ABB Bailey INFI 90 IMDSI22 Digital Input Module

Overview

The ABB Bailey IMDSI22 is a Digital Input Module used in the INFI 90 distributed control system. It provides high-density acquisition of discrete field signals and transmits them to the controller via the INFI 90 I/O expander bus for industrial automation applications.

Technical Specifications

• Product Type: Digital Input Module (DI)
• Part Number: IMDSI22
• System: ABB Bailey INFI 90 / INFI 90 OPEN
• Input Channels: 16 digital input points
• Input Voltage Range:
  • 24 VDC
  • 48 VDC
  • 125 VDC
  • 120 VAC
• Input Characteristics:
  • Optically isolated inputs
  • Debounce filtering: 17 ms fixed
  • Group-based input architecture (A/B groups)
• Power Requirements:
  • +5 VDC (from backplane)
  • Typical current: ~115–150 mA class (system dependent)
• Interface:
  • INFI 90 I/O Expander Bus
  • P1/P2/P3 backplane connectors
• Termination:
  • NTDI01 / NIDI01 termination unit
  • Field wiring via TU/TM termination system
• Configuration:
  • Hardware DIP switch addressing (S1)
  • 32 jumper configuration (application dependent)
• Mounting:
  • INFI 90 Module Mounting Unit (MMU)

Physical Data

• Dimensions: 3.7 × 31.7 × 17.8 cm
• Weight: 0.22 kg

Key Features

• 16-channel universal digital input acquisition
• Supports AC and DC industrial field signals
• High-density compact single-slot design
• Optically isolated input architecture for noise immunity
• Hot-swappable module design (system dependent)
• Front-panel LED status indication per channel group

Installation Notes

• Install in INFI 90 Module Mounting Unit (MMU)
• Connect field wiring via NTDI01 or compatible termination unit
• Configure module address via DIP switch (S1)
• Verify voltage class selection before commissioning
• Ensure proper grounding and shielding in cabinet installation