Allen-Bradley 1769-IQ32 32-Point 24VDC Discrete Input Module

Product Overview

When your control system demands high-density digital input monitoring, the Allen-Bradley 1769-IQ32 delivers 32 discrete input channels in a compact form factor. This module, part of the Compact I/O family, is designed for seamless integration with CompactLogix and MicroLogix 1500 controllers. It supports both sinking and sourcing wiring configurations, providing flexibility for diverse field devices. With a power supply distance rating of 8 modules, it fits easily into standard I/O banks.

Technical Specifications Breakdown

The 1769-IQ32 operates on a 24V DC sink/source voltage category with an operating voltage range of 10…30V DC at 30°C (86°F) and 10…26.4V DC at 60°C (140°F). It features an off-state voltage of 5V DC and an on-state voltage of 10V DC, with an input delay of 8 ms. The module has 32 inputs organized into 4 groups of 8 inputs each, allowing efficient wiring and diagnostics. It is compatible with the 1769-ADN DeviceNet adapter and the 1769-AENTR Ethernet adapter for network connectivity.

Industry Applications

In manufacturing environments, the 1769-IQ32 excels at monitoring limit switches, proximity sensors, and pushbuttons across multiple stations. For example, in a packaging line, its 32 inputs can track product presence, conveyor position, and safety interlocks simultaneously. The high-density design reduces panel space and wiring costs compared to using multiple lower-density modules. This makes it ideal for material handling, automotive assembly, and food processing applications where reliable input sensing is critical.

Installation & Setup Guidance

Mount the 1769-IQ32 on a DIN rail or panel using the provided terminal screws. Use copper wire with a temperature rating of 90°C and solid wire sizes from 22 to 14 AWG. The replacement terminal block is the 1769-RTBN18. Ensure the module is installed within 8 modules of the power supply to maintain proper power distribution. For CompactLogix systems with more than 8 modules, add an additional power supply unit. Follow standard wiring practices for sink or source configurations based on your sensor type.

Maintenance & Reliability

The 1769-IQ32 operates reliably from 0°C to +60°C (32°F to +140°F) and can be stored from -40°C to +85°C (-40°F to +185°F). It withstands 5% to 95% non-condensing humidity. Regular inspection of wiring connections and terminal block integrity ensures long-term performance. The module's open-style enclosure requires protection from dust and moisture in harsh environments. Periodic testing of input channels against known signals helps identify any degradation early.

Compatibility & Integration

This module works with MicroLogix 1500 and CompactLogix controllers. It supports the 1769-ADN DeviceNet adapter and the 1769-AENTR Ethernet adapter for network integration. The 1769-IQ32 is c-UL and CE certified for use in the US, Canada, and Europe. Its reinforced insulation provides isolation of 75 Volts DC tested at 1697 Volts DC for 1 second between input point and bus, and between groups. This ensures reliable operation in electrically noisy environments.

Selection Guide & Purchasing Advice

Before ordering, verify that your controller supports the 1769-IQ32 and that your power supply can handle the additional load. The module weighs 0.97 lb (440 g) and ships in dimensions of 8 x 8 x 5 inches. Available in Series A and B, it is a direct replacement for existing installations. For current availability and lifecycle status, contact plcmatrix.com. We offer competitive pricing and fast shipping on new, surplus, and obsolete industrial automation parts.