YOKOGAWA AAI543-H50K4A00

YOKOGAWA AAI543-H50K4A00 – 16-Channel Isolated Analog Output Module with HART

The YOKOGAWA AAI543-H50K4A00 is a high-density, high-precision analog output module for Yokogawa CENTUM VP and CS 3000 DCS platforms. Designed for process-critical applications, it delivers 16 channels of isolated 4–20 mA control signals with HART communication, ensuring stable, interference-free operation in harsh industrial environments.

Core Technical Specifications

• Model: YOKOGAWA AAI543-H50K4A00 (Analog Output Module, HART-enabled)
• Channels: 16 fully isolated output channels; independent galvanic isolation per channel
• Output Signal: 4–20 mA DC; compliance with IEC 61158-2
• Accuracy: ±0.1% of span; linearity ±0.05%
• Resolution: 16-bit DAC; data update period 10 ms/channel
• Isolation: 1500 V AC for 1 minute (channel-to-system); 2500 V DC channel-to-ground
• Redundancy: Dual-module redundancy; standard switch-over response (≤100 ms)
• HART Protocol: HART 7 compliant; supports 32 HART variables per module
• Load Range: 0–750 Ω; short-circuit protection per channel
• Power Supply: 24 V DC ±10%; power consumption ≤25 W
• Environmental: Operating -10°C to +60°C; storage -20°C to +75°C; IP20 protection
• Physical: 107.5 × 32.8 × 130 mm; weight 0.4 kg; pressure-clamp terminals
• Diagnostics: Circuit-open detection (<0.65 mA); over-range and short-circuit alarms

Key Features & Benefits

The YOKOGAWA AAI543-H50K4A00 combines high density with robust isolation, reducing cabinet space and wiring costs. Its 16-bit precision and 10 ms update ensure accurate, responsive control of valves, actuators, and variable-speed drives. HART integration enables remote configuration, diagnostics, and asset management, cutting maintenance costs and unplanned downtime. Dual redundancy with bumpless failover enhances system availability for critical processes. Built for reliability, the module features EMC compliance (IEC 61000-6-2/4), wide temperature tolerance, and fault diagnostics. Hot-swap support allows online replacement without system shutdown.

Applications

• Oil & Gas: ESD valves, flow control, pressure regulation
• Petrochemical: Reactor control, furnace modulation, distillation column tuning
• Power Generation: Boiler feedwater control, turbine governors, burner management
• Chemical & Pharmaceutical: Precision dosing, pH control, reactor temperature regulation
• Water & Wastewater: Pump speed control, valve positioning, level regulation