CE Wiring Diagrams 1

[benlmurphy]

Hello Gentlemen,
I work for an American Industrial Service firm that builds custom control panels.
I have heard that to CE certify I need to convert our wiring diagrams to a European style. Does anyone know the standard that covers this? Any other standards that you would recommend for an industrial control panel would be helpful also.
Thanks,
Ben Murphy

 

[ccaserta]

Ben the electrical standard you want to review is EN 60204-1 or IEC 60204-1 depending on if you intend to license the panel. Do not limit yourself to just the electrical standard it is not that simple. It is necessary to find out the intended use of the machinery and if any other standards will apply such as lasers/UV lights, explosive atmospher and so on. You have to review Annex I of the Machinery Directive for requirements not covered in EN 60204-1. You must also consider EN 60529 for IP ratings and EN 954 for category of safety circuit and components to be used. Christopher Caserta
ccaserta@enorthhampton.com
Ph:904-225-0360

 

[benlmurphy]

Thanks Christopher!

 

[buzzp]

Colors should be considered as well. Most notably red in my case. Also, start and stop symbols: stop is 'o', run is '|'. We make single motor protection relays so I am not familiar with any other requirements.
ccaserta, Would the machinery directive apply to a panel?

 

[ccaserta]

You have to consider the final application and your customers needs. If you know that the electrical panel will be used on a machine, then definately consider Annex I of the Machinery Directive. If you build a panel without considering all the final requirements of the end application you could miss somehting that could cause you to redesign or buy a bigger panel and do another layout. That would cost you time and loss of money in several ways. Annex I of the Directive combines Electrical, Mechanical, Test, Labeling, user manual requirements, lighting, stoping (E-stops and normal stops), lifting, guarding, controls and much more. In addition components that fall into Annex IVB of the Machinery Directive are require to go through Type Approval certification if they are used as a safety component to protect a person.

Keep in mind that there are at least 12 main standards (not including component standards) that are required to perform a final machinery certification and they all work in conjunction with the Machinery Directive.

Your correct about your colors buzzp, red is called out in EN 60204-1 as AC controls, the rest of the required colors are listed as well. Although your probably using IEC 60947-5 for your European standard to conform to the Low Voltage Directive.

Christopher Caserta
ccaserta@enorthhampton.com
Ph:904-225-0360

 

[buzzp]

I just wouldn't think his responsibility would be with the whole system, just supplying a CE marked panel to a customer. The customer is likely another company that should be concerned with the 'system'. Am I wrong?

 

[ccaserta]

Your correct the customer is concerned with his system. As an OEM his concern is, I do not want to buy a panel that I will have to change or redesign because my vender did not consider all applicable Directives for Final application.
Example: There are computers for both Office and Industrial applications, Both CE Marked. A machine manufacture wants a PC that will control his system. The office computer will provide the function as well as the Indutrial PC. If I use the office PC, I will never pass my certification because the machinery directive was not considered. There are no symbologies, E-stops, levels of access codes, it hasn't been tested to the EMC directive correctly so I could fail my final system testing. I don't meet my IP requirements for Enclosures protection. There aren't any hard on/off switches and so on.
I agree the component manufacture is not responsible for the OEM final system. But he should be designing, as I'm sure you do to meet everyones requirements for final appications. Christopher Caserta
ccaserta@enorthhampton.com
Ph:904-225-0360

 

[buzzp]

Thanks for the clarification.

 

[stephenweinstein]

If it is electrical, also consider the Low Voltage Directive (mainly considered with electrical safety, i.e., electrocution and fire) and the EMC Directive (RF interference, etc.), not just the Machinery Directive. If it is purely mechanical or pneumatic, disregard this.