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Overview
The Yokogawa NFAI543-500/A4500 is a high-precision analog output module engineered for Distributed Control Systems (DCS). It delivers four independent 4–20 mA DC output channels, enabling reliable control of actuators, valves, and other field instruments. Designed for demanding industrial environments, this module ensures accurate signal conversion and seamless integration with Yokogawa CENTUM VP and CS series platforms.
Technical Specifications
| Attribute | Details |
|---|---|
| Product Type | Analog Output Module |
| Model | NFAI543-500/A4500 |
| Manufacturer | Yokogawa Electric Corporation |
| Number of Channels | 4 analog outputs |
| Output Signal | 4–20 mA DC |
| Load Resistance | ≤ 600 Ω per channel |
| Accuracy | ±0.1% of full scale |
| Resolution | 16-bit DAC |
| Response Time | ≤ 10 ms |
| Isolation | Channel-to-channel and channel-to-system: 500 V AC |
| Dimensions | 130 × 107.5 × 32.8 mm |
| Weight | 0.4 kg |
| Operating Temperature | 0–55 °C |
| Humidity | 5–95 % RH, non-condensing |
| System Compatibility | Yokogawa DCS (CENTUM VP, CS series) |
Key Features
- Provides stable and precise analog output for critical process control
- Four channels for flexible control of multiple field devices
- Compact design suitable for Yokogawa DCS racks, saving space
- Industrial-grade reliability ensures operation under harsh conditions
- Supports integration with Safety Instrumented Systems (SIS)
- 16-bit resolution for fine control and minimal signal drift
Applications
- Controlling actuators, control valves, and positioners
- Integration into CENTUM VP and CS series DCS systems
- Industrial process control requiring high-precision analog outputs
- Safety and critical control loops requiring reliable AO performance
FAQ
Q: Can this module handle higher current loads?
A: The module outputs standard 4–20 mA per channel. Load resistance must not exceed 600 Ω per channel for stable operation.
Q: Is it compatible with older CENTUM CS systems?
A: Yes, it supports both CENTUM VP and CS series platforms with full compatibility.
Q: How to minimize electrical noise interference?
A: Ensure proper grounding, shielding, and adherence to wiring specifications.
Q: Are similar modules available with more channels?
A: Yokogawa offers multi-channel AO modules such as the NFAI543-600 for 8-channel output applications.
