Product Description
The Allen-Bradley 1771-IVN is a compact, cost-effective PLC 5 DC input module that translates user-supplied 10-60V DC signals into logic levels for the processor, directly controlling corresponding data table bits. This Series C module, supporting and 1-slot addressing, features 32 inputs (arranged in four groups of eight) and utilizes a 1771-WN wiring arm for easy module replacement without disconnecting wires. Designed for sink DC input signal termination, it operates within a 10-30V DC range, exhibiting a typical 6ms (2) signal delay for both on and off states. The module, installed in a 1771 I/O chassis, draws 280mA from the backplane, dissipates 15.6W (53.3 BTU/hr), and has a maximum off-state current of 1.7mA. Proper installation is ensured by keying bands located between pins 14-16 (lower connector) and 30-32 (upper connector). The front panel includes 32 status indicators, and optoelectrical isolation along with input filtering protect the system from electrical noise and transients.
Is Your Device Showing These Signs?
The Allen Bradley 1771-IVN I/O module commonly experiences issues such as backplane communication failures due to corrosion on the connector pins, resulting in data transmission errors and PLC downtime. Resolving this requires thorough cleaning or replacement of the connector. Component degradation, specifically electrolytic capacitor failure on the power supply section, causes voltage instability and erratic module operation. Firmware corruption during upgrades or power surges leads to module malfunction, necessitating a firmware reflash. Input signal noise and improper grounding introduce false signals, requiring noise filtering and proper grounding techniques.
Technical specifications
The Allen-Bradley 1771-IVN is a PLC 5 DC input module that converts 10-60V DC signals into logic for the processor. It's a Series C module with 32 inputs, uses a 1771-WN wiring arm for easy replacement, and is designed for sink DC input signal termination (10-30V DC). It has a 6ms signal delay, draws 280mA from the backplane, dissipates 15.6W, and features keying bands for proper installation. The module also includes status indicators, optoelectrical isolation, and input filtering for noise protection.
Our Repair Process for the
1771-IVN
Our repair process for the Allen Bradley 1771-IVN I/O module begins with a comprehensive diagnostic assessment to pinpoint the root cause of the failure. If backplane communication issues are present, the connector pins undergo meticulous cleaning or complete replacement to eliminate corrosion. Suspected component degradation, particularly electrolytic capacitor failure, prompts immediate replacement of the faulty components within the power supply section to restore voltage stability. In cases of firmware corruption, a firmware reflash is performed to restore proper module operation. To address input signal noise and grounding problems, noise filtering techniques are implemented, and proper grounding is established to ensure signal integrity.
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.