Key Features

Signal Input

• Type: 16 channels of 4-20mA DC current input (non-isolated)
• Resolution: 16-bit analog-to-digital conversion
• Accuracy: ±0.1% of full scale (typical)
• Sampling Rate: Configurable per channel (e.g., 10–100 ms update time)

Compatibility & Integration

• System Compatibility:
  • Works with FIO (Field I/O) units (e.g., AFV30D, A2FV50S)
  • Integrates with CENTUM VP DCS and Engineering Windows (EWS)
• Hot-Swappable: Supports online replacement in redundant configurations
• Wiring:
  • Terminal block connections for field devices
  • Supports HART communication (if enabled in firmware)

Diagnostics & Protection

• Fault Detection: Open wire, over-range, under-range, and signal drift alarms
• LED Indicators: Per-channel status (active, fault, communication)
• Noise Immunity: Shielded terminal design for EMI/RFI protection

Environmental & Mechanical

• Operating Temperature: -20°C to +70°C
• Isolation: Non-isolated (all channels share a common ground)
• Certifications: Complies with IEC 61131-2 for industrial use

Suffix Code Breakdown (AAI141-S2)

Note:

• For isolated 4-20mA inputs, use the AAI143 series.
• Non-isolated design requires careful grounding to avoid noise interference.

Typical Applications

• Process Monitoring: Pressure, flow, level, and temperature transmitters
• Batch Control: High-density analog signal acquisition
• Safety Systems: Integration with ProSafe-RS for critical measurements

Installation & Configuration

1. Slot Assignment: Install in FIO I/O unit slots (refer to FCU manual).
2. Wiring:
   • Use shielded twisted-pair cables for noise reduction.
   • Ensure proper grounding to avoid ground loops.
3. Configuration:
   • Set input ranges and alarms via CENTUM VP Engineering Studio.
   • Calibrate using Yokogawa’s Field Device Manager (FDM).

SKU: YOKO-AAI141S2