ABB Bailey IMRDI13 Isolated Digital Input Module

This digital input module processes field contact signals for ABB Bailey systems. You will find the ABB Bailey IMRDI13 Isolated Digital Input Module monitoring limit switches, push buttons, and relay contacts. Its per-channel isolation prevents ground loops from affecting other inputs.

Technical Specifications

This module contains sixteen optically isolated digital input channels. You can also locate two LED status bars for visual channel indication. The ABB Bailey IMRDI13 Isolated Digital Input Module stores no battery energy for configuration retention. Instead, it uses optocouplers for all field-to-logic isolation requirements. Therefore, this module never requires any routine battery replacement.

Signal Conditioning Details

The ABB Bailey IMRDI13 Isolated Digital Input Module draws its operating power from the INFI 90 bus backplane. You can connect either dry contacts or voltage signals to any input channel. The module accepts input voltages from 24 VDC up to 125 VDC without damage. Moreover, each optocoupler provides complete electrical separation between field wiring and logic circuits. This design allows mixing of different voltage sources across channels.

Mechanical Integration and Mounting

You must insert the ABB Bailey IMRDI13 Isolated Digital Input 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 0.51 kilograms for straightforward handling. Furthermore, the two LED bars indicate the real-time status of all sixteen inputs.

Environmental and Storage Guidelines

You should store this ABB Bailey IMRDI13 Isolated Digital Input 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.