Product Summary
The 1746-IB32 is a high-density digital input module for SLC 500 systems. It provides thirty-two sinking inputs for 24VDC signals. Engineers use it to connect switches and sensors reliably.
Theme A: Product Procurement & Buyer Guide
Why Choose the 1746-IB32 for Your System?
The 1746-IB32 offers a robust solution for monitoring discrete devices. It accepts a voltage range of 15-30VDC at 50°C. This flexibility ensures stable operation in demanding industrial environments.
Key Specifications for Procurement Managers
This module consumes only 0.05 A from the 5VDC backplane. Its power dissipation is just 6.65 Watts total. These low values reduce overall system power requirements significantly.
Solving Common Application Pain Points
You can wire up to thirty-two input signals to one module. This high channel count saves valuable chassis slots. It also reduces the total cost per input point for your project.
Ensuring Compatibility with Your Controller
The 1746-IB32 works with any SLC 500 processor. You can install it in local or remote chassis configurations. It fits any 1746 chassis slot except slot one.
Understanding the Signal Characteristics
This module uses a sinking input topology for 24VDC signals. It features a fast signal delay of 3 ms for both transitions. This speed allows for rapid detection of changing field conditions.
Managing Environmental and Mechanical Stress
The module operates between 0 and 60 degrees Celsius. It withstands shocks up to 30G and vibration at 1G. This rugged design ensures long-term reliability in harsh factory floors.
Theme B: Step-by-Step User & Installation Guide
Preparing for a Safe Installation
Always remove power from the entire chassis before starting. The 1746-IB32 does not support hot swapping (RIUP). This step prevents damage to the module and backplane.
Mounting the Module into the Chassis
Align the module with the card guides in an empty slot. Slide it firmly into the 1746 chassis until it seats correctly. Secure it with the top and bottom retaining screws.
Wiring the Removable Terminal Block
Use the included 1746-HT or 1746-HCA terminal block for connections. Wire each field device to the correct input terminal number. The module supports a nominal input current of 5.1 mA at 24VDC.
Verifying the Off-State Conditions
Ensure the off-state voltage does not exceed 5.0 Volts DC. The maximum off-state leakage current is 1.5 mA. These parameters prevent false triggering of your inputs.
Testing the Signal Path
Apply a 24VDC signal to an input channel to verify operation. The module will register the ON state at a minimum of 15.0 Volts. Check the input status indicator on the module face.
Performing Final System Checks
Confirm the backplane current draw is correct at 0.05 A. Verify the isolation rating of 1500 Volts AC is intact. This final test confirms a safe and proper installation.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1746-IB32 SLC 500 Input Module
- One (1) Removable Terminal Block (RTB) for wiring
- One (1) Installation and wiring instruction sheet
- ESD protective packaging for safe transit
- Express delivery shipping is available via FedEx, UPS, and DHL
