Engineering Performance Overview
The NFAI543-500/A4500 is a high-density 4–20 mA analog output module for Yokogawa STARDOM FCN and FCJ autonomous controller systems. It provides 16 channels of current output signals for driving final control devices such as valve actuators, variable frequency drives (VFDs), and analog indicators.
The module features 16-bit high-resolution signal conversion and galvanic isolation, protecting controller logic from field-side electrical noise while ensuring precise process control in industrial environments.
Technical Specification Details
| Parameter | Specification |
|---|---|
| Module Type | Analog Current Output |
| Channel Density | 16 channels (isolated from system logic) |
| Output Signal Range | 4–20 mA DC |
| Load Resistance | 0–750 Ω |
| Conversion Resolution | 16-bit |
| Data Refresh Rate | 10 ms |
| Accuracy | ±0.3% of full scale |
| Power Supply | 5 V DC (backplane, max 450 mA) + 24 V DC loop power |
| Dimensions | 25 mm × 203 mm × 152 mm |
| Weight | 0.4 kg |
| Environment | Industrial noise-resistant design |
Core Application Scenarios
-
Valve Control: Precise modulation of pneumatic or electric control valves in process plants
-
VFD Control: Motor speed regulation in water treatment and power generation systems
-
Redundant Control Systems: Supports dual-redundant FCN-500 architectures for high availability operations
Technical FAQ
What does the /A4S00 suffix mean?
It indicates the connector and terminal configuration, typically supporting pressure clamp or MIL-style cable interfaces.
Is it HART compatible?
No. This is a standard analog output module. For HART communication, use HART-enabled variants such as NFAI543-H.
What happens if 24 V DC loop power fails?
The module will trigger a loop power failure alarm. Output current will drop to 0 mA, causing fail-safe actuators to move to their safe position.
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|---|---|
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| Condition | 100% New with Original Package |
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
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