Challenge
The surge in e-commerce operations and expedited shipping demands have caused unprecedented challenges for distribution centers. To keep the pace, many distribution centers are implementing automation solutions to maximize system throughput and reduce fault recovery time. For a global leader in parcel services, it was mission-critical to develop an extensive fault monitoring and package flow control scheme. The parcel services leader commissioned another company to develop PLC (Programmable Logic Controller) programs for their multiple sortation systems; however, the engineering team was challenged with a tight timeline and limited availability. E Tech Group was engaged to quickly develop and troubleshoot the PLC programs as well as lead the system startup and testing.
Solution
To foster seamless parcel routing and pinpoint system abnormalities, their parcel operations required extensive fault monitoring and suppression for Human Machine Interface (HMI) animation and fault logging, conveyor operation, as well as package flow rate tracking. One aspect of maximizing throughput required the monitoring of package flow to adjust the feed rates for optimal input supply without exceeding the max system capacity. Maintaining throughput also relates to fault recovery times. “Proper fault suppression is a result of monitoring the status of every circuit breaker, Ethernet adapter, VFD status, power supply status, and all IO cards in the local and field racks.” explains Vimal Sandhu, E Tech Group Senior Controls Engineer about the importance of a fault isolation system. “For example, if a particular circuit breaker tripped, the loss of power may cause the PLC(s) to lose communications with numerous field devices. This can result in anywhere from 1 to 100+ unique faults displayed on the HMI. With proper fault suppression logic in the PLC, only the circuit breaker fault will be displayed. With fault suppression, troubleshooting time is greatly reduced which not only helps maintenance, but also aids in reducing system downtime.”
Experienced in PLC program development with sortation and conveyor machinery, E Tech Group prioritized the commission of the primary sorter systems which included diagnosing and correcting errors in the newly developed logic followed by extensive testing. Once completed, the team promptly set up the communication between the PLC and the customer’s warehouse management system. E Tech Group then proceeded with the setup of the numerous conveyor belts that were required to run with the package tracking logic.
Result
With changes satisfactorily completed to the primary sorter systems, E Tech Group was able to direct the former lead engineering team to update the subsequent systems. E Tech Group stayed onboard to support further testing as well as commission the remaining parts of the primary sorter line. Within a few months, the system became fully operational with E Tech Group’s programming support. The parcel services leader was able to fully maximize its large scale distribution center operations, and E Tech Group was later invited to lead the development, startup, and testing of the second phase which included an additional five sortation systems.
Challenge
Co-packing allows consumer packaged goods manufacturers faster turnaround times, greater flexibility, and often significant cost savings over doing it themselves. Successful co-packing relationships are based on good communication and the ability to measure, benchmark, and validate performance. When the largest independent beverage co-packer was facing data acquisition challenges from their manual performance monitoring system, the company needed to find an automated solution that could monitor real-time operations across its manufacturing sites.
Solution
The customer had been shopping around for this project. Others had quoted new “out of the box” options that included additional sensors & equipment, extended implementation times, and very lofty price tags. After building confidence and rapport through our Emergency Service Support visits, E Tech Group was asked to submit a proposal to deploy a robust data acquisition strategy that delivered an automated real-time performance monitoring system.
The customer was already using the Ignition industrial application platform from Inductive Automation. Ignition is developer-friendly and designed to be maintained at the customer level. The customer owns the data, and it is exportable in multiple formats. There are no subscription fees, so the ongoing maintenance costs are very low. Instead of adding another system like others had proposed, the E Tech Group team innovated the solution to expand on Ignition’s unlimited and fully customizable system that could efficiently provide real-time data to monitor performance.
Results
E Tech Group’s Senior Controls Engineer certified in Ignition designed an automated downtime performance monitoring and reporting system that would give the beverage co-packer visibility to metrics across multiple locations. Aiming to utilize existing sensors to save on hardware costs, several programmable logic controllers would need reprogramming. Remote development enabled E Tech Group to accomplish this without site visits, increasing their efficiency and the implementation time. Effectively employing this agile system resulted in significant cost savings for the beverage co-packer and provided the necessary tools to take their business to the next level.
Challenge
After producing some of the world’s most famous and flavorful confections for many years, a Northern California candy manufacturer’s aging conveyor system was becoming old, noisy, and obsolete. The existing conveyor system, which had sorted and moved large volumes of product for over a decade, was a line shaft design and was beginning to degrade. The factory was in desperate need of a conveyor system modernization which would increase efficiency, decrease noise and minimize maintenance costs.
Solution
For this project, E Tech Group (AG) used Ignition industrial application software from Inductive Automation and an Allen Bradley controller. The technology for the new conveyor was DC roller controlled. DC rollers are quieter, more energy efficient, and can be controlled more precisely with the set-up of multiple zones per conveyor. This technology allows for a variety of new features to enhance overall operations and reduce wear and tear. As an example, multiple rollers can be started and stopped in sections, and can also start and stop on demand. This enables a more efficient workflow based on capacity and need.
The addition of Ignition Software provided increased visibility to the plant floor, as well as the ability to pull more data via the new Itoh Denki controller. It also enabled AG to create templates for the DC roller controllers which included running data, alarming data and controls.
The upgrade and modernization of the candy manufacturer’s old, outdated conveyor system helped improve overall operational efficiency and enhance the automation processes. AG was able to eliminate the manufacturer’s noisy, worn-out system and modernize their entire conveyor operation with added features that created a quieter operation, extended life, and reduced wear and tear
Quieter Conveyor
Upon installation of the new system, the candy manufacturer noticed an immediate reduction in noise during the operation of the conveyor system.
More Efficiency
With a 24V DC motor nestled inside each roller’s tube, the conveyor system achieved better accumulation (a higher run rate). They also had tighter control of product placement which increased overall efficiencies.
Reduced Maintenance
The old conveyors were always running and had a lot of moving parts that would get worn out and require servicing or replacement. Since the modernization project has been completed, the manufacturer has seen a significant decrease in all service and maintenance costs.
– By Tony Schalk, Functional Safety Engineer (TÜV Rheinland), Automation Systems Engineer, E Technologies Sophisticated companies know that safety is a journey, not a destination. It is a part of their strategic and ongoing growth. As more and more companies look to implement safety programs, questions about budget, time, effort, and feasibility come into play. Larger companies may already employ a safety engineer or even a safety team, with well-established metrics and objectives each year. If you don’t fall into that category, don’t be discouraged. The most important thing you can do on any journey is to start. To begin your safety journey, you start with a risk assessment. In the United States, when an accident originates from machinery, the owner of the machine is responsible for the safety, not just the manufacturer of the machine. This means that if something happens, it’s technically your responsibility. If that doesn’t scare you, it should. The beauty of the risk assessment is that it is your education on what could happen with the machinery in your facility. What you choose to do with your newfound knowledge is up to you; however, in the immortal words of G.I. Joe, “Now you know, and knowing is half the battle.” There are a few caveats. Although companies could self-perform their risk assessments, it isn’t a job that just anyone in your plant can do. A TÜV certification is needed, as well as an understanding of ISO 13849 or IEC 62061 standards. Anyone could pick up the standard and follow the process, but it’s hard to implement a standard and its many details if you’re new to safety. This is where having a safety professional can be very beneficial for efficiency’s sake. He or she can walk into a situation and quickly identify what needs to … Continued
