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" <[email protected]> List-Post: [email protected] Date: Fri, Jan 21, 2011 3:51 pm Subject: [PSES] Motor controller standards To: "[email protected]" <[email protected]> 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 a motor or motors operating at a frequency or voltage different than that of the input supply.” This is the standard my former employer used for their AC drives and soft starts <http://products.schnei er-electric.us/products-services/products/ac-drives-and-soft-starts/> . This standard corresponds to CAN/CSA-22.2 No. 14. Best regards, Ted Eckert Compliance Engineer Microsoft Corporation [email protected] The opinions expressed are my own and do not necessarily reflect those of my employer. -----Original Message----- From: [email protected] <mailto:[email protected]> [mailto:[email protected]] <mailto:[mailto:[email protected]]> On Behalf Of Doug Nix Sent: Friday, January 21, 2011 3:00 PM To: [email protected] <mailto:[email protected]> Subject: Motor controller standards 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 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 standard for the drive module would be. The module uses an off-the-shelf VFD, with some custom boards for emergency stop and communications, all integrated into a single box. Any thoughts would be appreciated! -- Doug Nix, A.Sc.T. IEEE Engineering & Human Environment Joint Chapter Toronto Section, Ontario, Canada http://ewh.ieee.org/r7/toronto/chapters/humanenv.htm <http://ewh.ieee.org/r7/toronto/chapters/humanenv.htm> [email protected] <mailto:[email protected]> mobile (519) 729-5704 fax (519) 653-1318 Find me LinkedIn at http://www.linkedin.com/in/dougnix <http://www.linkedin.com/in/dougnix> Fostering Technological Innovation and Excellence for the Benefit of Humanity. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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