ABB AI931N Analog Input Module 4 Channels

ABB AI931N Analog Input Module for Non-Hazardous Areas

Product Introduction

The ABB AI931N also known as 3KDE175513L9310 belongs to the S900 remote I/O system. You can install this module in safe or non-hazardous areas only. For Zone 1 or Zone 2 locations, you would need the type B variant instead.

This unit connects passive field devices that transmit 0-20 mA or 4-20 mA signals. It communicates with the control system via PROFIBUS DP. Consequently, you can place the I/O system directly in the field and reduce marshalling and wiring costs.

Key Features and Benefits

Passive Inputs and HART Support

The ABB AI931N offers four passive channels for current signals. Each input includes short circuit and break detection. Additionally, the module transmits HART frames via the fieldbus and supports cyclic HART variables. This feature allows you to access smart device data without extra wiring.

Hot Swap and Diagnostics

You can replace this module during operation without powering down the system. Hot configuration in run and hot swap functionality are both standard. Extended diagnostics help you locate problems quickly. Furthermore, simplified maintenance comes from auto-diagnostics that run continuously.

G3 Coating for Harsh Environments

All components receive G3 coating according to ISA-S71.04. This coating protects the electronics from corrosive atmospheres. Therefore, the 3KDE175513L9310 works reliably in chemical plants or coastal installations where air quality may be poor.

Technical Specifications

Input Characteristics

The ABB AI931N has four analog input channels. The signal type is passive 4-20 mA. Electrical isolation exists between input and bus as well as between input and power. A common return path is shared for all four inputs, which saves terminal space.

Environmental and Certification

This module carries the CE mark for European markets. It does not have intrinsic safety certification because it is designed for safe areas only. For humidity, the unit operates at 93 percent plus or minus 3 percent relative humidity at 40 degrees Celsius. The maximum ambient temperature ranges from -20°C to 60°C.

Compliance and Dimensions

RoHS compliance follows DIRECTIVE 2011-65-EU, and WEEE compliance follows DIRECTIVE 2012-19-EU. The WEEE category is small equipment with no external dimension exceeding 50 cm. The AI931N measures 20 mm in width, 104 mm in depth, and 104 mm in height. Its product net weight is 0.125 kg.

Mechanical and System Data

The 3KDE175513L9310 uses the S900 mechanics. It fits directly into the S900 I/O system rack. You can install the entire S900 system in non-hazardous areas only when using type N modules. The system remains sturdy, error-tolerant, and easy to service.

Integrated disconnection mechanisms allow replacement during live operation. Therefore, you do not need to interrupt the primary voltage to exchange power supply units or I/O modules. This feature minimizes production downtime significantly.

Installation Guidelines

First, mount the S900 rack inside a control cabinet or enclosure located in a non-hazardous area. Ensure the ambient temperature stays between -20°C and 60°C. Next, insert the ABB AI931N into the appropriate slot. The hot swap feature lets you do this without turning off the system power.

Then connect your passive 4-20 mA field devices to the input terminals. For HART communication, verify that your PROFIBUS DP master supports HART pass-through. Finally, configure the module using FDT-DTM tools. These tools provide excellent configuration options and diagnostic capabilities.

Packaging List

• ABB AI931N analog input module (3KDE175513L9310) – 1 unit

• Product identification label – 1 piece

• Quick installation guide – 1 copy

Note: Cables, rack, power supplies, certificates, and warranty documents are not included.

Shipping Methods

We ship worldwide using Fedex, UPS, or DHL.

Frequently Asked Questions (FAQ)

1. Can I use the ABB AI931N in a Zone 2 hazardous area?
No, the AI931N is designed for non-hazardous safe areas only. For Zone 2 installations, please use the type B variant AI931B instead.

2. Does this module support HART communication?
Yes, the 3KDE175513L9310 transmits HART frames via the fieldbus. It also supports cyclic HART variables for continuous smart device data.

3. Can I replace the module while the system is running?
Yes, the hot swap functionality allows you to exchange the ABB AI931N without interrupting the primary voltage or stopping the process.

4. What is the difference between AI931N and AI931B?
The AI931N is for non-hazardous safe areas and has no intrinsic safety certification. The AI931B is ATEX certified for Zone 2 hazardous areas and supports intrinsically safe field devices.

5. Is G3 coating included on this module?
Yes, all components of the AI931N receive G3 coating according to ISA-S71.04. This coating protects against corrosive atmospheres in industrial environments.