Product Summary
The Allen-Bradley 1762-OB8 delivers eight solid-state sourcing outputs for MicroLogix 1200 systems. It operates from 20.4 to 26.4 Volts DC. Each output point handles a 0.5A load continuously. This module controls actuators and indicators reliably in harsh industrial environments.
Theme A: Product Procurement & Buyer Guide
Selecting the Right Output Module
The 1762-OB8 delivers precise digital output control for demanding applications. It acts as a direct attachment for the MicroLogix 1200 controller. This unit provides eight 24V DC sourcing outputs in a compact package. Engineers choose this module for its reliable solid-state switching technology. It replaces older relay-based units for faster actuation cycles.
Matching Power Requirements
This module draws only 115 mA from the 5V backplane. You must ensure your power supply handles the total system load. Each point delivers a maximum current load of 0.5 Amperes. The total module aggregate draws up to 4 Amperes across all outputs. This power rating supports multiple small solenoids or indicator banks simultaneously.
Understanding Key Electrical Specifications
The module provides a maximum on-state voltage of 1.0 Volts DC. It features a maximum leakage current of 1.0 mA in either state. The signal delay time hits just 0.1 milliseconds for the on-state. This fast response suits high-speed pick-and-place machinery or conveyor controls. The unit also handles a 2A intermittent surge every 2 seconds.
Installation and Mounting Considerations
You mount this unit easily on a standard DIN rail. It requires a maximum power supply distance of 6 module lengths. You must maintain a power dissipation rating of 1.6 Watts. The operating temperature range spans 0 to 55 degrees Celsius. This range allows safe installation near motors or process equipment.
Verifying Certifications and Compliance
The 1762-OB8 carries UL, c-UL, and CE certifications. This approval ensures safe operation in global industrial settings. The group-to-backplane isolation tests at 1200V AC or 1697V DC. This high isolation protects sensitive controller electronics from output faults.
Planning Your Procurement Strategy
You must verify the module series compatibility with your existing system. This unit belongs to the MicroLogix 1200 expansion I/O series. It provides eight extra outputs without taking up a main controller slot. Check your total I/O count before ordering to avoid shortages.
Theme F: Deep-Dive Technical FAQ
What is the maximum current load per output point?
Each output point handles a continuous 0.5 Amperes maximum. The entire module supports a total aggregate of 4 Amperes. This per-point rating supports most standard 24V DC industrial actuators.
How fast does the module switch on and off?
The on-state signal delay time is only 0.1 milliseconds. The off-state delay time reaches 1.0 milliseconds at a resistive load. These fast switching speeds suit high-speed automation tasks precisely.
What environmental conditions can this module withstand?
It operates from 0 to 55 degrees Celsius at 5-95% humidity. The storage range spans -40 to 85 degrees Celsius. It also resists 30G shock and 5G vibration up to 500 Hertz.
Does the module have built-in voltage isolation?
Yes, it provides group-to-backplane isolation for the outputs. Engineers test this isolation at 1200V AC for one full second. This isolation protects the controller bus from output circuit faults.
