1769-IQ32 Allen-Bradley 32-Point DC Input Module

Allen-Bradley 1769-IQ32 32-Point 24V DC Input Module

Product Introduction

The 1769-IQ32 belongs to the Allen‑Bradley Compact I/O family. It provides 32 discrete input channels for 24V DC signals. Each channel supports sink or source configuration, giving you flexible wiring options. This module divides its inputs into four electrically isolated groups. Every group contains eight individual points.

You can use the 1769-IQ32 with CompactLogix controllers and the MicroLogix 1500 system. It also works with adapters like the 1769-ADN DeviceNet and the 1769-AENTR Ethernet adapter. The module follows a power supply distance rating of eight modules. That means you must not place it more than eight slots away from the power supply.

Additionally, this input module operates within a wide temperature range. It functions from 0 °C to 60 °C (32 °F to 140 °F). For storage, it tolerates -40 °C to 85 °C (-40 °F to 185 °F). The operating humidity range is 5 % to 95 % non‑condensing.

Technical Specifications

The 1769-IQ32 has an on‑state voltage threshold of 10V DC. Its off‑state voltage is 5V DC. The nominal voltage category is 24V DC sink/source. Operating voltage varies with temperature:

• At 30 °C (86 °F): 10…30V DC

• At 60 °C (140 °F): 10…26.4V DC

The input delay for the on state is 8 ms. Isolation is reinforced between input points and the bus, plus between groups. Isolation voltage is 75V DC tested at 1697V DC for one second.

Key electrical parameters:

• Inputs per module: 32

• Groups: 4 (8 inputs each)

• Wiring: sink/source selectable

• Replacement terminal block: 1769-RTBN18

• Wire size (solid): 22–14 AWG

• Wire type: copper, 90 °C

Mechanical & Environmental Ratings

The 1769-IQ32 weighs 0.97 lb (440 g). Its shipping dimensions are 8 x 8 x 5 in (118 x 52.5 x 87 mm). The slot width is 1.5 inches. It can be mounted on a panel or a DIN rail. For DIN rail mounting, the operating shock rating is 20G. For panel mounting, it is 30G.

Operating vibration is 10 to 500 Hz at 5G, 0.030 inches peak‑to‑peak. The enclosure style is open‑type. It carries c‑UL and CE certifications for North America and Europe. Maximum operating altitude is 2000 m (6561 ft) without derating.

Installation Guidelines

First, verify the power supply distance rating. Do not install the 1769-IQ32 more than eight modules away from the power supply. Next, use copper wire rated for 90 °C. Strip solid wires to the correct length for 22‑14 AWG.

Then, attach the removable terminal block 1769-RTBN18 securely. Tighten screws to 6 lb·in. You can snap the module onto a DIN rail or screw it onto a panel. Furthermore, keep the module away from extreme humidity or vibration beyond the specified limits.

Finally, connect the module to a CompactLogix or MicroLogix 1500 controller. Use the 1769-ADN or 1769-AENTR adapter if needed. Apply power only within the 10‑30V DC range.

Packaging List

• 1769-IQ32 module (one unit)

• Replacement door

• Removable terminal block (1769-RTBN18)

• Installation instructions leaflet

Note: Certificates and warranty are not included in the package.

Shipping

We ship the 1769-IQ32 via FedEx, UPS, or DHL. Standard delivery times depend on your location.

Frequently Asked Questions (FAQ)

1. Can the 1769-IQ32 work with MicroLogix 1400?
No. It is compatible only with MicroLogix 1500 and CompactLogix controllers.

2. What happens if I exceed the power supply distance rating?
The module may not receive stable power. This can cause input errors or unexpected behavior.

3. Is the 1769-IQ32 a sourcing or sinking module?
It supports both. You can configure each group for sink or source wiring.

4. How do I replace the terminal block?
Use the 1769-RTBN18 replacement terminal block. Always disconnect power before removal.

5. Does this module have diagnostic LEDs?
Yes. Each input group has status indicators. They help you troubleshoot field wiring quickly.