Delta Motion Upgrade for a Hydraulic Flaker System - From Obsolete to Future-Ready

When the Allen-Bradley 1756-HYD02 hydraulic motion module reached end-of-life (EOL) with no direct supported replacement, ICS migrated the system to a Delta Motion RMC controller, preserving existing sequences and safety logic while increasing production rate.

Project Background

A wood products manufacturer operating three identical flaker machines needed to reduce lifecycle risk in a critical hydraulic motion application. Their existing Allen-Bradley™ hydraulic motion servo module (1756-HYD02) had reached end-of-life (EOL). It was no longer supported, creating a significant risk if the hardware ever failed. 

This was not a quality issue with the original platform; it had performed well over its lifecycle. The challenge was that continued operation was now constrained by obsolescence and parts/support availability. 

ICS replaced the obsolete solution with a Delta Motion RMC controller, maintained the machine’s original functionality and safety integrity, and improved throughput by optimizing cycle performance. 

“Our goal was to remove lifecycle risk without disrupting the machine’s proven operation—and then look for opportunities to make it run better.” - ICS (Engineering Manager)

The Challenge: End-of-Life Risk, Not Performance Failure

Though machines were still operational at the time we were contacted, the company’s controls platform was aging rapidly, and the customer was receiving lifecycle notices indicating that the PLC and associated components were out of date.  

The biggest concern was the hydraulic motion servo hardware: 

  • Original hydraulic motion hardware: Allen-Bradley 1756-HYD02 
  • Problem: Hardware was obsolete / end-of-life, with no direct supported replacement available from the original manufacturer 
  • Risk: If a failure occurred, troubleshooting and support would become increasingly difficult, downtime would extend, and sourcing spares could become unreliable 

In short, the system didn’t need to be “fixed” because it was broken. It needed to be updated because it was becoming unsupported. 

How ICS Executed the Conversion

We worked with the customer to modernize hydraulic motion control while minimizing disruption to production and reducing long-term support risk. Our team delivered the upgrade through a focused scope of work: 

  • Evaluated the existing HYD02-based motion architecture 
    • Documented sequences, interlocks, and operating behavior 
  • Implemented a Delta Motion RMC controller 
    • Replaced the obsolete hydraulic motion functionality with a supported controller platform (not a chassis “card” replacement) 
  • Preserved operation and safety integrity 
    • Maintained original motion sequences, interlocks, and safety logic 
  • Minimized scope and downtime 
    • Completed the conversion with no mechanical modifications 
  • Commissioned and optimized 
    • Verified performance and tuned the motion profile, including improvements to carriage return timing 

Why We Chose Delta Motion RMC

For this upgrade, we needed a solution that could replace an end-of-life 1756-HYD02 with minimal disruption and long-term confidence. The Delta Motion RMC was the right fit because it provides: 

  • Native hydraulic motion control 
  • Strong tuning and diagnostics  
  • Seamless integration into a Rockwell PLC environment  

It is also aligned with Rockwell’s migration direction and backed by strong vendor support and long-term availability, which is the best reason for moving away from obsolete hardware.

Results: Modernized Motion Control and Measurable Performance Gains

Our customer achieved two wins: a supportable solution for an end-of-life hardware problem, and a measurable increase in productivity. 

Operational Outcomes 

  • Removed dependence on obsolete hydraulic motion hardware 
  • Maintained original functionality and safety intent 
  • Improved maintainability and diagnostics for future troubleshooting 
  • Kept implementation scope tight (no mechanical changes) 

Performance Improvements 

ICS reduced cycle time by improving carriage return timing and increased throughput: 

  • Carriage return time: ~7 seconds → ~4 seconds 
  • Average cuts per hour: ~130 → ~150 

A Note on Lifecycle Upgrades

Controls obsolescence is a normal part of industrial automation. End-of-life notices are about product lifecycle and manufacturer support—not an indictment of the equipment’s original performance. The value of an upgrade like this is reducing downtime risk and keeping critical machines supported for years to come. 

Ready to Get Ahead of End-of-Life Risk?

If you’re running an Allen-Bradley 1756-HYD02 (or other end-of-life motion hardware), the next failure could be the one that turns into extended downtime, as parts and support may no longer be availableWe can help you evaluate your current setup, outline a migration path, and execute a low-disruption upgrade that keeps your machine’s proven operation intact. 

Talk with our team about: 

  • End-of-life and obsolescence planning 
  • HYD02 replacement strategies (Delta Motion RMC and more) 
  • Hydraulic motion troubleshooting, tuning, and upgrades 

Whether you’re proactively upgrading end-of-life controls or responding to an unexpected failure, ICS provides responsive industrial automation support, including 24/7 field service. 

Call ICS today or send us a message to get started.