NFAI543-S00 S1 Yokogawa CENTUM VP Datasheet & Technical Manual

Yokogawa NFAI543-S00 S1 NFAI543 Isolated Analog Output Card

Yokogawa NFAI543-S00 S1 NFAI543 Isolated Analog Output Card

Availability: 20 left in stock

Yokogawa NFAI543-S00 S1 Analog Output Module The Yokogawa NFAI543-S00 S1, also cataloged as the NFAI543 Analog Output Module, operates as...

SKU: NFAI543-S00 S1

Manufacturer: Yokogawa
Product No.: NFAI543-S00 S1
Product Type: Analog Output Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 400g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa NFAI543-S00 S1 Analog Output Module

The Yokogawa NFAI543-S00 S1, also cataloged as the NFAI543 Analog Output Module, operates as a dedicated hardware component for converting controller digital commands into analog field current signals within Yokogawa DCS platforms. The module drives field actuators, control valves, and positioners by sourcing regulated 4 to 20 mA or 0 to 20 mA currents across multiple isolated channels. Integrated circuit-open detection continuously checks field loop integrity to capture open-circuit faults during active operation.

Suffix Breakdown & Model Matrix

Suffix Code	Option Specification
-S	Standard Type
00	Basic Type with no explosion protection
S1	Style 1 hardware revision

Hardware Specifications

Parameter	Specification
Model	NFAI543-S00 S1
Brand	Yokogawa
Origin	Japan
Weight	0.4 kg (Shipping weight: 1.0 kg)
Dimensions	130 mm x 107.5 mm x 32.8 mm
Operating Temp	0 deg C to +55 deg C
Power Consumption	24 VDC nominal
Output Signal	4 to 20 mA / 0 to 20 mA (configurable)
Output Channels	4 / 16 channel options (configuration dependent)
Allowable Load Resistance	0 to 750 ohm (4-20 mA mode)
Accuracy / Resolution	+/-0.1% to +/-0.3% of span; 16-bit resolution
Response Time	LE 10 ms
Isolation Withstanding	1500 VAC for 1 minute between output and system logic
Fault Detection	Circuit-open detection at LE 0.65 mA

4-20 mA HART Loop Protocol & Channel-to-Channel Isolation

The NFAI543-S00 S1 module routes analog control signals to smart valve positioners using the 4-20 mA HART loop protocol. Galvanic and channel-to-channel isolation networks prevent field ground loops from feeding noise back into the main backplane bus or impacting adjacent signal channels. This isolation maintains accurate output tracking during transient electrical disturbances across field wiring loops.

Frequently Asked Questions

Q: What fault condition triggers the circuit-open detection on the NFAI543-S00 S1?

A: The module identifies a field loop wire break or high-impedance fault when loop current drops to 0.65 mA or less.

Q: How does the module react to primary communication or system backplane failures?

A: The hardware supports configurable output fallback settings, holding outputs at pre-designated safe states or last valid values to protect connected field devices.

Field Installation Guidelines

Mount the NFAI543-S00 S1 directly into an assigned I/O slot on the CENTUM VP / FIO base unit chassis. Ensure the backplane connector engages smoothly with the rack receiver before tightening retaining screws.

Route field wiring through twisted-pair shielded cables to terminal blocks. Connect cable shields to a single-point cabinet earth ground terminal to suppress electromagnetic interference. Verify that field loop load resistances remain below 750 ohm to preserve 4-20 mA current drive capability.

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