Panel Builder US

October 20, 2020

In this edition of Allied’s “Ask The Expert” series, the topic is industrial control panel design with Jim Davis, director of advanced solutions & technical support at Allied Electronics & Automation. Jim leads the technical support and application engineering teams Allied, collaborating with customer support and sales teams to ensure a best-in-class experience for the company’s customers.  Jim has an extensive background in electronics and engineering with almost three decades of experience at companies like Allied, Schneider Electric and Acme Manufacturing.

When creating control panel designs for industrial control systems and aligning the panels, how important is wiring to the overall success of the job?

In terms of laying out industrial control panels, wiring plays an absolutely critical role in effective design and construction. It’s crucial that the task be completed in a manner that fits industry standards.

What are some ways to ensure you’re creating these designs effectively and efficiently, especially for systems with small to midsize PLCs that control machines and equipment?

First, separate the power and control wiring so there’s less of a chance that electrical noise could affect control signals. You can accomplish this by laying out the panel in such a way that power and control are in separate sections. All power fuses, motor starters and variable frequency drives should be grouped on the same side of the panel as the incoming power. All the low-voltage control components should be placed on the other side. Take note that contactors and variable frequency drives will still need control wiring. You should map out a path for the control wires to get to the power side, while each remains separated.

Second, separate field wiring from internal wiring by placing terminal strips so that there are wire ducts for each. Not only does this simplify the field wiring, it makes it easier if you have to disconnect the wiring when shipping the machine. To most effectively achieve this separation, consider how the field wiring going to the machine will route into the panel. Decide if you will use conduit, cables or wireway and if the wiring will enter from the top, bottom or side. Don’t lose sight of the first best practice and figure out how best to keep power and control wiring separated.

Next, determine the right sized wiring duct. This is important because wiring ducts can consume a significant amount of space in a panel, especially if you run extra ducts to separate power and control. A right-sized duct is one that’s neither under-filled nor over-filled and has space for easy access when wiring.

Fourth, provide adequate space for wire routing. It’s completely understandable if you’d be inclined to reduce the working space around components to shrink the overall size of the panel when you’re designing panel layouts in CAD. The problem is, you’ll still need sufficient room to fit your hands and tools into spaces. Once the panel is built, evaluate the space around various devices to help improve future designs. Also, if you’re working with larger wire you should leave enough room to route and bend them.

Fifth and finally, make sure to properly ground the panel and devices. To accomplish this, include a row of ground terminals in the panel and connect all ground wires there. You should also consider mounting a ground terminal adjacent to the disconnect and running a large ground wire between it and the ground terminal. This will make it obvious where to terminate the ground for the incoming power.

That’s a lot of great information! What are the national and international standards one should adhere to when creating these designs?

There are three in particular that I find useful. The first is NFPA79: Electrical Standard for Industrial Machinery. The official description is:  “NFPA 79 provides safeguards for industrial machinery to protect operators, equipment, facilities, and work-in-progress from fire and electrical hazards.” It contains a wealth of helpful information and is an essential tool for anyone designing industrial controls & equipment. Another one is UL508A: the UL standard for the construction of Industrial Control Panels.

Finally, the CE specifications for Europe contain a mix of directives & standards.  These include:

Since you brought up Europe, are there any initial steps that should taken to ensure compliance there?

The best way to get started in the European market is to consult with a notified body.  A notified body is an organization authorized by the European Union to assess the conformity of products.  They can help you determine which particular directives and standards are applicable to your equipment and also educate you on methods for certifying your equipment.

For your own benefit, some of the Machinery Directive elements should be incorporated into your standard designs. They’re good practice and will help you create a more universal design.

Lastly, what are some good resources to consult for panel design and build?

We have a section of Allied’s Expert Advice content dedicated to industrial control panels, and we’ve partnered with both Schneider Electric and Eaton on industrial panel builder digital resource hubs. This should be a useful place to start.

