NFAI543-H00 Isolated Analog Current Output Module

NFAI543-H00 Isolated Analog Current Output Module | HART Capable

Availability: 99 left in stock

Product Overview The Yokogawa NFAI543-H00 serves as a high-density, 16-channel analog current output interface for the CENTUM VP Distributed Control System (DCS). This module...

SKU: NFAI543-H00

Manufacturer: Yokogawa
Product No.: NFAI543-H00
Product Type: DCS Output Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The Yokogawa NFAI543-H00 serves as a high-density, 16-channel analog current output interface for the CENTUM VP Distributed Control System (DCS). This module executes precise control over field actuators, control valves, and variable speed drives by converting internal digital logic into independent 4-20 mA analog signals. Engineered for the most demanding process environments, the NFAI543-H00 integrates HART pass-through capabilities, allowing operators to manage smart field devices directly through the DCS layer while maintaining robust galvanic isolation.

Condition Statement: We supply the NFAI543-H00 in 100% Brand New, Factory Sealed Original condition, ensuring full hardware revision compatibility and factory-certified performance for mission-critical automation.

Part Number Breakdown: NFAI543 Series

Yokogawa utilizes a specific alphanumeric code to designate functionality and hardware standards:

Code Component	Definition
NFAI543	Isolated Analog Current Output Module (16-channel, 4-20 mA)
-H	HART Communication Support (digital data overlay)
0	Standard functional type
0	Basic hardware revision for universal FIO nest compatibility

Technical Specifications

The NFAI543-H00 provides laboratory-grade conversion accuracy and heavy-duty industrial protection.

Parameter	Specification
Number of Channels	16 (Individually Isolated)
Output Signal Range	4 to 20 mA DC
Accuracy	±0.3% of Full Scale
Allowable Load Resistance	0 to 750 Ω
Withstanding Voltage	1500 V AC (Output-to-System, 1 minute)
Data Refresh Cycle	10 ms
Output Step Response	100 ms
Circuit-Open Detection	Triggered at ≤ 0.65 mA
Dimensions	130 × 107.5 × 32.8 mm (Standard FIO Size)
Weight	0.5 kg

Engineering Advantages

The NFAI543-H00 resolves complex integration and safety challenges in large-scale plant environments:

High-Density Control Architecture: By managing 16 independent loops in a single slot, the module significantly reduces the hardware footprint. This allows engineers to design smaller control cabinets and lowers the overall cost per I/O point in complex valve manifold applications.
Superior Galvanic Isolation: A 1500 V AC withstand voltage protects the system bus from field-side electrical surges. This barrier effectively blocks ground loop currents and transients common in power plants and refineries, preventing damage to the central processor and maintaining system uptime.
Intelligent Safety Fallback: Upon loss of communication with the controller, the NFAI543-H00 automatically executes user-defined fallback values for every channel. This forces critical valves into a pre-determined "safe" position (Open, Closed, or Hold), preventing process excursions during network disruptions.
Advanced Loop Diagnostics: The module continuously scans the integrity of the 4-20 mA loop. It identifies open circuits (≤ 0.65 mA) in real-time and alerts the operator station, enabling immediate maintenance without the need for manual loop testing.

FAQs

Does the NFAI543-H00 support HART asset management?

Yes. The "-H" designation confirms full HART pass-through support. This enables plant asset management software (such as PRM) to configure, calibrate, and monitor smart positioners through the existing 4-20 mA field wiring.
Is it possible to replace this module while the DCS is running?

The module supports hot-swapping within a live CENTUM VP system. In a redundant configuration, you can replace a faulty NFAI543-H00 module without interrupting the control signals or the operation of other modules in the same FIO nest.
Can the NFAI543-H00 drive long-distance cable runs?

With a maximum allowable load resistance of 750 Ω, this module easily drives long cable lengths even when using high-impedance smart actuators and positioners common in sprawling petrochemical facilities.
Can I use this module for 0-10V voltage output devices?

No. This is a dedicated current output module. To drive voltage-controlled devices, you must use an external current-to-voltage converter or select a module from the NFAV series.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.