ABB Bailey IMRAO02 Analog Output Module

This output module provides analog control signals for ABB Bailey distributed systems. You will find the ABB Bailey IMRAO02 Analog Output Module driving final control elements like valves and dampers. Its four independent channels support various field devices simultaneously.

Technical Specifications

This module contains four isolated analog output channels for flexible configuration. You can also locate two status LEDs for channel health monitoring. The ABB Bailey IMRAO02 Analog Output Module stores no battery energy for configuration retention. Instead, it uses small hold capacitors for output signal smoothing only. Therefore, this module never requires any routine battery replacement.

Parameter	Specification
Full Product Name	ABB Bailey IMRAO02 Analog Output Module
Series	INFI 90 / Bailey
Module Type	Analog Output Module
Weight	0.42 kg
Length	25.5 cm
Width	3.2 cm (single-wide)
Analog Outputs	4 (isolated)
Output Range	4-20 mA
Load Resistance	0-750 ohms
Resolution	12-bit
Status LEDs	2
Bus Connector	1 x 24-pin
Energy Storage	Hold capacitors only

Signal Generation Details

The ABB Bailey IMRAO02 Analog Output Module draws its operating power from the INFI 90 bus backplane. Each channel provides 4-20 mA current loops for direct actuator control. You can wire each output independently to different field devices without cross-interference. Moreover, the module includes built-in open-loop detection for each channel. This design alerts you immediately when a field wire breaks.

Mechanical Integration and Mounting

You must insert the ABB Bailey IMRAO02 Analog Output Module carefully into any standard INFI 90 slot. After full insertion, secure the module using the top and bottom metal retaining clips. The module measures exactly 25.5 centimeters in length and 3.2 centimeters in width. Its total weight reaches approximately 0.42 kilograms for straightforward handling. Furthermore, the module includes a front extraction handle for easy removal during maintenance.

Environmental and Storage Guidelines

You should store this ABB Bailey IMRAO02 Analog Output Module in an anti-static bag away from moisture. The module operates reliably between 0°C and +60°C ambient temperature. Likewise, keep the unit away from conductive dust or corrosive atmospheres. Because the module uses solid-state components only, it requires zero regular maintenance over its service life.