ABB AI880 AI880A High Integrity Analog Input Module

Overview

The AI880/AI880A High Integrity Analog Input Module is a robust solution designed for high-integrity, high-performance analog input applications. It is ideal for use in both single and redundant configurations, offering 8 channels for unipolar, single-ended current inputs. This module is certified for SIL3 according to IEC 61508 and Category 4 according to EN 954-1, ensuring it meets stringent safety standards.

Technical Specifications:

• Brand: ABB
• Model: AI880/AI880A
• Channels: 8
• Input Type: Unipolar, Single Ended
• Measurement Range: 0…20 mA, 4…20 mA
• Over Range: +12% (0…20mA), +15% (4…20mA)
• Input Impedance: 250 Ω (with Shunt Stick TY801)
• Maximum Field Cable Length: 600 meters (656 yd.)
• Voltage Input: Max 11 V d.c. (non-destructive)
• NMRR (50 Hz, 60 Hz): >40 dB
• Error: <0.1%
• Resolution: 12 bits
• Safety Accuracy: 1.9% (configurable between 0.6%-5%)
• Temperature Drift: Max 50 ppm/°C
• Update Cycle: 10 ms
• Current Consumption:
  • Modulebus 24V: 50 mA (max)
  • Modulebus 5V: 45 mA
  • Process Power Supply (UPx): 260 mA (max, including transmitter current)
• Power Dissipation: 2.4 W
• Transmitter Supply (per channel): 4.5V (max), HART Compatible, 32 mA ± 10%
• Input Filter Rise Time: 190 ms (HW filter)
• Isolation: 8 inputs isolated from ground in one group
• Rated Insulation Voltage: 50 V
• Dielectric Test Voltage: 500 V a.c.

FAQ:

Q1: What is the difference between AI880 and AI880A?
The AI880A includes HART pass-through communication, enabling integration with HART-enabled field devices. The AI880 lacks this feature.

Q2: How does the 3BSE028587R1module ensure safety?
The 3BSE028587R1 is certified for SIL3 according to IEC 61508, ensuring it meets high safety standards required for critical systems.

Q3: What is the maximum field cable length for the 3BSE028587R1 module?
The maximum cable length is 600 meters (656 yd.), allowing for flexible deployment in large-scale installations.

Q4: Can I use the 3BSE028587R1 module in a redundant configuration?
Yes, the 3BSE028587R1 supports both single and redundant configurations, providing enhanced reliability in critical applications.

Q5: What is the resolution of the 3BSE028587R1 module?
The module offers a 12-bit resolution, ensuring accurate and precise measurements.