YOKOGAWA NFAI543-H50

YOKOGAWA NFAI543-H50

The YOKOGAWA NFAI543-H50 is a high-performance analog output module engineered for CENTUM VP and distributed control systems (DCS), delivering reliable 4–20 mA DC signals to valves, actuators, and field transmitters. Designed for precision and durability, it excels in chemical, power, and manufacturing industries where stable, accurate process control is critical.

Model Code Explanation: NFAI543-H50

• NFAI: Series identifier (Analog Output Module for DCS)
• 543: Core module (16-channel isolated, 4–20 mA output)
• H: Supports HART protocolfor digital communication with smart field devices
• 5: Standard switch-over response in non-explosion-proof redundant configuration
• 0: Basic type (no additional options)

Key Technical Parameters

• Channels: 16 isolated analog output channels
• Output Signal: 4–20 mA DC
• Accuracy: ±48 μA (±0.3% full scale)
• Resolution: 16-bit D/A conversion
• Load Resistance: 0–750 Ω per channel
• Isolation Voltage: 1500 V AC (output to system, 1 minute)
• Data Update Period: 10 ms
• Open Circuit Detection: ≤0.65 mA
• Temperature Drift: ±16 μA/10°C (max ±0.01%/°C)
• Power Consumption: 230 mA (5 V DC), 540 mA (24 V DC)
• Operating Temperature: -20°C to +60°C
• Dimensions (W×H×D): 107.5 × 32.8 × 130 mm
• Weight: 0.4 kg (DIN rail mountable)