The ABB AI820 (3BSE008544R1) is a high-performance analog input module designed for the S800 I/O series. This module features four individual channels, each providing galvanic isolation to ensure signal integrity and protection against ground loops in industrial control environments.

Features

• Four analog input channels with independent galvanic isolation.
• Supports a wide range of signal types including -20 to +20 mA, 0(4) to 20 mA, -10 to +10 V, and 0(2) to 10 V.
• High-resolution 14-bit plus sign conversion for precise process monitoring.
• Integrated input filtering with a 40 ms rise time (0-90%).
• Robust design with a dielectric test voltage of 500 V AC.
• Efficient power management with low power dissipation of 1.7 W.

Applications

The AI820 module is engineered for use in demanding process automation systems, including DCS and PLC environments where high-precision analog data acquisition is required. It is suitable for monitoring sensors, transmitters, and other field devices that output standard current or voltage signals.

Technical Specifications

Installation Guidelines

• Ensure the system power is disconnected before installing or removing the module from the I/O base.
• Mount the module onto a compatible S800 I/O baseplate, ensuring the mechanical locking mechanism is fully engaged.
• Use shielded twisted-pair cabling for all analog inputs to minimize EMI interference.
• Maintain proper grounding practices for the cable shields to prevent noise injection.
• Ensure adequate ventilation in the cabinet to maintain operating temperatures within the manufacturer's specified limits.
• Handle with care to avoid ESD damage; use a grounded wrist strap during installation.

FAQ

Q: Does the AI820 support 4-20 mA signals?
A: Yes, the AI820 supports both 0-20 mA and 4-20 mA current input ranges.

Q: Are the channels isolated from each other?
A: Yes, the AI820 features individual galvanic isolation for each of its four channels.