ABB IMDSI14 Symphony Plus Digital Input Module 16-Channel 24/48VDC
Product Overview
The ABB IMDSI14 is a high-density digital input module engineered for the Symphony Plus and Harmony (INFI 90) distributed control systems. This module provides 16 optically isolated channels designed to interface with discrete field devices such as limit switches, emergency stop buttons, and relay contacts. Known for its high integrity, the IMDSI14 is often utilized in safety-related applications and critical process automation where signal accuracy and galvanic isolation are paramount. It effectively converts external field signals into logic-level data for the system controller while protecting sensitive backplane electronics from industrial electrical noise and surges.
Technical Specifications
The following technical data outlines the electrical and physical parameters of the IMDSI14:
| Parameter | Specification Details |
| Model Number | IMDSI14 |
| Manufacturer | ABB (Symphony Plus / INFI 90) |
| Input Channels | 16 Optically Isolated Channels |
| Nominal Input Voltage | 24 VDC / 48 VDC (Application Dependent) |
| Input Voltage Range | 15 VDC to 60 VDC |
| Input Current | 7 mA @ 24 VDC (Typical) |
| Input Delay | 10 ms (On/Off Filtering) |
| Isolation Voltage | 500 VAC (Input-to-Logic) / 2000 V RMS (Safety Variant) |
| Backplane Power | 5 VDC @ 2.72 W (Total Module Load) |
| Operating Temperature | 0 °C to 55 °C (Standard) / -20 °C to +60 °C (Enhanced) |
| Dimensions (WxHxD) | 3.8 cm x 17.8 cm x 1.3 cm (Module Only) |
| Weight | 0.2 kg (0.44 lbs) |
| Mounting | Single Slot in Module Mounting Unit (MMU) |
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