Allen-Bradley 1746-IB32 Input Module

Description

Allen-Bradley 1746-IB32 Input Module

Product Dimensions：

The Allen-Bradley 1746-IB32 is a high-density Discrete Input Module belonging to the SLC 500 family. It is designed to interface between the PLC controller and external digital input devices.

1. Product Detailed Description

The 1746-IB32 is a Sinking DC Input Module that provides 32 input points. It operates within a voltage range of 15 to 30V DC. Because it is a high-density module, it utilizes a 40-pin header connector rather than standard screw terminals to save space in the chassis. This module is ideal for applications where enclosure space is limited but a high number of I/O points are required.

2. Technical Specifications

3. Product Advantages

• High Density: By packing 32 points into a single slot, it reduces the physical footprint of the PLC system and lowers the cost per I/O point.

• Reliability: Built with industrial-grade components characteristic of the SLC 500 line, known for long lifespans in harsh environments.

• Simplified Integration: Fully compatible with all SLC 500 chassis and fixed/modular controllers.

• Optical Isolation: Provides 1500V isolation between the I/O signals and the logic circuitry, protecting the CPU from electrical noise or surges.

4. Safety and Installation Precautions

• Wiring Method: Unlike lower-density modules, the 1746-IB32 does not have built-in screw terminals. You must use a 1492-series pre-wired cable and a terminal block (AIFM) for connections.

• Heat Dissipation: Due to the high density of points, ensure the cabinet has adequate ventilation to prevent overheating when many inputs are active simultaneously.

• Sinking Configuration: Ensure your field devices (sensors/switches) are “Sourcing” (PNP) type, as this is a “Sinking” module.

• Electrostatic Discharge (ESD): Always wear a grounding wrist strap when handling the module to avoid damaging the sensitive internal CMOS components.

5. Typical Applications

• Manufacturing Lines: Monitoring a large array of proximity sensors, limit switches, and pushbuttons.

• Material Handling: Managing conveyor systems where dozens of photo-eyes track product movement.

• Packaging Machinery: Coordinating high-speed inputs for counting and positioning.

• Retrofitting: Upgrading older systems where space in the existing electrical cabinet is extremely tight.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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