Important Links Bar.jpg

https://expert.alliedelec.com/expert-advice/ask-the-expert/allied-ask-the-expert-industrial-control-panel-design-2/

 

Editor's Pick: Featured Product News


 

Rittal is replacing its previous KS series with the new fibreglass enclosures AX and so completely redefining fibreglass enclosure technology. The development is based on Rittal’s technology for sheet steel and stainless-steel enclosures, which can be used to greatly simplify and speed up manufacturing processes in panel building and switchgear manufacturing. Now, for the first time, fibreglass enclosures also feature this system technology. This is a win-win situation for plant constructors:

Read More

 

 


 

Products for Panel Builders

  • Prev
Bourns, Inc. recently announced the addition of a new model series to its leading  ...
Vishay Intertechnology, Inc. recently introduced a new series of surface-mount AC line rated ...
The newest model of the DXM1200 series wireless controllers maintain the same programming and logic ...
ABB has recently announced the release of ReliaGear LV MCC. The low voltage motor control center is ...
The new CaeBackup/CaeRestore options for B&R's APROL process control system ensure even better ...
binder recently announced an M16 X-coded connector capable of handling the data speeds demanded by ...
binder recently announced the new 818 Series: M8 D-Coded connectors. These will interest engineers ...
SCHURTER announces its new TA36 thermal circuit breaker, improving on an already successful series ...
The new CLICK PLUS PLC series is the next generation of simple control. Building on the practical ...
Littelfuse, Inc. recently launched a new building automation microsite ( ...

Article Feature - Monthly Industry Focus


JAE recently announced the launch of the MX72C / D Series, a squib connector for automotive SRS devices that conforms to the interface standard with omitted shorting bar (shunt-less), and is becoming popular in Europe and the United States.

Recent changes to automotive passenger safety requirements worldwide is serving as a catalyst to an increased level of collision safety performance, especially in Europe and the United States is expected to grow. In addition to the common SRS devices found in a vehicle, new applications such as knee, thorax and pedestrian airbags have begun to trend in an effort to ensure human safety.

Read More


News for Panel Builders

News for Panel Builders
  • Prev
In support of the company’s long-term strategic plan and as the company continues to develop its ...
AVX Corporation has recently joined the South Carolina Manufacturers Alliance (SCMA), the ...
Graybar recently announced several leadership changes, all of which are effective May 1, ...
Supporting its long-term modernization strategy and building on its goal to remain ...
Trace Software International webinars are presented by our experts to provide you best practices in ...
Yokogawa Electric Corporation and Integrated Commissioning and Qualification Consultants, Corp. of ...
Electronic Components Industry Association (ECIA) was recently pleased to announce that ...
nVent Electric plc  recently announced that Greg Scheu has been appointed to its Board of ...
Pilz provides automation solutions for plant and machinery: complete and simple. From sensor ...
TPC Wire & Cable (TPC), a portfolio company of Audax Private Equity, has recently announced ...

Siemens Smart Infrastructure released its new public fast charger Sicharge D for the IEC markets. It is suited for highway and urban fast charging stations, city parking as well as shopping malls and provides one of highest peak efficiencies on the market at 96 percent, scalable charging power and dynamic power sharing.

“With its upgradability and dynamic charging, it is a big step forward to support the future of eMobility. Our customers can be sure to be prepared for future eventualities of eMobility, be it increasing number of required charging options or increasing charging speeds,” said Birgit Dargel, Global Head of Future Grids at Siemens Smart Infrastructure.

Read More


Whether manufacturing packaging machines or components for airliners, companies must be able to guarantee all metal parts will remain durable and dependable throughout the product’s lifecycle. Recognizing this challenge, LSP Technologies pioneered an effective method to increase the strength of metal parts: surface treatment with pulsed laser beams. One of their most recent laser peening systems relies on the flexibility of EtherCAT and PC-based control technology from Beckhoff to meet the most diverse customer requirements.

Read More

 

Selecting a panel meter for a particular application can be a daunting task, given the wide variety of products that are available today. There are many factors to consider when making a decision. Let’s look at a few of the major items.

Function

Panel meters can be categorized by type, size, style or other criteria. One way to begin the selection process is to look at the meter’s function – what measurement is this meter making? Some common functions are ammeter, voltmeter, frequency meter, power meter, energy meter, counter, timer, temperature meter, process meter, and controller.

Read More