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Allen Bradley 1756-M3

Allen Bradley

PLCs

ControlLogix

1756-M3

ISO 9001:2015 Certified Quality

Our certified process ensures consistent quality and reliable repairs every time.

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2-Year Repair Warranty

We stand behind our repairs with an extensive 2-year warranty on parts and labor for your peace of mind.

Fast Turnaround Time

Our efficient process and large parts inventory help minimize your operational downtime.

Expert Component-Level Repair

We find and replace individual failed components, offering a more affordable and effective repair than full replacement.

Free, No-Obligation Quote

Send us your item for a free evaluation and receive a detailed repair quote with no commitment required.

Product Description

The Allen-Bradley/Rockwell Automation 1756-M3 is a ControlLogix expansion memory module (part of the Bulletin 1756 line) for systems with 750 KB to 32 MB of memory. It requires 1.20-1.25A at 5.1V DC and 0.014-0.014A at 24V DC backplane current and operates in temperatures from 0-60C (32-140F) with 5-95% non-condensing humidity. It can withstand 2G vibration (10-500 Hz) and 30G shock, weighs 0.22 kg (7.7 oz), and features 6kV indirect/8kV air ESD immunity (IEC 61000-4-2).

Is Your Device Showing These Signs?

The Allen Bradley 1756-M3 ControlLogix motion module commonly experiences issues related to firmware corruption, leading to operational failures and communication errors on the EtherNet/IP network. Resolve this by reflashing the firmware using ControlFlash. Axis drive configuration mismatches and incorrect motion profile parameters within the RSLogix 5000 programming environment cause erratic motor behavior and system instability. Address this by verifying and correcting axis parameters, tuning PID loops, and ensuring proper synchronization. Module failures also stem from power supply fluctuations or excessive heat, resulting in component degradation and intermittent faults. Replace the module or improve cooling and power conditioning.

Technical specifications

  • The Allen-Bradley 1756-M3 is a ControlLogix expansion memory module designed for systems with 750 KB to 32 MB of memory. It has specific power requirements, operates within a defined temperature and humidity range, and is built to withstand vibration, shock, and electrostatic discharge. It also has a specified weight.

Our Repair Process for the

1756-M3

Our repair process for the Allen Bradley 1756-M3 ControlLogix motion module begins with addressing firmware corruption by reflashing the module using ControlFlash. Axis drive configuration mismatches and incorrect motion profile parameters are resolved through meticulous verification and correction of axis parameters, precise tuning of PID loops, and guaranteed proper synchronization within the RSLogix 5000 environment. In cases of module failure due to power supply fluctuations, excessive heat, or component degradation, the module is replaced, and cooling and power conditioning systems are improved to prevent recurrence.

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.

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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.

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Ships from Rochester, NY

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