Product Description
The Allen-Bradley 1772-LN3 PLC-2 Mini Processor Module, designed for Mini-PLC-2 controllers, is a 3-pound processing unit with 1K words of CMOS read/write memory, capable of controlling up to 128 I/O devices. Installed in the leftmost slot of a 1771 I/O chassis, it features "PROCESSOR," "MEMORY," and "RUN" diagnostic indicators, along with a "RUN/TEST/PROG" mode select switch. Operating within a 0-60C temperature range and 5-95% non-condensing humidity, it supports block transfer, I/O forcing, RS-232-C interfacing, and is compatible with industrial terminals and data highway interfacing. The system power supply includes "BATTERY LOW" and "DC ON" indicators for malfunction detection, making the 1772-LN3 suitable for applications like process control, material handling, and palletizing.
Is Your Device Showing These Signs?
The Allen Bradley 1772-LN3 suffers from capacitor degradation, causing power supply failures and communication errors on the DH+ network. Backplane corrosion leads to intermittent connectivity and module failures. EPROM corruption results in program loss and system malfunction, requiring reprogramming. Triac failures prevent proper output switching, impacting connected devices. Resolve these issues through component replacement, backplane cleaning, and memory restoration to ensure optimal PLC performance.
Technical specifications
The Allen-Bradley 1772-LN3 is a 3-pound PLC-2 Mini Processor Module with 1K words of CMOS memory, designed for Mini-PLC-2 controllers and capable of controlling up to 128 I/O devices. It features diagnostic indicators, a mode select switch, and supports various functionalities like block transfer, I/O forcing, and RS-232-C interfacing. It's suitable for applications like process control and material handling.
Our Repair Process for the
1772-LN3
Our repair process for the Allen Bradley 1772-LN3 begins with a comprehensive diagnostic evaluation to identify capacitor degradation, backplane corrosion, EPROM corruption, and Triac failures. Defective capacitors are replaced with high-quality components to restore stable power supply function and reliable DH+ communication. Backplane corrosion is meticulously cleaned and treated to ensure secure connectivity and prevent module failures. Corrupted EPROM is reprogrammed with the correct firmware to recover lost programs and restore system functionality. Failed Triacs are replaced to guarantee proper output switching and reliable operation of connected devices. Each repaired unit undergoes rigorous testing to verify complete functionality and ensure optimal PLC performance before being returned.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY