Re: [PSES] Motor controller standards

2011-01-21 Thread emc-p...@ieee.org
It used to be EN50178. Not sure if that got rolled into a part 2 of 60947 or separate Standard. - Reply message - From: Ted Eckert ted.eck...@microsoft.com List-Post: emc-pstc@listserv.ieee.org Date: Fri, Jan 21, 2011 3:51 pm Subject: [PSES] Motor controller standards To:

RE: Motor controller standards

2011-01-21 Thread emc-p...@ieee.org
Hello Doug, I’ll tackle the North American side of this discussion. I believe UL 508C http://ulstandardsinfonet.ul.com/scopes/scopes.asp?fn=0508C.html is the standard for the United States. Its scope states “These requirements cover open or enclosed equipment that supplies power to control

Re: Motor controller standards

2011-01-21 Thread emc-p...@ieee.org
Doug, For the motor drives, take a look at the EN 61800 series of standards. I'd also be wary of using EN 60950-1, at least on its own, for the processors. If safety is involved (which it is if there are emergency stops involved) then you have a significantly bigger can of worms on your

IEEE P299.1

2011-01-21 Thread emc-p...@ieee.org
Does anyone know the status of this IEEE Standards development project (P299.1)? It was set to expire in Dec 2010 and I am trying to find a resource as to its voting status and likelihood of passing. Thanks, Doug - This message

Re: Motor controller standards

2011-01-21 Thread emc-p...@ieee.org
In message df8c703f-1bad-4662-932f-b323d2345...@mac.com, dated Fri, 21 Jan 2011, Doug Nix d...@mac.com writes: I am considering using EN 60950-1 as the base standard for the system as it uses some integrated industrial PC's, but I'm a bit stumped on what the appropriate electrical safety

RE: Motor controller standards

2011-01-21 Thread emc-p...@ieee.org
Would 61010-1 be the better base as it appears to be a control device? -Doug -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Doug Nix Sent: Friday, January 21, 2011 3:00 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Motor controller standards All, I am

Motor controller standards

2011-01-21 Thread emc-p...@ieee.org
All, I am consulting with a client that builds automation equipment used with chain and wire rope hoists. The system is comprised of a group of modules that can be connected via ethernet with a control console, auxilliary modules and hoist motor controllers to build a customized system. I am

Fw: Cable Locating Equipment and China

2011-01-21 Thread emc-p...@ieee.org
Ignore that last Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651-778-6336 Fax: 651-778-6252 - Forwarded by Robert E. Heller/US-Corporate/3M/US on 01/21/2011 09:06 AM - From: Robert E. Heller/US-Corporate/3M/US To: emc-p...@ieee.org List-Post:

Cable Locating Equipment and China

2011-01-21 Thread emc-p...@ieee.org
Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651-778-6336 Fax: 651-778-6252 - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your

Re: [PSES] EN 61000-4-6 calibration

2011-01-21 Thread emc-p...@ieee.org
David, Yes, if you are calibrating as a 50 ohm system. I believe it is actually preferred to add the 150-50 ohm adapters and calibrate as a 150 ohm system, though. Check out the diagram at the top of the last page of this document:

RE: [PSES] EN 61000-4-6 calibration

2011-01-21 Thread emc-p...@ieee.org
Hello David, You are correct for the BCI clamp. And if calibrating a CDN for 10V then it would be 140dBuV (Uo) – 15.6dB = 124.4dBuV (Umr) on the spectrum analyser. But for either of these calibrations, do use an watty attenuator also (because you don’t want to overload the spectrum