Product Overview

The Allen-Bradley 1769-IQ32 is a high-density discrete input module from the Compact I/O family.
It features Thirty-Two (32) 24VDC input channels for space-efficient system design.
These inputs are arranged into Four (4) groups with eight inputs per group.
For wiring flexibility, the 1769-IQ32 supports both sinking and source configurations.
This module works with MicroLogix 1500 controllers and CompactLogix systems alike.
It also supports the 1769-ADN DeviceNet adapter and 1769-AENTR Ethernet adapter.
Because of its high density, this module suits applications with many input points.

Technical Specifications

Input Characteristics

The Allen-Bradley 1769-IQ32 has a voltage category of 24V DC sink/source .
Operating voltage range depends on the ambient temperature condition.
At 30 °C (86 °F) , the range spans 10 to 30V DC for normal operation.
At 60 °C (140 °F) , the range narrows to 10 to 26.4V DC instead.
Off-state voltage measures 5V DC for reliable OFF detection.
On-state voltage requires at least 10V DC to register a logic 1.
Input delay from OFF to ON is 8 ms for input filtering.

Power Supply Distance Rating

The 1769-IQ32 has a power supply distance rating of Eight (8) modules .
Thus, this module must stay within eight modules of the power supply.
For systems with more than eight modules, install an additional power supply.
Always observe this rating to ensure proper backplane power delivery.

Communication and Compatibility

Communication cable uses 32-point configuration for field wiring.
Compatible controllers include MicroLogix 1500 and all CompactLogix processors.
Supported adapters include the 1769-ADN DeviceNet adapter for network connectivity.
It also supports the 1769-AENTR Ethernet adapter for EtherNet/IP networks.
The Allen-Bradley 1769-IQ32 follows the standard CompactLogix rack installation method.

Physical Characteristics

Dimensions and Weight

The 1769-IQ32 weighs 440 grams (0.97 pounds) for easy handling.
Slot width measures 1.5 inches for rack space planning.
Dimensions are 118 x 52.5 x 87 mm (4.65 x 2.07 x 3.43 inches) .
Shipping weight equals 2 lbs with dimensions of 8 x 8 x 5 inches.
Replacement terminal block part number is 1769-RTBN18 for field repairs.

Wiring Specifications

Wire type must be Copper rated at 90 degrees Celsius .
Wire size for solid conductors ranges from 22 to 14 AWG .
The Allen-Bradley 1769-IQ32 uses specialized terminal screws at 6 lb x inches torque.
A replacement door is shipped with the module for field installation.

Enclosure Type

Enclosure rating is open-style , requiring installation within a larger cabinet.
The module has Type 1+ IEC input compatibility for international applications.
Therefore, always mount the 1769-IQ32 in a suitably rated industrial enclosure.

Environmental Specifications

Temperature and Humidity

Operating temperature ranges from 0°C to +60°C (32°F to +140°F) .
Storage temperature spans from -40°C to +85°C (-40°F to +185°F) .
Operating humidity tolerance reaches 5% to 95% non-condensing .
Maximum operating altitude is 2000 meters (6561 feet) without derating.
The 1769-IQ32 functions reliably across these environmental conditions.

Vibration and Shock

Operating vibration rating is 10 to 500 Hz at 5G .
Maximum peak-to-peak vibration reaches 0.030 inches .
For panel-mounted modules, operating shock tolerance equals 30G .
For DIN rail-mounted modules, operating shock tolerance is 20G instead.
Consequently, panel mounting offers better shock resistance for demanding applications.

Isolation Ratings

The Allen-Bradley 1769-IQ32 uses reinforced insulation circuitry.
Isolation voltage measures 75 Volts DC between input point and BUS.
Testing occurs at 1697 Volts DC for 1 second for verification.
Group-to-group isolation applies across all four input groups.
This isolation protects the backplane from field wiring faults.

Certifications

The 1769-IQ32 carries c-UL-us certification for US and Canadian markets.
It is UL Listed for industrial control equipment applications.
CE certification ensures compliance with European safety and EMC standards.
These certifications allow global installation of the Allen-Bradley 1769-IQ32 .

Installation Guidelines

First, select a slot within eight modules of your power supply.
Install the Allen-Bradley 1769-IQ32 into the CompactLogix or MicroLogix rack.
Secure the module using the locking mechanism on the side.
For panel mounting, use the integrated mounting tabs with appropriate screws.
For DIN rail mounting, snap the 1769-IQ32 onto standard 35 mm rail.
Connect field wiring using 22-14 AWG solid copper wire.
For sinking configuration, connect the common to +24V DC.
For sourcing configuration, connect the common to 0V DC instead.
Verify each input group's wiring before applying power.
After installation, configure the module in your controller's I/O tree.

Wiring Configuration Guide

Sinking Mode (Input to Common)

For sinking wiring, the input draws current from the field device.
Connect the field device between the input terminal and +24V DC.
The 1769-IQ32 input turns ON when the field device supplies voltage.
This configuration suits sourcing-type field sensors and switches.

Sourcing Mode (Common to Input)

For sourcing wiring, the input sources current to the field device.
Connect the field device between the input terminal and 0V DC.
The Allen-Bradley 1769-IQ32 input turns ON when the field device sinks current.
This configuration suits sinking-type field sensors and switches.

Package Contents

• 1 x Allen-Bradley 1769-IQ32 discrete input module

• 1 x Replacement door for terminal protection

• 1 x Module identification label

• 1 x Installation instruction sheet

• 1 x Terminal block cover (pre-installed)

Frequently Asked Questions (FAQ)

1. Can the 1769-IQ32 be used with MicroLogix 1100 or 1400?

No, the Allen-Bradley 1769-IQ32 works only with MicroLogix 1500. It also works with CompactLogix but not other MicroLogix models.

2. What is the maximum input delay for this module?

The 1769-IQ32 has a fixed ON delay of 8 ms. OFF delay follows the same 8 ms specification for consistent response.

3. Can I mix sinking and sourcing wiring on different groups?

Yes, the Allen-Bradley 1769-IQ32 allows per-group configuration. Each of the four groups can use either sinking or sourcing wiring independently.

4. What happens if I exceed 30V DC on an input?

Exceeding 30V DC may damage the 1769-IQ32 input circuit. The absolute maximum rating is 30V DC at 30°C operating temperature.

5. Is the 1769-RTBN18 terminal block included with this module?

No, the Allen-Bradley 1769-IQ32 does not include the terminal block. Order 1769-RTBN18 separately for replacement or spare parts.