Control panel before and after: Gain productivity with lean automation, connectivity

Get wired for efficiency. This video, photos, and text explain how a cabling system can speed control panel design and construction, with build-time control panel assembly savings of 60% or more.


Flash is required!

Lean automation helps streamline control panel design on the right, producing overall savings of 35% and build time savings of 60% or more. Richard Chung, product manager, lean automation, Eaton, explains to CFE Media's Mark T. Hoske how the Eaton SmartWire-DT system helps with that, at the Eaton Menomonee Falls, Wis., facility. Video is about 9 minutes. Courtesy: CFE Media

The flat cable plugs into the back of the HMI-PLC unit, eliminating a gateway or communication card. It connects serially to other control panel devices using a snap-in connector for each. Courtesy: CFE MediaMachinery original equipment manufacturers, panel builders, and others can more easily see the productivity, reliability, and economic advantages of using a smart-module-type device-level wiring system when compared to a conventionally wired control panel.

In an interview with CFE Media, Richard Chung, Eaton product manager for lean automation, explained how to streamline control panel design to produce overall savings of 35% and build time savings of 60% or more. Below, Chung discusses traditional design control and electrical panel design and lean automation design, along with advantages beyond the obvious wiring savings.

Traditional control panel

Lean automation helps streamline control panel design on the right, producing overall savings of 35% and build time savings of 60% or more. Richard Chung, product manager, lean automation, Eaton, explains to CFE Media's Mark T. Hoske how the Eaton SmartWiBefore: On the left in the first photo and beginning of the video is a composite control panel design using standard electromechanical controls, with multiple pushbuttons and an operator interface on the door of the controls enclosure. (Enclosures here have clear covers for display purposes.) Inside the panel are basic motor starters and motor protectors, wired to contactors. On the top is a programmable logic controller (PLC) and I/O modules hardwired to the components on the door. While this demo panel packs in what typically would be in a larger panel, it does illustrate, in close proximity, the effort required to strip, route, connect, add wire markers, and bundle and secure all wiring and cabling so it’s neat and orderly. It takes a lot of time and can result in additional challenges with loose terminations or wire connections. An original equipment manufacturer or panel builder would check the wiring using a schematic diagram, yellow-lining the paper during the process to show what had been wired, for a thorough check.

Lean control panel

Machinery original equipment manufacturers and their customers can take advantage of remote diagnostics with web server capability on the controller and easy connection via Ethernet to the Internet to limit downtime. Courtesy: CFE MediaAfter: On the right of the first image and video is a lean solutions control panel using a lean connectivity system with a multi-conductor flat cable connection, which consolidates eight wires for smarter and faster wiring. A smart chip is embedded in each of the control components shown—contactor modules and pilot device modules (pushbuttons)—so they can communicate in distributed fashion with the main controller. Benefits include space savings through elimination of the traditional PLC, I/O modules, and associated wire channels. PLC functionality has been combined into the hardware of the operator interface, running a Microsoft Windows CE real-time operating system, with CoDeSys software runtime engine for the PLC code and visualization. The software, offered by more than 200 suppliers, eliminates the need to change PLC application programming. It uses IEC 61131-3 languages.

A trip condition can provide a local alarm indication and notification via the Internet. In an overload situation, the contactor can open, disconnecting the load before the circuit breaker can trip, so a remote restart is possible without a visit to the eThe flat cable plugs into the back of the HMI-PLC unit, eliminating another piece of hardware typically required, a gateway or communication card. It connects serially to all devices in the control panel using a snap-in connector for each. By simplifying and standardizing the way components are connected inside the control panel, the system reduces overall control panel size, eliminates hardwiring to remote I/O modules inside cabinet, and streamlines diagnostics and other communications outside the cabinet.

Beyond a footprint reduction, the system also can add functionality to an existing enclosure, such as when a retrofit application needs to add PLC- and operator-interface functionality, but there isn’t space with traditional design methods. Those changes can be made to an existing box with minimal changes to the existing design using lean automation.

To locate a device using Eaton SmartWire-DT wiring, clamp the module over the desired location, and crimp. An open module is shown at the bottom. Courtesy: CFE MediaMachinery original equipment manufacturers (MOEMs) and their customers also seek more remote troubleshooting functionality, which this enables, with web server capability on the controller and easy connection via Ethernet to the Internet. Such a connection allows (with appropriate security clearance) remote diagnostics—the ability to troubleshoot an outage or other malfunction remotely. In this way, repairs may be done in minutes, compared to many hours if an off-site MOEM technician needs to visit.

Wiring, space, diagnostics, productivity

Savings: Typical before-to-after savings is 35% overall, with build-time savings upwards of 60% or more, depending on the mix and configuration of the control panel. It avoids individual wire cutting, stripping, wiring identification, and the need for applying wire ferrules. Upon connection, the system locates any faults, though the flat-wire connection system helps to avoid errors.

Beyond faster time to operation, the system also can deliver more information about motor loads and other connected systems to streamline maintenance, perhaps avoiding typical scheduled technician visits in favor of remote monitoring. It can tap into the electronics of the motor starter, monitoring motor current, for instance. When settings are changed or thresholds are crossed, the results can be seen online, if needed.

Onboard communications inside each Eaton SmartWire-DT module helps improve speed to start-up over traditional control panel wiring. Courtesy: CFE MediaOnline diagnostics can reduce risk by eliminating the need to visit or open enclosures where personal protective equipment (PPE) is needed, even allowing remote reset capability after a trip condition. In an overload situation, the contactor can open, disconnecting the load before the circuit breaker can trip, so a remote restart is possible, without a personal visit or suiting up with PPE to open an enclosure.

Road show education

A multi-city U.S. Eaton road show has been detailing the advantages of lean automation, integrated modular components, use of CoDeSys, integrated HMI-PLCs for visualization, simpler integrated safety designs, web-enabled machines, diagnostics, energy awareness, and energy efficiency. The information above was gathered during a pre-event interview in July at the Eaton Innovation Center in Menomonee Falls, Wis.  

Eaton SmartWire-DT crimper, right, pushes the module closed over the flat wire. A connected Eaton pilot/pushbutton is shown, left. Courtesy: CFE Media- Mark T. Hoske is content manager, CFE Media, Control Engineering, Plant Engineering, and Consulting-Specifying Engineer, mhoske(at)


Panel building: Optimizing control panel design, construction – This article provides additional details and justification.

Time, material savings mean cost savings – This article includes tables with time and material examples.

No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
The true cost of lubrication: Three keys to consider when evaluating oils; Plant Engineering Lubrication Guide; 11 ways to protect bearing assets; Is lubrication part of your KPIs?
Contract maintenance: 5 ways to keep things humming while keeping an eye on costs; Pneumatic systems; Energy monitoring; The sixth 'S' is safety
Transport your data: Supply chain information critical to operational excellence; High-voltage faults; Portable cooling; Safety automation isn't automatic
Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.

Maintaining low data center PUE; Using eco mode in UPS systems; Commissioning electrical and power systems; Exploring dc power distribution alternatives
Synchronizing industrial Ethernet networks; Selecting protocol conversion gateways; Integrating HMIs with PLCs and PACs
Why manufacturers need to see energy in a different light: Current approaches to energy management yield quick savings, but leave plant managers searching for ways of improving on those early gains.

Annual Salary Survey

Participate in the 2013 Salary Survey

In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.

Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.

2012 Salary Survey Analysis

2012 Salary Survey Results

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.