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- 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
- 25
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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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
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Uninterrupted Operation: Fully redundant CPUs, power supplies, and Vnet/IP ports with automatic switchover eliminate single points of failure.
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Modular Scalability: LFS1550 controller supports up to 32 field I/O nodes, enabling flexible expansion as your process evolves.
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Space-Saving Design: 4U rack height and 482.6 mm depth optimize valuable control room real estate.
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High-Speed Networking: Dual-redundant Vnet/IP interfaces deliver low-latency communication and seamless integration with upstream and downstream systems.
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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.
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.
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.
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%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.