Product Description
The Allen-Bradley 1772-LW is a Mini-PLC-2/17 processor, requiring an external power supply, with 7.75K of RAM memory for its 16-bit words and a data table ranging from 48 to 7808 floating words. It supports up to 512 total I/O and 512 analog I/O, with program scan times of at least 7.5 ms/K and typically 12 ms. I/O scan times vary based on addressing: 0.82 ms (2-slot), 2 ms (1-slot), and 2.15 ms (1/2-slot). Requiring 1.25A backplane current, it installs in the leftmost slot of any 1771 I/O chassis and features a 15-pin interface, status indicators, a conformal coating, and uses a 1771-WN wiring arm. Its operating environment ranges from 0-60C (operating), -40-85C (storage), and 5-95% non-condensing relative humidity. Measuring 4.5 x 12.4 x 6.3 inches and weighing 0.3 lbs (0.1 kg), it offers a basic instruction set (including counters, timers, data manipulation, relay logic, basic math, and program control) and an advanced instruction set (including sequencers, jumps, subroutines, data transfer, block transfer, bit shifting, and EAF functions like y +/- x, e +/- x. loge, standard deviation, reciprocal of x, averaging, clock and calendar, and PID).
Is Your Device Showing These Signs?
The Allen Bradley 1772-LW commonly experiences failures due to capacitor degradation within the power supply, leading to voltage instability and PLC malfunction. Communication errors arise from backplane connector corrosion, hindering data transfer between modules. Program corruption occurs due to memory chip failures, necessitating memory replacement and program reloading. Resolving these issues involves replacing faulty capacitors, cleaning or replacing the backplane connector, and replacing the memory chip, followed by thorough system testing to ensure operational stability.
Technical specifications
The Allen-Bradley 1772-LW is a Mini-PLC-2/17 processor with 7.75K RAM, requiring an external power supply. It supports up to 512 total and analog I/O, with program scan times around 7.5-12 ms/K and varying I/O scan times. It installs in the leftmost slot of a 1771 I/O chassis, features a 15-pin interface, status indicators, and a conformal coating. It operates in a specific temperature and humidity range and offers both basic and advanced instruction sets, including math, logic, data manipulation, and EAF functions.
Our Repair Process for the
1772-LW
Our repair process for the Allen Bradley 1772-LW addresses common failure points with precision. Capacitor degradation within the power supply is resolved through capacitor replacement, restoring voltage stability and preventing PLC malfunction. Communication errors stemming from backplane connector corrosion are eliminated by cleaning or replacing the connector, ensuring seamless data transfer between modules. Program corruption due to memory chip failures is rectified by replacing the memory chip and reloading the program. Post-repair, rigorous system testing is conducted to guarantee complete operational stability.
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.
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