ABB AI03 – Analog Input Module
Overview
The ABB AI03 is a high-precision analog input module designed for industrial automation systems requiring stable signal acquisition and reliable data transmission. Known for its durability and compatibility with a wide range of ABB control platforms, the AI03 enables seamless integration of analog sensors in demanding environments such as manufacturing, energy distribution, and process control.
Features
High Signal Accuracy: Designed to capture low-voltage analog signals with excellent linearity and minimal drift.
Industrial-Grade Reliability: Resistant to electrical noise and equipped with protective circuits to ensure long-term operation.
Flexible Configuration: Supports multiple analog input signal types, making it suitable for diverse field conditions.
Secure Mounting Design: Compact size and optimized terminal layout allow fast wiring and stable installation.
Real-Time Diagnostics: Built-in status indicators and error reporting functions simplify on-site troubleshooting.

Structure & Composition
The ABB AI03 module is constructed with:
A reinforced electronic board for stable analog-to-digital conversion
Terminal block interfaces for sensor wiring
LED indicators for module status and channel operation
Shielded casing to reduce electromagnetic interference
Rear bus connector for seamless communication with ABB controller racks
Technical Parameters
(For this model, parameters are not presented in a table to vary formatting as requested.)
Input Channels: 4 analog inputs
Supported Signal Types: Current (0–20 mA / 4–20 mA), Voltage (0–10 V)
Resolution: 12–16 bit (depending on system configuration)
Isolation: Channel-to-bus electrical isolation
Operating Voltage: 24 VDC
Operating Temperature Range: –20°C to +60°C
Mounting Method: DIN-rail or system rack installation
Communication: Internal system bus interface

Application Fields
The ABB AI03 is utilized across various industries:
Power generation and distribution monitoring
Petrochemical and refinery automation
Water treatment plants
Factory production lines
Building automation and environmental monitoring systems
Installation & Maintenance
Ensure the analog input wiring follows shielded-cable guidelines to reduce noise.
Mount the module in a well-ventilated control cabinet with adequate spacing for thermal dissipation.
Connect the rear system bus firmly before powering the controller.
Periodically check terminal connections for loosening due to vibration.
Use ABB configuration tools to calibrate or adjust signal ranges when replacing sensors.
Additional Notes
The ABB AI03 is engineered to integrate smoothly into ABB’s modular control architecture, offering long-term service stability and versatile signal handling for complex industrial automation tasks. Its robust performance and ease of maintenance make it a preferred choice for system integrators seeking reliable analog acquisition within distributed control systems.