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Product Description
The Allen-Bradley 1771-TCMR is a resistance-sensor temperature control module designed for use with the 1771-ASB adapter in an I/O chassis. It supports various resistance sensors (100 Ohm platinum (USA/European), 120 Ohm nickel, 10 Ohm copper) and receives input via the 1771-RTP-4 remote termination panel. Key features include 8 independent heat/cool control loops, a startup algorithm, PID auto-tuning, 16-bit A/D conversion, self-calibration, and open-circuit detection. It's slot-independent within the chassis and requires initial calibration after 6 months, followed by annual calibrations. The module withstands 1000VDC isolation, draws 1.3A (Series A) or 1.5A surge (Series B), operates between 0-60C (avoiding temperature changes exceeding 0.5C/minute), and stores between -40-85C. It weighs 1.8 lbs, has >10 megaohm input impedance, a 5-second open-input detection time, a 9Hz input bandwidth, and a 1-second update time for all 8 loops.
Is Your Device Showing These Signs?
The Allen Bradley 1771-TCMR temperature controller module commonly experiences issues related to thermocouple input failures, resulting in inaccurate temperature readings or complete loss of signal. Resolve this by verifying proper thermocouple wiring, checking for open or short circuits in the thermocouple itself, and confirming the integrity of the cold junction compensation. Address communication faults by inspecting the backplane connection, ensuring proper module addressing, and validating compatibility with the PLC's communication protocol (e.g., Remote I/O). Calibration drift is a known problem; perform routine calibrations using a precision temperature source to maintain accuracy. Power supply fluctuations cause erratic behavior; confirm stable voltage levels at the module.
Technical specifications
The Allen-Bradley 1771-TCMR is a temperature control module for I/O chassis, working with the 1771-ASB adapter and 1771-RTP-4 panel. It supports multiple resistance sensors and offers 8 independent heat/cool control loops with features like PID auto-tuning, 16-bit A/D conversion, self-calibration, and open-circuit detection. It's slot-independent, requires periodic calibration, and has specific electrical, environmental, and performance specifications.
Our Repair Process for the
1771-TCMR
Our repair process for the Allen Bradley 1771-TCMR temperature controller module begins with a thorough inspection of thermocouple wiring to confirm correct connections. Technicians then check the thermocouple for open or short circuits and verify the integrity of the cold junction compensation. Communication faults are addressed by inspecting the backplane connection, ensuring proper module addressing, and validating compatibility with the PLC's communication protocol. Calibration is performed using a precision temperature source to correct for drift and maintain accuracy. Power supply stability is confirmed by measuring voltage levels at the module to eliminate fluctuations.
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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Ships from Rochester, NY