 Duplexed Field Control Unit

Product Introduction

The AFV30D-S41251 is a duplexed Field Control Unit (FCU) optimized for Yokogawa’s CENTUM® VP distributed control system. It integrates dual-redundant CPUs, power modules, and network interfaces to provide fail-safe operation under the most demanding industrial conditions. Featuring the LFS1550 control function, this unit executes complex logic sequences and manages up to 32 field I/O nodes with deterministic precision. Its rugged 19-inch rack‐mount chassis includes vibration‐resistant fixtures and front‐panel status indicators for reliable performance and easy maintenance.

Key Applications

Continuous process regulation of distillation columns, reactors, and separators in petrochemical and chemical processing plants.

High-speed control of turbines, boilers, and balance-of-plant systems in thermal and combined-cycle power stations.

Pump sequencing, valve interlocks, and chemical dosing in municipal and industrial water/wastewater treatment facilities.

Motion control and safety interlocking in pulp, paper, and fiber production lines.

Batch recipe execution and data logging in pharmaceutical, biotech, and specialty chemical manufacturing.

Brand Overview

Yokogawa is a world-leading provider of industrial automation and control solutions, established in 1915. Renowned for its CENTUM® DCS platforms, Yokogawa combines cutting-edge technology, rigorous quality standards, and lifecycle support to ensure maximum uptime and regulatory compliance for critical processes worldwide.

Product Advantages

  • Uninterrupted Operation: Fully redundant CPUs, power supplies, and Vnet/IP ports with automatic switchover eliminate single points of failure.

  • Modular Scalability: LFS1550 controller supports up to 32 field I/O nodes, enabling flexible expansion as your process evolves.

  • Space-Saving Design: 4U rack height and 482.6 mm depth optimize valuable control room real estate.

  • High-Speed Networking: Dual-redundant Vnet/IP interfaces deliver low-latency communication and seamless integration with upstream and downstream systems.

  • Simplified Maintenance: Front-panel LEDs, SNMP traps, and two dry-contact alarm outputs enable proactive diagnostics and rapid fault isolation.

Detailed Technical Parameters

Specification Details
Model Number AFV30D-S41251
Control Function LFS1550 (Field Control Station)
Processor VR5432 @ 133 MHz
Main Memory 64 MB
Power Supply Dual-redundant 24 V DC
Communications Dual-redundant Vnet/IP, FIO interface
Status Contact Outputs 2 points (NC, C); 30 V DC @ 0.3 A
Operating Temperature 0 °C to 55 °C
Storage Temperature –20 °C to 70 °C
Relative Humidity 10 % to 90 % RH (non-condensing)
Dimensions (H × W × D) 207 × 265.9 × 482.6 mm
Weight 8 kg
Rack Mounting 19-inch rack, 4 U; includes 8 × M5 screws

Related Models (Same Series / Function)

Model Description
AFV30S-S41251 Single FCU with LFS1550, dual Vnet/IP & FIO, 19″ rack-mount
AFV30D-S41271 Duplexed FCU variant with enhanced thermal shielding
AFV40D-S41262 Higher-capacity duplexed FCU with LFS1570 and expanded I/O slots
AFV20D-S41251 Mid-range duplexed FCU with LFS1550 for smaller node requirements
AFV10D-S41401 Entry-level duplexed FCU with LFS1500 for compact installations

Popular Yokogawa FCU Models (Same Brand)

Model Key Features
A2FV50S Single FCU, Vnet/IP & N-IO/FIO, rack-mount
A2FV50D Duplexed FCU, Vnet/IP & N-IO/FIO, rack-mount
A2FV70S RIO-upgrade single FCU, rack-mount
A2FV70D RIO-upgrade duplexed FCU, rack-mount
AFV40S Single FCU with cabinet, Vnet/IP & FIO


Frequently Asked Questions (FAQ)

Q: How is redundancy achieved in the AFV30D-S41251?
A: Redundancy is provided through dual CPUs, dual 24 V DC power modules, and dual Vnet/IP network ports with automatic switchover logic.

Q: Which software license must be ordered?
A: The LFS1550 Control Function license is required to enable field control and I/O node support.

Q: What is the maximum I/O node capacity?
A: Up to 32 field I/O nodes—supporting as many as 512 discrete or analog points via FIO modules.

Q: Can firmware upgrades be performed remotely?
A: Yes, firmware images are uploaded over the network and applied without physical module removal.

Q: What environmental specifications does it meet?
A: It complies with IEC 60068 standards for temperature, humidity, and vibration resistance.

Q: How are alarms and status notified?
A: Via front-panel LEDs, two dry-contact outputs (NC, C), and SNMP traps over Vnet/IP.

Q: Is a 48 V DC power option available?
A: Yes, a 48 V DC variant (suffix code “B”) is offered for telecom and offshore installations.

Q: What mounting accessories are included?
A: Eight M5 rack screws and insulating bushes are supplied for secure installation.

Q: What is the MTBF under normal conditions?
A: The mean time between failures exceeds 100 000 hours when operated according to specifications.

Q: Can different FCU types share the same rack?
A: Yes, AFV30D and AFV30S series units share rack dimensions and network topology, allowing mixed configurations.


Yokogawa AFV30D-S41251 Duplexed Field Control Unit

Authenticity guarantee

All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.

Yokogawa AFV30D-S41251 Duplexed Field Control Unit

Free warehouse

We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.

Yokogawa AFV30D-S41251 Duplexed Field Control Unit

Technical Team

Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.

Yokogawa AFV30D-S41251 Duplexed Field Control Unit

Thoughtful after-sales service

24-hour after-sales service guarantee team, professional and standardized management service system.


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