Product Description
The Allen-Bradley 1771-ODZ is an earlier PLC 5 digital AC output module, functionally equivalent to the 1771-OD. It controls AC-powered devices like solenoids and transformers using isolated circuitry, responding directly to PLC data table bits. This module features 8 image bits, supports , 1, and 2-slot addressing, and includes surge suppression. It can replace 1771-OZ and 1771-OA modules (with a resistor) and 1771-IA modules (with interlocks). The Series A module offers 8 isolated 120V AC outputs (4 sets of 2), operating between 92-138V AC with a 350mA backplane current load. Each output handles up to 2A continuously, with a module maximum of 6A. Signal delays are typically 1ms (Off to On) and 8.3ms (On to Off). It dissipates a maximum of 11.4W (38.9 BTU/hr). A 1771-WD wiring arm simplifies module replacement. Installation requires a 1771 I/O chassis with proper keying. The front panel displays output status (red LEDs) and blown fuse conditions (orange LEDs), and incorporates optical coupling and filtering for noise reduction.
Is Your Device Showing These Signs?
The Allen Bradley 1771-ODZ output module commonly experiences issues such as blown output fuses due to overcurrent conditions or short circuits in field wiring. Technicians frequently address failed output transistors, often caused by inductive load kickback or exceeding voltage/current ratings. Corrosion on the edge connector pins leads to communication failures and requires cleaning or replacement. Backplane issues, including corrupted data or power fluctuations, impact module operation. Firmware corruption necessitates reprogramming or module replacement to restore functionality.
Technical specifications
The Allen-Bradley 1771-ODZ is an early PLC 5 digital AC output module, similar to the 1771-OD, used to control AC devices. It features 8 isolated 120V AC outputs, supports different addressing schemes, and includes surge suppression. It can replace other modules with minor modifications. The module has specific voltage, current, and power dissipation characteristics, and includes features like a wiring arm for easy replacement and LED indicators for output and fuse status. It requires a compatible I/O chassis and incorporates noise reduction techniques.
Our Repair Process for the
1771-ODZ
Our repair process for the Allen Bradley 1771-ODZ output module begins with a thorough inspection for blown output fuses, which are replaced after identifying and correcting the overcurrent condition or short circuit. Failed output transistors are replaced, and measures are implemented to mitigate inductive load kickback and ensure adherence to voltage/current ratings. Edge connector pins are meticulously cleaned or replaced to eliminate corrosion-related communication failures. Backplane issues, including data corruption or power fluctuations, are addressed through diagnostics and repair of the backplane. Firmware corruption necessitates reprogramming the module or complete module replacement to restore proper functionality.
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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.
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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.