ABB Bailey IEMMU21 Product Documentation

Product Introduction

The ABB Bailey IEMMU21 is a high-performance interface module designed for industrial automation and control systems. It serves as a critical component in ABB’s Bailey INFI 90 system, facilitating communication between various modules and ensuring seamless integration within complex control architectures. The IEMMU21 is widely used in power generation, oil and gas, and process industries due to its reliability and robust design.

This module is engineered to withstand harsh industrial environments, offering exceptional noise immunity and long-term stability. Its plug-and-play design simplifies installation and maintenance, reducing downtime and operational costs.

Product Advantages

1. High Reliability: Built with industrial-grade components, the IEMMU21 ensures continuous operation even in demanding conditions.
2. Seamless Integration: Compatible with the Bailey INFI 90 system, enabling easy communication between different modules.
3. Noise Immunity: Advanced shielding and filtering techniques minimize electromagnetic interference (EMI).
4. Easy Maintenance: Modular design allows for quick replacement and troubleshooting.
5. Long Service Life: Designed for extended operational periods with minimal degradation in performance.
6. Wide Compatibility: Supports multiple communication protocols and interfaces.

Technical Specifications

Applications

The ABB Bailey IEMMU21 is widely used in:

• Power Plants: For turbine control, boiler management, and grid synchronization.
• Oil & Gas: In pipeline monitoring, refinery automation, and safety systems.
• Chemical Processing: For batch control, reactor management, and safety interlocks.
• Water Treatment: In pump control, filtration systems, and flow regulation.
• Manufacturing: For PLC integration and process automation.

Compatible & Recommended Models

6 Related Models in the Same Series

8 Popular ABB Models (Other Series)

Installation Instructions

1. Power Off: Ensure the system is de-energized before installation.
2. Mounting: Secure the module in a DIN rail or panel using provided screws.
3. Wiring: Connect the power supply (24 V DC) and communication cables as per the wiring diagram.
4. Grounding: Properly ground the module to avoid electrical noise interference.
5. Testing: Power on and verify communication with the control system.
6. Configuration: Use ABB’s engineering software to set up parameters if required.

Frequently Asked Questions (FAQ)

Q1: What is the primary function of the IEMMU21?
A1: The IEMMU21 acts as an interface module in the Bailey INFI 90 system, enabling communication between different control modules.

Q2: Can the IEMMU21 operate in high-temperature environments?
A2: Yes, it supports an operating temperature range of -20°C to +70°C.

Q3: Is the IEMMU21 compatible with third-party systems?
A3: It is designed for the Bailey INFI 90 system but may interface with other systems using appropriate converters.

Q4: What maintenance is required for the IEMMU21?
A4: Periodic inspection for dust accumulation and secure connections is recommended. No routine calibration is needed.

Q5: Can the IEMMU21 be used in redundant configurations?
A5: While the IEMMU21 itself is not redundant, the IEMMU24 model supports redundancy.

Q6: What certifications does the IEMMU21 hold?
A6: It is certified under CE, UL, and complies with IEC 61000-4 for electromagnetic compatibility.