Allen-Bradley 1746-OB32 SLC 500 32-Point Digital Output Module

Description

The Allen-Bradley 1746-OB32 is a high-density digital output module designed for the SLC 500 programmable logic controller (PLC) platform. This module provides 32 points of transistor source output, making it an efficient solution for controlling a wide range of DC-operated industrial devices such as solenoids, contactors, and indicators. Engineered for reliability in demanding automation environments, the 1746-OB32 integrates seamlessly into the SLC 500 chassis, offering robust performance for complex control applications.

Features

• 32-point transistor source output configuration.
• Wide operating voltage range of 5-50 VDC.
• Two groups of 16 outputs per common for flexible wiring.
• Low backplane power consumption of 190 mA at 5 VDC.
• Compact open-style enclosure for standard SLC 500 rack mounting.

Applications

This module is widely utilized in manufacturing and process control systems where high-density DC output switching is required. Typical applications include machine tool control, assembly line automation, packaging equipment, and material handling systems that rely on the SLC 500 architecture.

Technical Specifications

Installation Guidelines

• Ensure the PLC chassis power is disconnected before installing or removing the module to prevent electrical damage.
• Slide the module into the desired slot of the SLC 500 chassis and secure it using the integrated mounting screws.
• Use appropriate shielded cabling for output signals to minimize electromagnetic interference (EMI).
• Ensure proper grounding of the chassis to a common earth point to maintain signal integrity.
• Maintain adequate ventilation around the chassis to prevent overheating during continuous operation.

FAQ

What is the output type of this module?
The 1746-OB32 is a transistor source output module, meaning it provides a positive voltage signal to the connected load.

How many points are there per common?
The module features 32 points total, organized into two groups of 16 points per common.