ABB Bailey IMDSO15 Digital Output Module for INFI 90 Systems

The ABB Bailey IMDSO15 provides 16 digital output channels for INFI 90 distributed control. This module drives relays, solenoids, and indicator lamps from your DCS logic. You can use it for pump start-stop, valve positioning, and alarm annunciation. Each channel delivers high current capability for direct field device control. Consequently, this module eliminates intermediate interposing relays in many applications.

Technical Specifications Overview

Functional Features and Output Capabilities

The ABB Bailey IMDSO15 switches both AC and DC loads without additional components. You can connect each output directly to contactors, solenoids, and pilot lights. The module provides short-circuit protection with automatic channel shutdown. Furthermore, the LED indicators show the real-time status of every output channel.

Each group of four outputs shares a common supply terminal. Therefore, you can use different voltages for different groups on the same module. The solid-state design has no moving parts for long service life. Additionally, the module reports load faults back to the DCS controller.

Installation and Wiring Guidelines

First, insert the ABB Bailey IMDSO15 into any INFI 90 I/O slot. Next, connect the external 24V logic supply to the designated terminals. Then, wire your field devices to the output screw terminals. Finally, apply the load voltage to each group’s common terminal.

You must fuse each output group for overcurrent protection. The module does not include replaceable internal fuses for field wiring. Always use copper wire rated for at least 75°C. Furthermore, keep output wiring separate from low-level analog signal cables.

This digital output module works perfectly for motor control and valve actuation. It also drives signal lamps and audible alarms in control rooms. The ABB Bailey IMDSO15 replaces relay racks with compact solid-state design. You can hot-swap the module without powering down the entire chassis.