ABB AI910B 3KDE175512L9100 Analog Input Module

ABB AI910B 3KDE175512L9100 Analog Input Module for S900 I/O

Product Introduction

The ABB AI910B (3KDE175512L9100) belongs to the S900 I/O family and carries a Type B rating for Zone 2 hazardous locations. You can use it to connect intrinsically safe field devices installed in Zone 2, Zone 1, or even Zone 0. This module reads 4‑20 mA signals from loop-powered 2‑wire transmitters.

Furthermore, the AI910B supplies power directly to those transmitters. Each of its four channels shares a common return, which simplifies wiring. The module also features electrical isolation between input/bus and input/power, plus short and break detection for reliable diagnostics.

Technical Specifications

The ABB AI910B is a dedicated analog input module with four channels. It communicates with the control system via PROFIBUS DP through the S900 I/O carrier.

• Type: Analog Input

• Number of channels: 4

• Signal type: 4‑20 mA

• HART: No

• SOE (Sequence of Events): N/A

• Redundancy: No (power and communication redundancy available at system level)

• Intrinsic safety: Yes

• Mechanics: S900

• Loop power supply: Yes, for 2‑wire transmitters

• Common return: Yes (all channels share one return)

• Short and break detection: Yes

• Electrical isolation: Between input/bus and input/power

The module supports hot swap and hot configuration in run. You can replace it while the system stays online without interrupting primary voltage. Extended diagnostics are available via FDT/DTM tools.

Environmental and Certification Data

The ABB AI910B is built for harsh industrial environments. Its G3 coating protects against corrosive atmospheres.

• CE mark: Yes

• Hazardous location: ATEX Zone 2

• Corrosive atmosphere: ISA‑S71.04 G3 compliant

• Max ambient temperature: -20 °C to +60 °C

• Relative humidity: Max 93 % ±3 % at 40 °C

• RoHS compliance: DIRECTIVE/2011/65/EU (EN 50581:2012)

• WEEE compliance: DIRECTIVE/2012/19/EU

• WEEE category: Small Equipment (no external dimension over 50 cm)

Dimensions:

• Width: 20 mm (0.79 in.)

• Depth: 104 mm (4.09 in.)

• Height: 104 mm (4.09 in.)

• Weight: 0.13 kg (0.29 lbs.)

Frequently Asked Questions (FAQ)

1. Can the ABB AI910B connect to HART transmitters?
No, the ABB AI910B does not support HART communication. It reads only the 4‑20 mA analog signal. For HART, select a different S900 analog input module.

2. What happens if a channel breaks or shorts?
The AI910B features built‑in short and break detection. It reports the fault to the control system, allowing quick troubleshooting and replacement of the faulty transmitter or wiring.

3. Is the AI910B intrinsically safe by itself?
The ABB AI910B is rated for installation in Zone 2 hazardous areas. It can connect to intrinsically safe field devices in Zone 1 or Zone 0, but proper external barriers may be required depending on your exact zoning and certification needs.

4. Can I replace the AI910B while the system is running?
Yes, the AI910B supports hot swap functionality. You can remove and insert a new module without powering down the S900 I/O system or interrupting the controller.

5. How does the module receive its loop power for transmitters?
The ABB AI910B draws 24 V from the S900 backplane and supplies loop power directly to each connected 2‑wire 4‑20 mA transmitter. No external power supply is needed for the transmitters themselves.